Recent advances in nuclear reaction theories for weakly bound nuclei
|
|
- Shannon Chandler
- 6 years ago
- Views:
Transcription
1 Recent advances in nuclear reaction theories for weakly bound nuclei Antonio M. Moro Universidad de Sevilla, Spain May 25, 215 Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 1/31
2 Outline 1 Core excitation effects in reactions Static and dynamic core excitations. Implementation in the CDCC framework. Application to nuclear and Coulomb breakup of 11 Be. 2 The problem of inclusive breakup. The Ichimura, Austern, Vincent (IAV) model revisited. Application to deuteron and 6 Li inclusive breakup. Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 2/31
3 Why do we use few-body models in reactions? Microscopic approach 11 Be n Be* Start from (effective) NN interaction. Complicated many-body scattering problem [Descouvemont and Hussein, PRL 111, 8271 ( 13)] Few-body approach 11 Be Be n Projectile described with few-body model Inert clusters (cluster excitations not included) Phenomenological cluster-target interactions More transparent link between reaction and structure Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 3/31
4 Standard CDCC approach to the few-body scattering problem Example: 7 Li scattering in a three-body model 3-body Hamiltonian: H= T R + h r + V α (r α )+V t (r t ) Model wavefunction: Ψ(R, r)=φ gs (r)χ (R)+ N φ n (r)χ n (R) n> Coupled equations: [H E]Ψ(R, r)= [ E εn T R V n,n (R) ] χ n (R)= V n,n (R)χ n (R) 7 n n Li α r t R r α r t T Transition potentials: V n,n (R)= drφ n (r) [V α(r α )+V t (r t )]φ n (r) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 4/31
5 Limitations of the standard CDCC 1 Does not provide breakup accompanied by target excitation, eg. d+a p+n+a generalized in Yahiro et al, Prog. Theor. Phys. Suppl. 89 (1986)32 2 Originally limited to two-body projectiles (three-body reactions) recently extended to 3-body projectiles ( 6 He, 11 Li): Matsumoto et al, NPA738 (24) 471, PRC7 (24) 6161(R). Rodriguez-Gallardo et al, PRC72 (25) 247, PRC77 (28) Projectile described with single-particle /cluster models (ignores mixing of configurations and cluster excitations). 4 Does not provide breakup accompanied by absorption of one of the fragments (incomplete fusion). Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 5/31
6 Core-excitation effects Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 6/31
7 Core excitation in breakup: frozen-halo picture Ψ JM ( r,ξ)= [ ϕ J l,j ( r) Φ I(ξ) ] JM l n ϕ J l,j ( r)= valence particle wavefunction Φ I (ξ)= core wavefunction (frozen) Be(I) 11 Be(J) 3/ MeV Be( ) x 1d 3/2 + 5/ MeV Be( + ) x 1d 5/2 11 Be Be 1/2 1 1/ MeV 11 Be Be( + ) x 1p 1/2 Be( + ) x 2s 1/2 Pb n Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 7/31
8 Core excitation in breakup: frozen-halo picture Ψ JM ( r,ξ)= [ ϕ J l,j ( r) Φ I(ξ) ] JM l n ϕ J l,j ( r)= valence particle wavefunction Φ I (ξ)= core wavefunction (frozen) Be(I) 11 Be(J) 3/ MeV Be( ) x 1d 3/2 + 5/ MeV Be( + ) x 1d 5/2 11 Be Be 1/2 1 1/ MeV 11 Be Be( ) x 1p + 1/2 Be( + ) x 2s 1/2 Pb n Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 7/31
9 Core excitation mechanism in breakup [ Ψ JM ( r,ξ)= ϕ J l,j,i ( r) Φ I (ξ) ] JM l,j,i n l Be(I) 11 Be(J) 3/ MeV Be( + e[ ) x1d 3/2 ] + f [ Be( ) x 2s 1/2 ] 2 + 5/ MeV c[ Be( + ) x1d 5/2 ] + d [ Be( 2 + ) x 1d 5/2] Be* 11 Be 1/2 1 1/ MeV 11 Be Be( + A[ ) x 1p1/2 ] + B [ Be( 2 + ) x 1p 3/2 ] a[ ] Be( + ) x 2s Be( 2 + 1/2 + b [ ) x 1d 5/2] Pb n Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 8/31
10 Core excitation mechanism in breakup [ Ψ JM ( r,ξ)= ϕ J l,j,i ( r) Φ I(ξ) ] JM l,j,i n l Be(I) 11 Be(J) 3/ MeV Be( + e[ ) x1d 3/2 ] + f [ Be( ) x 2s 1/2 ] / MeV c[ Be( + ) x1d 5/2 ] + d [ Be( 2 + ) x 1d 5/2] Be* 11 Be 1/2 1 1/ MeV 11 Be A[ Be( ) x 1p 1/2 ] + B [ Be( ) x 1p 3/2 ] + a[ ] 2 + Be( + ) x 2s Be( 2 + 1/2 + b [ ) x 1d 5/2] Pb n How do core transitions and core admixtures affect the inelastic/breakup cross sections? Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 8/31
11 Full CDCC calculations with core excitation Standard CDCC use coupling potentials: V α;α (R)= Ψ α J M ( r) V vt(r vt )+V ct (r ct ) Ψ α JM ( r) Extended CDCC (XCDCC) use generalized coupling potentials V α;α (R)= Ψ α J M ( r,ξ) V vt(r vt )+V ct (r ct,ξ) Ψ α JM ( r,ξ) Ψ α JM ( r,ξ): two-body WF with deformed potential (e.g. PRM, PVM, etc), microscopic transition densities, etc (static/structure effect) The non-central part of V ct (r ct,ξ) gives rise to core excitations/deexcitations (dynamic core excitation). Summers et al, PRC74 (26) 1466 (bins) R. de Diego et al, PRC 89, 6469 (214) (THO pseudo-states) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 9/31
12 Coulomb barrier breakup at low energies: 11 Be+ 197 Au at 31.9 MeV (.8V b ) Experiment: TRIUMF (Aarhus - LNS/INFN - Colorado - GANIL - Gothenburg -Huelva - Louisiana - Madrid - St. Mary - Sevilla - TRIUMF - York collaboration) Breakup probability: P bu (θ)= σ bu (θ) σ bu (θ)+σ qel (θ) = N bu (θ) N bu (θ)+n qel (θ) Inelastic probability (requires γ-rays coincidences): P inel (θ)= σ inel (θ) σ el (θ)+σ inel (θ)+σ bu (θ) = N inel (θ) N el (θ)+n inel (θ)+n bu (θ) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla /31
13 Application to 11 Be+ 197 Au at 31.9 MeV (.8 V b ) P inel (θ)= σ inel (θ) σ el (θ)+σ inel (θ)+σ bu (θ) P bu (θ)= σ bu (θ) σ el (θ)+σ inel (θ)+σ bu (θ) Elastic 11 Be+ 197 Elab =31.9 MeV Inelastic 11 Be+ 197 Elab =31.9 MeV Breakup 11 Be+ 197 Elab =31.9 MeV 1 σ/σ R Exp. (TRIUMF) Standard CDCC XCDCC: no continuum XCDCC: full Preliminary θ c.m. (deg) P inel Preliminary TRIUMF data Standard CDCC XCDCC θ c.m. (deg) P bu Preliminary Exp. (TRIUMF) Standard CDCC (l max =) XCDCC (l max =7) θ c.m. (deg) CDCC describes breakup, but overestimates inelastic cross sections. XCDCC accounts well for elastics, inelastic and breakup. Be excitations unimportant (dominance of E1 couplings). Some underestimation remains for breakup (convergence?, non-elastic breakup?) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 11/31
14 Comparison of E1 probabilities db(e1)/de (e 2 fm 2 /MeV) Palit et al. (GSI) Fukuda et al. (RIKEN) Single-particle model (Capel et al) PRM (Summers et al) Millener et al E rel (MeV) 11 Be models: Data: Single-particle model: Capel et al, PRC 68, (23) Deformed-core model: Summers et al, PLB 65, 24 (27) - Nakamura et al, Phys.Lett. B331, 296 (1994), RIKEN - Palit et al, PRC 68, (23), GSI. - Fukuda et al, PRC 7, 5466 (24), RIKEN. - Millener et al, PRC 28, 497 (1983). The single-particle model assumed in CDCC reproduces the continuum B(E1), but overestimates the B(E1) for the bound state by a factor of 2. The particle-plus-deformed core model assumed in XCDCC reproduces the bound and unbound B(E1) strengths. The XCDCC analysis of the Coulomb-barrier data for 11 Be+ 197 Au supports the B(E1) strength extracted from the Coulomb dissociation experiment 11 Be+ 28 Pb at RIKEN by Fukuda et al. Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 12/31
15 Dynamic core excitations in 11 Be: spectroscopic factors State Model + (ls)j 2 + s 1/2 2 + d 5/2 1/2 + (g.s.) PRM SM (WBT) /2 + (1.78 MeV) PRM SM(WBT) /2 + (3.41 MeV) PRM SM(WBT) /2 + 1, 5/2+ 1 dominant Be(gs) nlj configuration 3/2 + 1 dominant Be(2 + ) 2s 1/2 configuration Dynamic core excitation effects expected for the excitation of the 3/2 + resonance. Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 13/31
16 Evidence of dynamical core excitations in p( 11 Be,p ) at 64 MeV/u Data: Shrivastava et al, PLB596 (24) 54 (MSU) 3/ MeV 5/ MeV 1/2 1.5 MeV.32 1/ Be E rel = 2.5 MeV contains 5/2 + resonance (expected single-particle mechanism) E rel =2.5 5 MeV contains 3/2 + resonance (expected core excitation mechanism) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 14/31
17 Evidence of dynamical core excitations in p( 11 Be,p ) at 64 MeV/u Data: Shrivastava et al, PLB596 (24) 54 (MSU) dσ/dω c.m. (mb/sr) E rel =2.5-5 MeV XCDCC: with core excitations XCDCC: no core excitation dσ/dω c.m. (mb/sr) 3 2 E rel =.-2.5 MeV Core-excitation gives a large contribution to nuclear breakup (A.M.M. and R. Crespo, PRC 85, (212); R.de Diego et al, PRC 89, 6469 (214)) θ c.m. (deg) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 14/31
18 The problem of inclusive breakup revisited Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 15/31
19 Breakup observables NOT provided by CDCC A g.s. p n ELASTIC BREAKUP (EBU) ("diffraction") 2 H A A* p n p Inelastic breakup n Incomplete fusion + transfer p (A+n)* NON ELASTIC BREAKUP ("stripping") n p COMPLETE FUSION (A+n+p)* CDCC provides only the EBU part How to compute the NEB part? Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 16/31
20 Why studying inclusive breakup? Surrogate reactions at low energies to extract n + A CN cross sections: E.g.: d+ A p+b Understanding of reaction mechanisms in breakup reactions at Coulomb-barrier energies with weakly-bound nuclei: 6,7 Li, 6 He, etc E.g.: 6,7 Li+A α+x largeαyields Fusion studies: incomplete fusion is part of the NBU cross section Knockout reactions at intermediate energies (stripping): E.g.: 19 C+ 9 Be 18 C+X Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 17/31
21 Importance of NEB part in knockout reactions 9 Be( 9 Be, 8 Be+X)Y Bazin et al, PRL 2, (29) CDCC accounts well for the EBU ( diffraction ) part, but this constitutes only a small fraction of the total inclusive breakup. Glauber/eikonal models are used as alternative, but they should be checked against fully quantum-mechanical formalism. Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 18/31
22 Sume-rule theories for inclusive breakup Baur & co: DWBA sum-rule with surface approximation. Baur et al, PRC21, 2668 (198). Hussein & McVoy: extraction of singles cross section combining the spectator model with sum rule over final states. Nucl. Phys. A445, 124 (1985). Ichimura, Austern, Vincent (IAV): Post-form DWBA. Ichimura, Austern, Vincent, PRC32, 431 (1985). Austern al, Phys. Rep.154, 125 (1987). Udagawa, Tamura (UT): prior-form DWBA. Udagawa and Tamura, PRC24, 1348 (1981). Udagawa, Lee, Tamura, PLB135, 333 (1984). Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 19/31
23 Sume-rule theories for inclusive breakup Baur & co: DWBA sum-rule with surface approximation. Baur et al, PRC21, 2668 (198). Hussein & McVoy: extraction of singles cross section combining the spectator model with sum rule over final states. Nucl. Phys. A445, 124 (1985). Ichimura, Austern, Vincent (IAV): Post-form DWBA. Ichimura, Austern, Vincent, PRC32, 431 (1985). Austern al, Phys. Rep.154, 125 (1987). Udagawa, Tamura (UT): prior-form DWBA. Udagawa and Tamura, PRC24, 1348 (1981). Udagawa, Lee, Tamura, PLB135, 333 (1984). Most of these theories have fallen into disuse and should be revisited Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 19/31
24 Formal expression for non-elastic breakup (NEBU) Inclusive breakup: (b+x) +A b+(x+a) } {{ }} {{ } a c Inclusive differential cross section:σ inc b Post-form expression for inclusive breakup: d 2 σ = 2π ρ(e b ) dω b E b v a Ψ c,( ) xa wavefunctions for c x+astates Ψ (+) exact many-body wavefunction c =σ EBU b +σ NEBU b χ ( ) b Ψc,( ) xa V bx+ V ba U ba Ψ (+) 2 δ(e E b E c ) Inclusion of all relevant c = x + A channels is not feasible in general use closed-form models Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 2/31
25 Austern, Ichimura, Vincent (IAV) model for non-elastic breakup (NBU) 1 Assume b particle is an spectator, and described by some OMP U b χ ( ) b ( k b, r b ) 2 x A wavefunction following breakup a+a b+x+a, and projected onto A gs : Ψ 3b(+) xb [K x + U xa E x ]ϕ x (r x )=(χ ( ) b V bx Ψ 3b(+) xb 3-body total WF (CDCC, Faddeev). ϕ x (r xa ) x-particle WF following breakup. U xa = V xa + iw xa x+a optical potential 3 The asymptotics ofψ x (r x ) gives the EBU part. 4 The NBU part is the loss of flux ( absorption ) in the x+a gs channel: dσ NEBU dω b de b = 2 v a ρ b (E b ) ϕ x W xa ϕ x Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 21/31
26 Application of IAV model to deuteron inclusive breakup EBU calculated with full 3-body model (CDCC) NBU calculated with IAV model, in DWBA:Ψ 3b(+) χ (+) d (R)φ d(r bx ) [K x + U xa E x ]ϕ x (r x )= χ ( ) b V bx Ψ 3b(+) xb χ ( ) b V bx χ (+) a φ a (r bx ) 93 Ed =25.5 MeV dσ/dω p de p (mb/sr/mev) 1.1 Pampus et al. EBU (CDCC) NEB (DWBA) TBU (E p =14 MeV) θ c.m. (deg.) Calculations: J. Lei (PhD thesis) Data: Pampus et al, NPA311 (1978)141 Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 22/31
27 Application to 29 Bi ( 6 Li+,α+X) dσ/dσ R dσ/dσ R dσ/σ R dσ/dσ R dσ/dσ R Elastic scattering 5 15 θ cm (deg.) MeV 26 MeV 28MeV 32MeV 36MeV 4MeV MeV 34MeV 38MeV 5MeV OMP CDCC 5 15 θ cm (deg.) dσ/dω (mb/sr) dσ/dω (mb/sr) dσ/dω (mb/sr) dσ/dω (mb/sr) dσ/dω (mb/sr) EBU (CDCC) Inclusive α s NEB (FR-DWBA) TBU=EBU+NEB 28 MeV 4 3 MeV 9 36 MeV MeV MeV 36 5 MeV MeV 32 MeV 5 15 θ lab (deg.) MeV 34 MeV 5 15 θ lab (deg.) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 23/31
28 28 Pb( 6 Li,α+X) 28 Pb( 6 Li, αx) dσ/dω (mb/sr) dσ/dω (mb/sr) 4 2 Signorini Kelly NEB EBU TBU MeV 33 MeV MeV 39 MeV 15 5 Data: - Kelly et al, PRC63, 2461 (2) - Signorini et al, PRC67, 4467 ( 3) 5 15 θ lab Inclusiveαdominated by NEB θ lab EBU only dominates at very small angles (weakly absorbed distant trajectories ). Overall good agreement with data from Signorini et al (Legnaro), but with some global overestimation. Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 24/31
29 28 Pb( 7 Li,α+X) 28 Pb( 7 Li, α X) dσ/dω (mb/sr) dσ/dω (mb/sr) MeV Preliminary 39 MeV 33 MeV 5 15 θ lab (deg) Kelly et al. Signorini et al. EBU (CDCC) NEB (with remnant) TBU Data: - Kelly et al, PRC63, 2461 (2) - Signorini et al, PRC67, 4467 ( 3) 5 15 θ lab (deg) Poor agreement with existing data may suggest other sources ofα s, e.g. 7 Li+ 28 Pb α+t+ 28 Pb α+α+ 27 Tl 7 Li+ 28 Pb 8 Be+ 28 Pb α+α+ 27 Tl Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 25/31
30 6 Li+ 29 Bi: incident energy dependence of cross sections 4 6 Li+ 29 Bi 3 σ (mb) 2 σ R (CDCC) 1 V b E lab (MeV) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 26/31
31 6 Li+ 29 Bi: incident energy dependence of cross sections 4 6 Li+ 29 Bi 3 σ (mb) 2 1 V b σ R (CDCC) α + d EBU (CDCC) E lab (MeV) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 26/31
32 6 Li+ 29 Bi: incident energy dependence of cross sections 4 6 Li+ 29 Bi 3 σ (mb) 2 1 V b σ R (CDCC) α + d EBU (CDCC) NEB-α (d "absorbed") E lab (MeV) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 26/31
33 6 Li+ 29 Bi: incident energy dependence of cross sections 4 6 Li+ 29 Bi 3 σ (mb) 2 1 V b σ R (CDCC) α + d EBU (CDCC) NEB-α (d "absorbed") NEB-d (α "absorbed") E lab (MeV) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 26/31
34 6 Li+ 29 Bi: incident energy dependence of cross sections 4 6 Li+ 29 Bi 3 σ (mb) 2 1 V b σ R (CDCC) α + d EBU (CDCC) NEB-α NEB-d CF (exp.): Dasgupta et al E lab (MeV) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 26/31
35 6 Li+ 29 Bi: incident energy dependence of cross sections 4 6 Li+ 29 Bi 3 σ (mb) 2 1 V b σ R (CDCC) α + d EBU (CDCC) NEB-α NEB-d CF (exp.): Dasgupta et al. SUM(CF+NEB-α+NEB-d+EBU) E lab (MeV) σ reac σ α+d (EBU)+σ α (NBU)+σ d (NBU)+σ(CF) Suggests small transfer cross sections (for this reaction!) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 26/31
36 6 Li+ 28 Pb α+x: comparison of IAV and UT models IAV model relies on post-form DWBA Udagawa and Tamura use a prior-form DWBA sum-rule Only elastic breakup fusion is accounted for (no target excitation) dσ/dω (mb/sr) DWBA post (IAV) DWBA prior (UT) 29 Bi( 6 5 MeV θ lab (deg) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 27/31
37 Testing the post-prior equivalence for 29 Bi( 6 Li,α X) ϕ post x x + n x with n x = χ b χ (+) φ a(r bx ) (NO term) =ϕ prior d 2 σ inc = 2 ρ b (E b ) ϕ post x W xa ϕ post x = 2 ρ b (E b ) ϕ prior x W xa ϕ prior x + n x W xa n x + 2Re[ ϕ prior x W xa n x de b dω b v a v a } {{ } } {{ }} {{ }} {{ } UT HMV Interf. IAV a dσ/de (mb/mev) post formula (IAV) prior formula (UT) NO term interference term prior+no+interference 29 Bi( 6 3 MeV α energy in CM (MeV) Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 28/31
38 Possible applications and extensions Assuming, W xa = W dir xa + Wfus xa, ICF might be computed as dσ NEBU dω b de b = 2 v a ρ b (E b ) ϕ x W fus xa ϕ x Calculations for stripping part in one-nucleon removal cross sections (knockout) at intermediate energies may provide a benchmark for standard semiclassical approaches. Application to more weakly bound (e.g. halo) nuclei should be possible, but might require going beyond (DWBA) in the calculation ofϕ x (eg. CDCC): [K x + U xa E x ]ϕ x (r x )=(χ ( ) b V bx Ψ 3b(+) xb Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 29/31
39 Conclusions Recent extensions of existing few-body reaction models, including their application to 3-body projectiles and core excitations in the structure and dynamics, are expected to improve our understanding of reactions with exotic nuclei. Core excitation effects have been found to be important for breakup, particularly with light target. Could be important for A(p, pn) quasi-free scattering reactions? Inclusive breakup theories show a promising agreement with existing breakup data, but remaining discrepancies with data might require going beyond DWBA. These theories may provide a promising framework for applications of current interest requiring inclusive breakup cross sections: surrogate reactions, incomplete fusion studies, knockout reactions, etc. Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 3/31
40 Conclusions Recent extensions of existing few-body reaction models, including their application to 3-body projectiles and core excitations in the structure and dynamics, are expected to improve our understanding of reactions with exotic nuclei. Core excitation effects have been found to be important for breakup, particularly with light target. Could be important for A(p, pn) quasi-free scattering reactions? Inclusive breakup theories show a promising agreement with existing breakup data, but remaining discrepancies with data might require going beyond DWBA. These theories may provide a promising framework for applications of current interest requiring inclusive breakup cross sections: surrogate reactions, incomplete fusion studies, knockout reactions, etc. Everything should be made as simple as possible, but not simpler Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 3/31
41 List of collaborators Inclusion of core excitation effects with: J.M. Arias, M. Gómez-Ramos (Univ. of Sevilla, Spain). J.A. Lay (INFN/Univ. di Padova) R. Crespo, Raúl de Diego, A. Deltuva (Lisbon, Portugal) Inclusive breakup calculations done with Jin Lei (Univ. of Sevilla, Spain) (PhD thesis). Workshop on Weakly Bound Exotic Nuclei, Natal (Brasil), May 215 A. M. Moro Universidad de Sevilla 31/31
Workshop on low-energy nuclear reaction dynamics
Workshop on low-energy nuclear reaction dynamics Antonio M. Moro Universidad de Sevilla, Spain May 27, 2014 Workshop on low-energy nuclear reaction dynamics A. M. Moro Universidad de Sevilla 1/46 Outline
More informationThe role of core excitations in break-up reactions
The role of core excitations in break-up reactions J. A. Lay 1, A. M. Moro 2, J. M. Arias 2, R. de Diego 3 1 DFA Galileo Galilei, Università di Padova and INFN, Sezione di Padova, Via Marzolo 8, I-35131
More informationEvaluation of inclusive breakup cross sections in reactions induced by weakly-bound nuclei within a three-body model
Evaluation of inclusive breakup cross sections in reactions induced by weakly-bound nuclei within a three-body model Jin Lei, Antonio M. Moro Departamento de FAMN, Universidad de Sevilla, Apartado 165,
More informationSingle-particle and cluster excitations
Single-particle and cluster excitations TALENT Module Nb. 6 A. M. Moro Universidad de Sevilla 9/32 Inelastic scattering: cluster model Some nuclei permit a description in terms of two or more clusters:
More informationDynamics of the scattering of 11 Li on 208 Pb at energies around the Coulomb barrier
Dynamics of the scattering of 11 Li on 208 Pb at energies around the Coulomb barrier J. A. Lay Departamento de Física Atómica, Molecular y Nuclear; Universidad de Sevilla University of Surrey, 9 th November
More informationSemi-Classical perturbation theory Coulomb only First-order most used
direct reactions Models for breakup Semi-Classical perturbation theory Coulomb only First-order most used TDSE (Time Dependent Schrodinger Equation) Coulomb + Nuclear Semi-classical orbit needed DWBA (Distorted
More informationDescription of (p, pn) reactions induced by Borromean nuclei
Fiera di Primiero. October 6, 2017 Selected Topics in Nuclear and Atomic Physics Description of (p, pn) reactions induced by Borromean nuclei Jesús Casal ECT /FBK, Trento, Italy Mario Gómez-Ramos Antonio
More informationInclusive breakup measurements of the 7 Li+ 119 Sn system.
Inclusive breakup measurements of the 7 Li+ 119 Sn system. M. A. G. Alvarez 1, A. Di Pietro 2, B. Fernández 3, J. P. Fernández-García 2,4, P. Figuera 2, L. R. Gasques 1, J. Gómez-Camacho 3, M. Lattuada
More informationDeuteron induced reactions, spin distributions and the surrogate method
Varenna, June 17th 215 slide 1/25 Deuteron induced reactions, spin distributions and the surrogate method Grégory Potel Aguilar (NSCL, LLNL) Filomena Nunes (NSCL) Ian Thompson (LLNL) Varenna, June 17th
More informationInclusive deuteron induced reactions
Seattle, March 28th 217 slide 1/9 Inclusive deuteron induced reactions Grégory Potel Aguilar (FRIB/NSCL) Seattle, March 28th 217 (d, p) reactions: a probe for neutron nucleus interactions Seattle, March
More informationFusion of light halo nuclei
Fusion of light halo nuclei Alinka Lépine-Szily Instituto de Física-Universidade de São Paulo, São Paulo, Brazil 1111118th 118th Intn Few-Body Problems in PhysIcs 8th International IUPAP Conference on
More informationStatus of deuteron stripping reaction theories
Status of deuteron stripping reaction theories Pang Danyang School of Physics and Nuclear Energy Engineering, Beihang University, Beijing November 9, 2015 DY Pang Outline 1 Current/Popular models for (d,
More informationProblems in deuteron stripping reaction theories
Problems in deuteron stripping reaction theories DY Pang School of Physics and Nuclear Energy Engineering, Beihang University, Beijing October 7, 2016 Topics: Some history of the study of deuteron stripping
More informationDeuteron induced reactions
INT, March 2015 slide 1/23 Deuteron induced reactions Grégory Potel Aguilar (NSCL, LLNL) Filomena Nunes (NSCL) Ian Thompson (LLNL) INT, March 2015 Introduction NT, March 2015 slide 2/23 We present a formalism
More informationThe many facets of breakup reactions with exotic beams
Angela Bonaccorso The many facets of breakup reactions with exotic beams G Blanchon, DM Brink, F Carstoiu, A Garcia-Camacho, R Kumar, JMargueron, N Vinh Mau JAPAN-ITALY EFES Workshop on Correlations in
More informationLow-energy reactions involving halo nuclei: a microscopic version of CDCC
Low-energy reactions involving halo nuclei: a microscopic version of CDCC P. Descouvemont Université Libre de Bruxelles, Belgium In collaboration with M.S. Hussein (USP) E.C. Pinilla (ULB) J. Grineviciute
More informationUniversidad de Sevilla
Understanding reactions induced by 6 He at energies around the Coulomb barrier Antonio M. Moro Universidad de Sevilla Discussion session at CEA/Saclay workshop CEA Saclay February 29 / 5 The 6 He nucleus
More informationTwo neutron transfer in Sn isotopes
Kyoto, October 24th, 2011 slide 1/21 Two neutron transfer in Sn isotopes Grégory Potel Aguilar (Sevilla) Andrea Idini (Milano) Francisco Barranco Paulano (Sevilla) Enrico Vigezzi (Milano) Francesco Marini
More informationThree- and four-particle scattering
Three- and four-particle scattering A. Deltuva Centro de Física Nuclear da Universidade de Lisboa Few-particle scattering Three-particle scattering equations Three-nucleon system Three-body direct nuclear
More informationTheory of Nuclear reactions. Scattering theory: multi-channel!
Theory of Nuclear reactions Scattering theory: multi-channel! 58 Multichannel coupled equations t! R x p! within the same partition, the Schrodinger equations becomes a coupled equation:! Integrated channel
More informationNuclear Reaction Theory
Nuclear Reaction Theory Antonio M. Moro Universidad de Sevilla, Spain UK Nuclear Physics Summer School Belfast, 18th-21st August 2017 Table of contents I 1 Introduction 2 Weakly-bound vs. normal nuclei
More informationnuclear states nuclear stability
nuclear states 1 nuclear stability 2 1 nuclear chart 3 nuclear reactions Important concepts: projectile (A) target (B) residual nuclei (C+D) q-value of a reaction Notations for the reaction B(A,C)D A+B
More informationDirect reactions at low energies: Part II Interactions and couplings
Direct reactions at low energies: Part II Interactions and couplings cole Juliot Curie 2012, Fréjus, France 30th September 5th October 2012 Jeff Tostevin, NSCL, MSU, ast Lansing, MI and Department of Physics,
More informationPhysics of neutron-rich nuclei
Physics of neutron-rich nuclei Nuclear Physics: developed for stable nuclei (until the mid 1980 s) saturation, radii, binding energy, magic numbers and independent particle. Physics of neutron-rich nuclei
More informationIndirect Methods in Nuclear Astrophysics
Indirect Methods in Nuclear Astrophysics 1. Introduction 2. Reaction rates and energy scales 3. Motivation for indirect methods 4. Brief description of some of the methods 5. Nuclear Reaction preliminaries
More informationCrawling Towards a (more) complete description of deuteron-induced reactions
Crawling Towards a (more) complete description of deuteron-induced reactions B. V. Carlson 1, R. Capote 2 and M. Sin 3 1 Instituto Tecnológico de Aeronáutica, São José dos Campos SP, Brazil 2 NAPC-Nuclear
More informationHeavy-ion sub-barrier fusion reactions: a sensitive tool to probe nuclear structure
Heavy-ion sub-barrier fusion reactions: a sensitive tool to probe nuclear structure Kouichi Hagino Tohoku University, Sendai, Japan 1. Introduction: heavy-ion fusion reactions 2. Fusion and Quasi-elastic
More informationExploring contributions from incomplete fusion in 6,7 Li+ 209 Bi and 6,7 Li+ 198 Pt reactions
Exploring contributions from incomplete fusion in 6,7 Li+ 209 Bi and 6,7 Li+ 98 Pt reactions V. V. Parkar, V. Jha, and S. Kailas,2 Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai - 400085,
More informationCálculos para la interpretación de experimentos de reacciones nucleares con núcleos exóticos (CIERNEX)
Cálculos para la interpretación de experimentos de reacciones nucleares con núcleos exóticos (CIERNEX) Calculations for the interpretation of nuclear reactions experiments with exotic nuclei (FPA2009-07653)
More informationReaction dynamics for fusion of weakly-bound nuclei
Progress of Theoretical Physics Supplement 1 Reaction dynamics for fusion of weakly-bound nuclei Kouichi Hagino 1 and Andrea Vitturi 2 1 Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto
More informationBreakup of weakly bound nuclei and its influence on fusion. Paulo R. S. Gomes Univ. Fed. Fluminense (UFF), Niteroi, Brazil
Breakup of weakly bound nuclei and its influence on fusion Paulo R. S. Gomes Univ. Fed. Fluminense (UFF), Niteroi, Brazil Forum Brasil-JINR Dubna, June, 2015 For a comprehensive review of this subject
More informationNuclear Direct Reactions to Continuum 4
Nuclear Direct Reactions to Continuum 4 How to get Nuclear Structure Information Munetake ICHIMURA (RNC) VII. Response Function 1. Response Function and Polarization Propagator 2. Mean Field Approximation
More informationEikonal method for halo nuclei
Eikonal method for halo nuclei E. C. Pinilla, P. Descouvemont and D. Baye Université Libre de Bruxelles, Brussels, Belgium 1. Motivation 2. Introduction 3. Four-body eikonal method Elastic scattering 9
More informationarxiv:nucl-ex/ v1 21 Jun 2001
Elastic scattering and breakup of 17 F at 10 MeV/nucleon arxiv:nucl-ex/0106019v1 21 Jun 2001 J. F. Liang 1, J. R. Beene 1, H. Esbensen 2, A. Galindo-Uribarri 1, J. Gomez del Campo 1, C. J. Gross 1,3, M.
More informationTransfer reactions to probe structure of weakly bound 6 He, 7 Li around the Coulomb barrier. Aradhana Shrivastava Bhabha Atomic Research Centre, India
Transfer reactions to probe structure of weakly bound 6 He, 7 Li around the Coulomb barrier Aradhana Shrivastava Bhabha Atomic Research Centre, India Transfer Reactions with weakly bound nucleon / cluster
More informationExtracting spectroscopic information from ( 18 O, 16 O) two-neutron transfer reactions. Manuela Cavallaro INFN -LNS (Italy)
Extracting spectroscopic information from ( 18 O, 16 O) two-neutron transfer reactions Manuela Cavallaro INFN -LNS (Italy) Direct transfer reactions Select specific degrees of freedom in the complex many-body
More informationTheory Challenges for describing Nuclear Reactions
Theory Challenges for describing Nuclear Reactions Ch. Elster 06/20/2014 Supported by: U.S. Department of Energy Astrophysics: Stellar Evolution Nuclear Physics: Nuclear Synthesis Indirect Methods: Nuclear
More informationLinking nuclear reactions and nuclear structure to on the way to the drip lines
Linking nuclear reactions and nuclear structure to on the way to the drip lines DREB18 6/5/2018 Motivation Green s functions/propagator method Wim Dickhoff Bob Charity Lee Sobotka Hossein Mahzoon (Ph.D.2015)
More informationDi-neutron correlation in Borromean nuclei
Di-neutron correlation in Borromean nuclei K. Hagino (Tohoku University) H. Sagawa (University of Aizu) 11 Li, 6 He What is the spatial structure of valence neutrons? Compact? Or Extended? 1. Introduction:
More informationTwo-particle transfer and pairing correlations (for both T-0 and T=1): interplay of reaction mechanism and structure properties
Two-particle transfer and pairing correlations (for both T-0 and T=1): interplay of reaction mechanism and structure properties Andrea Vitturi and Jose Antonio Lay (Padova, Catania, Sevilla) ECT*, September
More informationWhy the complete fusion of weakly bound nuclei is enhanced at sub-barrier energies and suppressed above the barrier?
Journal of Physics: Conference Series Why the complete fusion of weakly bound nuclei is enhanced at sub-barrier energies and suppressed above the barrier? To cite this article: P R S Gomes et al 2013 J.
More informationNuclear and Coulomb excitations of the pygmy dipole resonances
SPES Legnaro, 5-7 ovember uclear and oulomb excitations of the pygmy dipole resonances M. V. Andrés a), F. tara b), D. Gambacurta b), A. Vitturi c), E. G. Lanza b) a)departamento de FAM, Universidad de
More informationKnockout beyond the drip line
Knockout beyond the drip line Angela Bonaccorso 2 INFN Sezione di Pisa Angela Bonaccorso 3 (INFN Sezione di Pisa) Knockout beyond the drip line Sinaia2014 1 / 31 2 In collaboration with R. J. Charity,
More informationStudy of Neutron-Proton Correlation & 3N-Force in 12 C
Study of Neutron-Proton Correlation & 3N-Force in C Outline: 1. Interesting physics on np-correlations in C 2. Probe: Two-nucleon knockout reaction Partial cross section and P // measurements 3. Experimental
More informationNucleon knockout reactions Status and open questions. Alexandra Gade INT workshop, August 2011
Nucleon knockout reactions Status and open questions Alexandra Gade INT workshop, August 2011 National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy Michigan State University,
More informationScattering theory I: single channel differential forms
TALENT: theory for exploring nuclear reaction experiments Scattering theory I: single channel differential forms Filomena Nunes Michigan State University 1 equations of motion laboratory Center of mass
More informationNuclear Reactions - Experiment I
Nuclear Reactions - Experiment I Calem R. Hoffman Physics Division, Argonne National Laboratory Exotic Beam Summer School 2014 ORNL Outline Overview of nuclear reactions Transfer Observed reactions and
More informationMolecular Structures in Slow Nuclear Collisions
Molecular Structures in Slow Nuclear Collisions ALEXIS DIAZ-TORRES European Centre for Theoretical Studies in Nuclear Physics and Related Areas Trento, Italy Nuclear Structure Reaction Dynamics FAIR Nuclear
More informationAlpha inelastic scattering and cluster structures in 24 Mg. Takahiro KAWABATA Department of Physics, Kyoto University
Alpha inelastic scattering and cluster structures in 24 Mg Takahiro KAWABATA Department of Physics, Kyoto University Introduction Contents Alpha cluster structure in light nuclei. Alpha condensed states.
More informationScattering of He on Pb at energies around the Coulomb barrier
Scattering of on Pb at energies around the Coulomb barrier 20 G. Marquínez-Durán1, I. Martel1, K. Rusek2, A.M. Sánchez-Benítez1, L. Acosta3 1 University of Huelva, Spain A. Soltan Institute for Nuclear
More informationDissociation of deuteron, 6 He and 11 Be from Coulomb dissociation reaction cross-section
PRAMANA c Indian Academy of Sciences Vol. 70, No. 5 journal of May 2008 physics pp. 949 953 Dissociation of deuteron, 6 He and 11 Be from Coulomb dissociation reaction cross-section RAMENDRA NATH MAJUMDAR
More informationProbing surface diffuseness of nucleus-nucleus potential with quasielastic scattering at deep sub-barrier energies
PHYSICAL REVIEW C 73, 034607 (2006) Probing surface diffuseness of nucleus-nucleus potential with quasielastic scattering at deep sub-barrier energies K. Washiyama, K. Hagino, and M. Dasgupta 2 Department
More informationInvestigations of reaction dynamics and structure of exotic nuclei: fusion, haloes and exotic decays
Investigations of reaction dynamics and structure of exotic nuclei: fusion, haloes and exotic decays Ismael Martel, J.A. Sánchez-Galán, R. Jímenez-Naharro, R. Berjillos, A. Bergillos, J. Dueñas, J.L. Flores,
More informationDirect reactions methodologies for use at fragmentation beam energies
1 Direct reactions methodologies for use at fragmentation beam energies TU Munich, February 14 th 2008 Jeff Tostevin, Department of Physics Faculty of Engineering and Physical Sciences University of Surrey,
More informationAsymmetry dependence of Gogny-based optical potential
Asymmetry dependence of Gogny-based optical potential G. Blanchon, R. Bernard, M. Dupuis, H. F. Arellano CEA,DAM,DIF F-9297 Arpajon, France March 3-6 27, INT, Seattle, USA / 32 Microscopic ingredients
More informationarxiv: v2 [nucl-th] 27 Jun 2014
Continuum-Discretized Coupled-Channels calculations with core excitation R. de Diego Departamento de FAMN, Facultad de Física, Universidad de Sevilla, Apdo. 165, E-418 Sevilla, Spain Centro de Física Nuclear,
More informationarxiv:nucl-th/ v1 23 Mar 2004
arxiv:nucl-th/0403070v1 23 Mar 2004 A SEMICLASSICAL APPROACH TO FUSION REACTIONS M. S. HUSSEIN Instituto de Física, Universidade de São Paulo CP 66318, 05389-970, São Paulo SP, Brazil E-mail: hussein@fma.if.usp.br
More informationScattering of halo nuclei on heavy targets at energies around the Coulomb barrier
EPJ Web of Conferences 163, 45 (217) DOI: 1.151/epjconf/21716345 Scattering of halo nuclei on heavy targets at energies around the Coulomb barrier The case of 11 Be on 197 Au V. Pesudo 1,2,, M.J.G. Borge
More informationStructure of halo nuclei and transfer reactions
Structure of halo nuclei and transfer reactions F. Barranco and G. Potel Sevilla University R.A. Broglia Milano University and INFN The Niels Bohr Institute, Copenhagen E. Vigezzi INFN Milano DCEN 2011,
More informationNucleon Transfer within Distorted Wave Born Approximation
Nucleon Transfer within Distorted Wave Born Approximation N R V Project Flerov Laboratory of Nuclear Reactions, 141980, Dubna, Russian Federation Abstract. The finite range Distorted Wave Born Approximation
More informationMany-Body Resonances of Nuclear Cluster Systems and Unstable Nuclei
Many-Body Resonances of Nuclear Cluster Systems and Unstable Nuclei Contents of the lecture 1. Resonances and complex scaling method 2. Many-body resonances of He-isotopes and their mirror nuclei 3. Coulomb
More informationTheory and Calculation of Two-nucleon Transfer Reactions
Theory and Calculation of Two-nucleon Transfer Reactions Ian Thompson Nuclear Theory and Modeling, L-414, P. O. Box 808, Livermore, CA 94551! This work performed under the auspices of the U.S. Department
More informationReaction Dynamics for Light Dripline Nuclei
Reaction Dynamics for Light Dripline Nuclei Phys. Scr. T152 (2013) 014019 Angela Bonaccorso INFN Sezione di Pisa Advances in Radioactive Isotope Science(ARIS2014) Tokyo, Japan, June 1th- 6th, 2014 Angela
More informationNON-LOCAL OPTICAL POTENTIALS
NON-LOCAL OPTICAL POTENTIALS Why we should care Filomena Nunes Michigan State University INT, 16 Mar 2017 Supported by: NNSA, NSF, DOE Reaction theory for heavy exotic nuclei 6 Li(d,p) 7 Li 132 Sn(d,p)
More informationSub-barrier fusion enhancement due to neutron transfer
Sub-barrier fusion enhancement due to neutron transfer V. I. Zagrebaev Flerov Laboratory of Nuclear Reaction, JINR, Dubna, Moscow Region, Russia Received 6 March 2003; published 25 June 2003 From the analysis
More informationCorrelation functions and characterization of emitting sources. A. Chbihi GANIL
Correlation functions and characterization of emitting sources A. Chbihi GANIL Outline Intensity interferometry Directional correlations : size-lifetime Angle-averaged correlation functions Imaging, model
More informationEnergy dependence of breakup cross sections of the halo nucleus 8 B and effective interactions
PHYSICAL REVIEW C VOLUME 57, NUMBER 1 JANUARY 1998 Energy dependence of breakup cross sections of the halo nucleus 8 B and effective interactions C. A. Bertulani * Instituto de Física, Universidade Federal
More informationNuclear Reactions Part III Grigory Rogachev
THE FLORIDA STATE UNIVERSITY National Superconducting Cyclotron Facility Nuclear Reactions Part III Grigory Rogachev Outline Introduction. Resonances in atomic nuclei Role of resonances in era of exotic
More informationGoing beyond the traditional nuclear shell model with the study of neutron-rich (radioactive) light nuclei
Going beyond the traditional nuclear shell model with the study of neutron-rich (radioactive) light nuclei Fred SARAZIN Colorado School of Mines SORRY Overview What is low-energy nuclear physics? Stable
More informationReaction Cross Sections and Nucleon Density Distributions of Light Nuclei. Maya Takechi
Reaction Cross Sections and Nucleon Density Distributions of Light Nuclei Maya Takechi Collaborators Introduction Sizes of Unstable Nuclei? ~ Measurements of σ R ~ σ R σ tot σ el ρ r ρ Glauber Calculation
More informationMicroscopic (TDHF and DC-TDHF) study of heavy-ion fusion and capture reactions with neutron-rich nuclei
Microscopic (TDHF and DC-TDHF) study of heavy-ion fusion and capture reactions with neutron-rich nuclei INT Program INT- 11-2d Interfaces between structure and reactions for rare isotopes and nuclear astrophysics
More informationSunday Monday Thursday. Friday
Nuclear Structure III experiment Sunday Monday Thursday Low-lying excited states Collectivity and the single-particle degrees of freedom Collectivity studied in Coulomb excitation Direct reactions to study
More information(Multi-)nucleon transfer in the reactions 16 O, 3 32 S Pb
Journal of Physics: Conference Series Related content (Multi-)nucleon transfer in the reactions 16 O, 3 32 S + 208 Pb To cite this article: M Evers et al 2013 J. Phys.: Conf. Ser. 420 012129 - Quantum
More informationThree-cluster dynamics within an ab initio framework
Three-cluster dynamics within an ab initio framework Universality in Few-Body Systems: Theoretical Challenges and New Directions INT 14-1, March 26, 2014 S. Quaglioni Collaborators: C. Romero-Redondo (TRIUMF)
More informationFour-nucleon scattering
Four-nucleon scattering A. Deltuva Centro de Física Nuclear da Universidade de Lisboa Hamiltonian H + i> j 4N scattering v i j 1 v 12 4 3 2 Wave function: Schrödinger equation (HH + Kohn VP) [M. Viviani,
More informationarxiv:nucl-th/ v1 4 May 2005
Special Relativity and Reactions with Unstable Nuclei C.A. Bertulani Department of Physics, University of Arizona, Tucson, Arizona 85721 arxiv:nucl-th/0505015 v1 4 May 2005 Abstract. Dynamical relativistic
More informationDetermining Two Reaction Rates in Novae using the ANCs Technique. Tariq Al-Abdullah Hashemite University, Jordan Russbach, March 2011
Determining Two Reaction Rates in Novae using the ANCs Technique Tariq Al-Abdullah Hashemite University, Jordan Russbach, March 2011 Main Points Synthesis of 22Na and 18F in ONe novae. Asymptotic Normalization
More informationProbing Nuclear Structure of Medium and Heavy Unstable Nuclei and Processes with Helium Isotopes
Probing Nuclear Structure of Medium and Heavy Unstable Nuclei and Processes with Helium Isotopes M.K. Gaidarov Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia 1784,
More informationThe astrophysical reaction 8 Li(n,γ) 9 Li from measurements by reverse kinematics
J. Phys. G: Nucl. Part. Phys. 25 (1999) 1959 1963. Printed in the UK PII: S0954-3899(99)00382-5 The astrophysical reaction 8 Li(n,γ) 9 Li from measurements by reverse kinematics Carlos A Bertulani Instituto
More informationHeavy-ion fusion reactions for superheavy elements Kouichi Hagino
Heavy-ion fusion reactions for superheavy elements Kouichi Hagino Tohoku University, Sendai, Japan 1. H.I. sub-barrier fusion reactions 2. Coupled-channels approach and barrier distributions 3. Application
More informationResonance scattering and α- transfer reactions for nuclear astrophysics.
Resonance scattering and α- transfer reactions for nuclear astrophysics. Grigory Rogachev Outline Studying resonances using resonance scattering Studying resonances using transfer reactions Resonances
More informationHe+ 6,7 Li and 6 He+ 12 C reactions. Matko Milin Ruđer Bošković Institute Zagreb, Croatia
6 He+ 6,7 Li and 6 He+ 12 C reactions Matko Milin Ruđer Bošković Institute Zagreb, Croatia introduction experimental details elastic scattering transfer reactions sequential decay reactions quasi-free
More informationStudy of the break-up channel in 11 Li+ 208 Pb collisions at energies around the Coulomb barrier
Journal of Physics: Conference Series OPEN ACCESS Study of the break-up channel in 11 Li+ 208 Pb collisions at energies around the Coulomb barrier To cite this article: J P Fernández-García et al 2014
More informationCoulomb breakup of light composite nuclei. Abstract
Coulomb breakup of light composite nuclei J.A. Tostevin, S. Rugmai and R.C. Johnson, 1 H. Okamura, S. Ishida[ ], N. Sakamoto[ ], H. Otsu[ ], T. Uesaka[ ], T. Wakasa[ ] and H. Sakai, 2 T. Niizeki, H. Toyokawa[
More informationPhysics of Radioactive Beams 1 Chapter 3 Break-up reactions and momentum distributions
Physics of Radioactive Beams 1 Chapter 3 Break-up reactions and momentum distributions Carlos A. Bertulani, Texas A&M University-Commerce, TX 75429, USA 1 These notes consist of a series of lectures presented
More informationStrengths and limitations of the surrogate reaction method to access neutron-induced cross sections of actinides
Strengths and limitations of the surrogate reaction method to access neutron-induced cross sections of actinides P. Marini, Q. Ducasse, B. Jurado, M. Aiche, L. Mathieu, G. Barreau, S. Czajkowski, I. Tsekhanovic
More informationTowards Faddeev-AGS equations in a Coulomb basis in momentum space
Towards Faddeev-AGS equations in a Coulomb basis in momentum space V. Eremenko 1,5 L. Hlophe 1 Ch. Elster 1 F. M. Nunes 2 I. J. Thompson 3 G. Arbanas 4 J. E. Escher 3 TORUS Collaboration (http://reactiontheory.org)
More informationHow to do C.C. calculations if there is only limited experimental information on intrinsic degrees of freedom?
New approach to coupled-channels calculations for heavy-ion fusion reactions around the Coulomb barrier Kouichi Hagino Tohoku University, Sendai, Japan 1. Introduction - H.I. sub-barrier fusion reactions
More informationSubbarrier fusion of carbon isotopes ~ from resonance structure to fusion oscillations ~
Subbarrier fusion of carbon isotopes ~ from resonance structure to fusion oscillations ~ Kouichi Hagino, Tohoku University Neil Rowley, IPN Orsay 1. Introduction: 12 C + 12 C fusion 2. Molecular resonances
More informationVariatonal description of continuum states
Variatonal description of continuum states A. Kievsky INFN, Sezione di Pisa (Italy) Collaborators Three-body systems in reactions with rare isotopes ECT*, October 2016 M. Viviani, L.E. Marcucci - INFN
More informationMany-Body Theory of the Electroweak Nuclear Response
Many-Body Theory of the Electroweak Nuclear Response Omar Benhar INFN and Department of Physics Università La Sapienza, I-00185 Roma Collaborators N. Farina, D. Meloni, H. Nakamura, M. Sakuda, R. Seki
More informationExotic Nuclei. Ingo Wiedenhöver, National Nuclear Physics Summer School 7/16/2007 Tallahassee, Florida
Exotic Nuclei Outline Shell Structure Collective Structure: Experimental methods: Coulomb excitation Knockout reactions Magic Numbers in exotic nuclei New modes of collectivity? Ingo Wiedenhöver, National
More informationDIRECT REACTIONS WITH EXOTIC NUCLEI
Annu. Rev. Nucl. Part. Sci. 2003. 53:219 61 doi: 10.1146/annurev.nucl.53.041002.110406 Copyright c 2003 by Annual Reviews. All rights reserved DIRECT REACTIONS WITH EXOTIC NUCLEI P.G. Hansen 1 and J.A.
More information(Inverse-kinematics) fission investigations in active targets
! (Inverse-kinematics) fission investigations in active targets 1. First experiment performed in GANIL.! 2. Exploring exotic fissioning systems with ACTAR TPC. C. Rodríguez-Tajes et al., rodriguez@ganil.fr!
More informationRPA CORRECTION TO THE OPTICAL POTENTIAL
RPA CORRECTION TO THE OPTICAL POTENTIAL Guillaume Blanchon, Marc Dupuis, Hugo Arellano and Nicole Vinh Mau. CEA, DAM, DIF CNR*11, 22/09/11, Prague. Parametrized potentials are very useful but only in the
More informationTowards a universal nuclear structure model. Xavier Roca-Maza Congresso del Dipartimento di Fisica Milano, June 28 29, 2017
Towards a universal nuclear structure model Xavier Roca-Maza Congresso del Dipartimento di Fisica Milano, June 28 29, 217 1 Table of contents: Brief presentation of the group Motivation Model and selected
More informationFrom Halo EFT to Reaction EFT
SOTANCP 4 Galveston 2018 From Halo EFT to Reaction EFT Marcel Schmidt Technische Universität Darmstadt and University of Tennessee, Knoxville with H.-W. Hammer (TUD) and L. Platter (UTK) May 15, 2018 May
More informationSingle-neutron removal reactions from 15 C and 11 Be: Deviations from the eikonal approximation
PHYSICAL REVIEW C 66, 024607 2002 Single-neutron removal reactions from 15 C and 11 Be: Deviations from the eikonal approximation J. A. Tostevin, 1 D. Bazin, 2 B. A. Brown, 2,3 T. Glasmacher, 2,3 P. G.
More informationMicroscopic nuclear form factor for the Pygmy Dipole Resonance
Microscopic nuclear form factor for the Pygmy Dipole Resonance M.V. Andrés - Departamento de FAMN, Universidad de Sevilla, Spain F. Catara - INFN-Sezione di Catania, Italy A. Vitturi - Dipartimento di
More informationSOME ASPECTS OF TRANSFER REACTIONS IN LIGHT AND HEAVY ION COLLISIONS
Vol. 44 (2013) ACTA PHYSICA POLONICA B No 3 SOME ASPECTS OF TRANSFER REACTIONS IN LIGHT AND HEAVY ION COLLISIONS Giovanni Pollarolo Dipartimento di Fisica, Università di Torino and INFN, Sez. di Torino
More information