Faddeev-Yakubovsky Technique for Weakly Bound Systems
|
|
- Cuthbert Weaver
- 6 years ago
- Views:
Transcription
1 Faddeev-Yakubovsky Technique for Weakly Bound Systems Instituto de Física Teórica, Universidade Estadual Paulista, 4-7, São Paulo, SP, Brazil M. T. Yamashita Instituto de Física Teórica, Universidade Estadual Paulista, 4-7, São Paulo, SP, Brazil Lauro Tomio Instituto de Física Teórica, Universidade Estadual Paulista, 4-7, São Paulo, SP, Brazil Instituto de Física, Universidade Federal Fluminense, 4-46, Niterói, RJ, Brazil A. Delfino Instituto de Física, Universidade Federal Fluminense, 4-46, Niterói, RJ, Brazil T. Frederico Instituto Tecnológico de Aeronáutica, DCTA, 8-9, São José dos Campos, SP, Brazil The Faddeev-Yakubovsky formalism for the study of three- and four-boson bound states have been derived in a partial wave representation for separable potentials and by considering only the s-wave channel contribution. In order to be able to study the weakly three- and four-boson bound states the obtained formalism is simplified for a zero range interaction and the integral equations are regularized by a subtraction technique. PoSXXXIV BWNP4 XXXIV edition of the Brazilian Workshop on Nuclear Physics, 5- June Foz do Iguaçu, Parana state, Brasil Speaker. c Copyright owned by the authors under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
2 . Introduction Nature shows the existence of weakly bound systems in different sectors, ranging from atomic to nuclear physics. Few-body systems with large scattering length exhibit universal features, which are independent of the details of the interaction, and thus are common to nuclear and atomic systems. Very different methods are used to study the properties of few-body systems, from Faddeev- Yakubovsky method []-[] to diagonalization methods that rely on an expansion of the wave functions in a complete basis set, like e.g. hyperspherical harmonics and no core shell model. In this paper we present the Faddeev-Yakubovsky formalism to study the three- and four-boson bound states in momentum space. To show the efficiency and accuracy of the method, we have recently investigated the three- and four-boson weakly bound states in the unitary limit for zero two-body binding and we have obtained a pretty complete picture of universal tetramers.. Faddeev-Yakubovsky Equations for Four-Boson Bound State In this section, we describe the Faddeev-Yakubovsky FY formalism for the bound state of four identical bosons. As shown in Eq.., in a 4B system with particles called i, j, k and l there are 8 different coordinate systems, each associated with a specific two-body partition. These chains have basically two different structures, + structure i.e., a chain in which the four-body system is subdivided into a three-body subsystem and a single particle and + i.e., subdivision of a four-body system into two two-body subsystems. Clearly, as we know from the Faddeev formalism, each three-body subsystem can also be devided into three + chains. i j + k + l i jk + l jk + i + l ki + j + l i j + l + k i jl + k jl + i + k li + j + k + ik + l + j ikl + j li + k + j kl + i + j i jkl jk + l + i jkl + i l j + k + i kl + j + i { i j + k + l i j + kl kl + i + j { ik + j + l + ik + jl jl + i + k { il + j + k il + jk jk + i + l K l K l jk,i = P i jp jk K l K l ki, j = P ikp jk K l K k i j,l = P kl K l K k jl,i = P klp i j P jk K l K k li, j = P klp ik P jk K l K j ik,l = P ikp jk P kl K l K j li,k = P ikp jk P kl P i j P jk K l K j kl,i = P ikp jk P kl P ik P jk K l K i jk,l = P i jp jk P kl K l K i l j,k = P i jp jk P kl P ik P jk K l K i kl, j = P i jp jk P kl P i j P jk K l H l H kl,i j = P ik P jl H l H ik, jl = P ik P jk H l H jl,ik = P ik P jk P ik P jl H l H il, jk = P i j P jk P ik P jl H l H jk,il = P i j P jk H l. PoSXXXIV BWNP4
3 In the following we derive the FY equations. The bound state of four identical particles which interact via pairwise forces V i j i j i j, ik, il, jk, jl and kl is given by the Schrödinger equation which reads in integral form [4, 5]: Ψ = G V i j Ψ. i< j Here the free four-body propagator is given by G = E H, and H stands for the free Hamiltonian. Introducing Yakubovsky components Ψ = ψ i j, with ψ i j = G V i j Ψ leads to the six coupled integral equations: ψ i j = G t i j ψ kl. kl i j The operator t i j describes the two-body t matrix in the two-body subsystem i j. We can rewrite Eq.. as: ψ i j = G t i j ψ ik + ψ il + ψ jk + ψ jl + ψ kl.4 Among various possibilities to decompose ψ i j into three FY components we choose the following one: K l = G t i j ψ ik + ψ jk Ki j,l k = G t i j ψ il + ψ jl H l = G t i j ψ kl.5 The FY component K l H l belongs to a + + partition. They fulfill the following relation: ψ i j = K l + K i j,l k + H l.6 It is easily seen that every ψ i j component contains two + type chains and one + type chain, therefore the total wave function Ψ contains twelve different + type chains and six + type chains. So altogether one has eighteen FY components. If we consider identical particles here bosons, since we are omitting spin, the four-body wave function Ψ has to be totally symmetric. As a consequence all twelve components of + type are identical in their functional form and only the particles are permuted. The same is true for the six components of + type. Thus it is sufficient to consider only two independent FY components corresponding to the + and + partitions, PoSXXXIV BWNP4 K = K l H = H l.7 After the straightforward derivation the 8 coupled FY components shrink to two coupled FY equations: ] K l = G t i j P[ + P kl K l + H l ] H l = G t i j P[ + P kl K l + H l.8
4 where P i j is the permutation operator between the i th and j th particle, and P = P i j P jk + P ik P jk P = P ik P jl.9 The total four-body wave function is then given as: [ ] Ψ = + P + P kl P + P + P kl K l + H l = + + PP kl + P K l + + P + P H l. The symmetry property of K under exchange of particles i and j, and H under separate exchanges of particles i, j and k,l guarantee that Ψ is totally symmetric.. Representation of Faddeev-Yakubovsky Equations in Momentum Space In this section for simplification of notation, we use the labels,, and 4 for particles. So, we can rewrite Eq..8 as: ] K = G t P[ + P 4 K + H ] H = G t P[ + P 4 K + H. In order to solve the coupled Eqs.. in momentum space one should project them into standard sets of Jacobi momenta, corresponding to both + u u u and + v v v chains. The standard Jacobi momenta for 4B system are defined as: u = k k u = k k + k u = 4 k 4. k + k + k PoSXXXIV BWNP4 v = k k v = k + k k + k 4 v = k k 4. Since we are going to study the weakly 4B bound state and we just consider the s-wave channel contribution, we introduce the projection operators corresponding to each Jacobi momenta set in partial wave representation as: u = u u u v = v v v.4 4
5 where the projection operators follow the completeness relation: D A A A =.5 where A indicates each one of u and v vectors and D A A da A da A da. Clearly the projection operator u is adequate to expand FY component K and correspondingly the projection operator v is adequate for H. Let us now represent the coupled equations, Eq.., with respect to the projection operators which have been introduced in Eq..4: u K = u G tp + P 4 K + u G tp H v H = v G t P + P 4 K + v G t P H.6 It is convenient to insert again the completeness relations between permutation operators, it results: u K = D u u G tp u u K + D u D u u G tp u u P 4 u u K + D u D v u G tp u u v v H v H = D v D u v G t P v v u u K + D v D u D u v G t P v v u u P 4 u u K + D v v G t P v v H.7 For evaluating the coupled equations, Eq..7, we need to evaluate the following matrix elements: u G tp u.8 v G t P v.9 u P 4 u, u P 4 u. u v, v u. PoSXXXIV BWNP4 For evaluating the first term, Eq..8, we should insert again a completeness relation between the two-body t matrix operator and the permutation operator P as: u G tp u = G u,u,u D u u t u u P u. where the matrix elements of the two-body t matrix for a separable potential and permutation operator P are evaluated separately as: u t u = δ u u δ u u 4π χu χu τε u u ε = E u 4m u m. 5
6 u P u = Π u,u = Π u,u = δ u Π u,u dx u u + u = 4 u + u = 4 u u δ u Π u,u + u + u u x + u + u u u δ u u u x.4 For evaluation the matrix elements of permutation operator P we have used the relation between Jacobi momenta in different two-body subsystems, 4,, 4 and, 4. Inserting Eqs.. and.4 into Eq.. leads to: u G tp u = 4π G u,u,u χu τε δ dx χ Π u,u u Π u,u Representation of the second term, Eq..9, follows the similar steps: u δ u u u.5 v G t P v = G v,v,v D v v t v v P v.6 The matrix elements of the two-body t matrix and the permutation operator P are evaluated as: v t v = δ v v v ε = E v m v m v P v = δ v v v δ v v v δ v v v Inserting Eqs..7 and.8 into Eq..6 leads to: 4π χv χv τε δ v v v v G t P v = 4π G v,v,v χv χv τε δ v v v δ v v v For the evaluation of the third term, Eq.., we should use the relation between Jacobi momenta in different chains,4 and 4,, which leads to: u P 4 u = δ u u δ u u dx Π u,u,x δ u Π u,u,x u u Π u,u,x = u u = 9 u u u u x Π u,u,x = u = u + 9 u u u x. u PoSXXXIV BWNP4 6
7 And finally for evaluation the fourth terms, Eq.., we should use the relation between Jacobi momenta in two naturally different chains,4 and,4, which leads to: u v = δ v u δ v v dx Π 4 u,u,x δ v Π 5 u,u,x v v Π 4 u,u,x = u + u = 4 u u + u u x Π u,u,x = u u = u u 4 u u x. v u = δ u v u Π 6 v,v,x = v + v = Π 7 v,v,x = v v = δ u Π 6 v,v dx u v + v + v v x,x δ u Π 7 v,v,x v + 4 v v v x. Finally inserting Eqs..5,.9,. and. in Eq..7 yields: K u,u,u = 4π G u,u,u χu τε [ du u dx χ Π u,u K Π u,u,u,u + + du u du u dx dx dx χ Π u,u K Π u,u,π u,u,x,π u,u,x dx χ Π u,u H Π u,u,π4 u,u,x,π 5 u,u,x ] u PoSXXXIV BWNP4 H v,v,v = 4π G v,v,v χv τε [ dv v dx χ v K v,π 6 v,v,x,π 7 v,v,x + dv v χ v H v,v,v ]. By considering the following definitions of Yakubovsky components: K u,u,u = G u,u,u χu K u,u H v,v,v = G v,v,v χv H v,v.4 7
8 the final form of coupled Yakubovsky integral equations can be obtained as: K u,u = 4π τε [ du u + du u dx χ Π u,u χ Π u,u G Π u,u,u,u K u,u dx dx χ Π u,u χ Π u,u Π u,u,x,π u,u,x G Π u,u,π u,u,x,π u,u,x K + du u dx dx χ Π u,u χ Π u,u G Π u,u,π4 u,u,x,π 5 u,u,x H Π 4 u,u,x,π 5 u,u,x ] H v,v = 4π τε [ dv v + dx χ v χ v G v,π 6 v,v,x,π 7 v,v,x K 4. Zero-range interaction Π 6 v,v,x,π 7 v,v,x dv v χ v χ v G v,v,v H v,v ].5 The momentum space representation of a zero-range interaction V r = π λ δr, characterized by the two-body coupling constant λ is as: p V p = λ p χ χ p ; p χ χp = d r e ip.r δr =. 4. PoSXXXIV BWNP4 The two-body t-matrix, tε = χ τε χ, can be obtained by analytical solution of the inhomogeneous Lippmann-Schwinger equation as: [ τε = λ ] d p ε p 4. The coupling constant λ is fixed by one physical input, for example, the pole position of the two-body scattering amplitude at B ; λ = d p B p 4. The above value of λ, when substituted in Eq. 4., provides the cancelation of linear divergence of momentum integral and leads to renormalized two-body t-matrix as: 8
9 τε = B π ε = π a ε Coupled Yakubovsky Integral Equations for Zero-range interaction The coupled integral equations.5 can be simplified for a zero range interaction χp =. If we ignore the fourth particle, the coupled Yakubovsky integral equations can be simplified to Faddeev integral equation. The subtraction technique can be used to be able to obtain the converged results for binding energy of trimer from solution of Faddeev integral equation by using a zero range interaction. To this aim one need a three-body parameter, µ, and the regularization of the momentum integration is done through the substitution of the free three-body Green s function by a subtracted form: G = E H µ H Now, by adding the fourth particle to the three-body system, one need also to regularize the new terms which appear in presence of fourth particle in coupled Yakubovsky integral equations. To this aim one can introduce a new parameter, i.e. four-body scale µ 4, to regularize these new terms and the free four-body Green s function can be substituted by a subtracted form: G 4 = E H µ 4 H So, for regularization of the first term of coupled integral equation.5, which describe the B subsystem i jk, one can use a three-body scale and for other terms, which appear in presence of fourth particle, a new four-body scale can be used. By these considerations, he subtracted form of the Yakubovsky integral equations are given by: K u,u = 4π τε du u dx [ Π u,u,u,u K u,u G dx G 4 Π u,u,π u,u,x,π u,u,x K Π u,u,x,π u,u,x dx G 4 Π u,u,π4 u,u,x,π 5 u,u,x H Π 4 u,u,x,π 5 u,u,x ] H v,v = 4π τε [ dxg 4 dv v v,π 6 v,v,x,π 7 v,v,x K Π 6 v,v,x,π 7 v,v,x +G 4 v,v,v H v,v ] 5. PoSXXXIV BWNP4 9
10 The coupled integral equations 5. have been successfully solved for four-boson system and similar to three-boson case a scaling plot has been obtained which describe the universal tetramers [6, 7, 8]. Acknowledgments We acknowledge partial financial support from the Brazilian agencies Fundação de Amparo à Pesquisa do Estado de São Paulo and Conselho Nacional de Desenvolvimento Científico e Tecnológico. References [] W. Glöckle, The quantum mechanical few-body problem Springer, Berlin, 98. [] A. Nogga, H. Kamada, and W. Glöckle, Phys. Rev. Lett. 85, 944. [] A. Nogga, H. Kamada, W. Glöckle, and B. R. Barrett, Phys. Rev. C 65, 54. [4] and S. Bayegan, Few Body Syst. 4, 7 7. [5], L. Tomio, and S. Bayegan, Phys. Rev. C 8, 544. [6] T. Frederico, L. Tomio, A. Delfino, M.R. Hadizadeh, and M.T. Yamashita, Few Body Syst. 5, 87. [7], M. T. Yamashita, Lauro Tomio, A. Delfino, T. Frederico; Phys. Rev. Lett. 7, 54. [8], M. T. Yamashita, Lauro Tomio, A. Delfino, T. Frederico; Phys. Rev. A 85, 6. PoSXXXIV BWNP4
Three-Body Bound State Calculations by Using Three-Dimensional Low Momentum Interaction V low k
Preprint number: 6.668 Three-Body Bound State Calculations by Using Three-Dimensional Low Momentum Interaction V low k arxiv:6.668v [nucl-th Feb M. R. Hadizadeh, Institute of Nuclear and Particle Physics,
More informationEXOTIC CARBON SYSTEMS IN TWO-NEUTRON HALO THREE-BODY MODELS
International Journal of Modern Physics E Vol. 20, Supplement (20) 254 262 c World Scientific Publishing Company DOI: 0.42/S028303040335 EXOTIC CARBON SYSTEMS IN TWO-NEUTRON HALO THREE-BODY MODELS LAURO
More informationUniversality in Four-Boson Systems
Few-Body Syst (201) 5:559 568 DOI 10.1007/s00601-012-06-6 T. Frederico A. Delfino M. R. adizadeh Lauro Tomio M. T. Yamashita Universality in Four-Boson Systems Received: 0 January 2012 / Accepted: 0 May
More informationUniversality in Four-Boson Systems
Universality in Four-Boson Systems M. R. Hadizadeh INPP, Department of Physics & Astronomy, Ohio University hadizadm@ohio.edu Work done in collaboration with: M.T. Yamashita & L. Tomio (UNESP), A. Delfino
More informationScaling limit of virtual states of triatomic systems
PHYSICAL REVIEW A 66, 0570 00 Scaling limit of virtual states of triatomic systems M. T. Yamashita, 1 T. Frederico, A. Delfino, 3 and Lauro Tomio 4 1 Laboratório do Acelerador Linear, Instituto de Física,
More informationarxiv:quant-ph/ v1 5 Mar 2001
Integral equations of scattering in one dimension Vania E. Barlette 1, Marcelo M. Leite 2, and Sadhan K. Adhikari 3 1 Centro Universitário Franciscano, Rua dos Andradas 1614, 97010-032 Santa Maria, RS,
More informationarxiv: v1 [nucl-th] 31 Oct 2013
Renormalization Group Invariance in the Subtractive Renormalization Approach to the NN Interactions S. Szpigel and V. S. Timóteo arxiv:1311.61v1 [nucl-th] 31 Oct 13 Faculdade de Computação e Informática,
More informationMarcelo Takeshi Yamashita Instituto de Física Teórica IFT / UNESP
Marcelo Takeshi Yamashita yamashita@ift.unesp.br Instituto de Física Teórica IFT / UNSP M. R. Hadizadeh IFT MTY IFT A. Delfino UFF T. Frederico ITA F. F. Bellotti ITA D. S. Ventura IFT L. Tomio UFF/IFT
More informationOne-Proton Radioactivity from Spherical Nuclei
from Spherical Nuclei Centro Brasileiro de Pesquisas Físicas - CBPF/MCT, Rua Dr. Xavier Sigaud 150, 22290-180, Rio de Janeiro - RJ, Brazil. E-mail: nicke@cbpf.br S. B. Duarte Centro Brasileiro de Pesquisas
More informationFew- Systems. Selected Topics in Correlated Hyperspherical Harmonics. Body. A. Kievsky
Few-Body Systems 0, 11 16 (2003) Few- Body Systems c by Springer-Verlag 2003 Printed in Austria Selected Topics in Correlated Hyperspherical Harmonics A. Kievsky INFN and Physics Department, Universita
More informationPoS(Confinement8)147. Universality in QCD and Halo Nuclei
Helmholtz-Institut für Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, University of Bonn, Germany E-mail: hammer@itkp.uni-bonn.de Effective Field Theory (EFT) provides a powerful
More informationThe Higgs boson mass in minimal technicolor models
The Higgs boson mass in minimal technicolor models A. Doff and A. A. Natale Universidade Tecnológica Federal do Paraná - UTFPR - COMAT Via do Conhecimento Km 01, 85503-390, Pato Branco - PR, Brazil Instituto
More information2 Quantum Mechanics on a Noncommutative Plane
6 th International Workshop on Astronomy and Relativistic Astrophysics - IWARA 013 Sep. 9 - Oct. 03, 013, CBPF, Rio de Janeiro, Brazil. http://mesonpi.cat.cbpf.br/iwara SLAC econf/c13099 Physically Consistent
More informationCalculation of relativistic nucleon-nucleon potentials in three dimensions
Eur. Phys. J. A (7) 53: DOI./epja/i7-9- Regular Article Theoretical Physics THE EUROPEAN PHYSICAL JOURNAL A Calculation of relativistic nucleon-nucleon potentials in three dimensions M.R. Hadizadeh,,a
More informationPoincaré Invariant Calculation of the Three-Body Bound State Energy and Wave Function
Poincaré Invariant Calculation of the Three-Body Bound State Energy and Wave Function q [fm ] 8 6 4 M. R. Hadizadeh, Ch. Elster and W. N. Polyzou log Ψ nr 8 7 7 7 3 3 7 7 3 3 4 6 8 log Ψ r p [fm ] 8 4
More informationMuon Capture With Improved Chiral Forces
, Jacek Golak, Kacper Topolnicki, Henryk Witała M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059 Kraków, Poland E-mail: roman.skibinski@uj.edu.pl Muon capture on the 2 H, 3 H and
More informationRelaxation algorithm to hyperbolic states in Gross Pitaevskii equation
Physics Letters A 359 (2006) 339 344 www.elsevier.com/locate/pla Relaxation algorithm to hyperbolic states in Gross Pitaevskii equation Marijana Brtka a, Arnaldo Gammal a,, Lauro Tomio b a Instituto de
More informationNNLO antenna subtraction with two hadronic initial states
NNLO antenna subtraction with two hadronic initial states Institut für Theoretische Physik, Universität Zürich, Winterthurerstr. 190, 8057 Zürich, Switzerland E-mail: radja@physik.uzh.ch Aude Gehrmann-De
More informationBFT quantization of chiral-boson theories
BFT quantization of chiral-boson theories IF-UFRJ-20/94 arxiv:hep-th/9408038v1 5 Aug 1994 R. Amorim and J. Barcelos-Neto Instituto de Física Universidade Federal do Rio de Janeiro RJ 21945-970 - Caixa
More informationarxiv:hep-th/ v1 13 Feb 1992
Chiral Bosons Through Linear Constraints H. O. Girotti, M. Gomes and V. O. Rivelles Instituto de Física, Universidade de São Paulo, Caixa Postal 2516, 1498 São Paulo, SP, Brazil. arxiv:hep-th/92243v1 13
More informationAlpha particles in effective field theory
Alpha particles in effective field theory. aniu itation: AIP onference Proceedings 625, 77 204; View online: https://doi.org/0.063/.490788 View Table of ontents: http://aip.scitation.org/toc/apc/625/ Published
More informationSymmetry transform in Faddeev-Jackiw quantization of dual models
Symmetry transform in Faddeev-Jackiw quantization of dual models C. P. Natividade Instituto de Física, Universidade Federal Fluminense, Avenida Litorânea s/n, Boa Viagem, Niterói, 242-34 Rio de Janeiro,
More informationIsospin structure of one- and two-phonon giant dipole resonance excitations
PHYSICAL REVIEW C VOLUME 59, NUMBER 6 JUNE 1999 Isospin structure of one- and two-phonon giant dipole resonance excitations A. F. R. de Toledo Piza, 1 M. S. Hussein, 1 B. V. Carlson, 2 C. A. Bertulani,
More informationThe Elliptic Solutions to the Friedmann equation and the Verlinde s Maps.
. The Elliptic Solutions to the Friedmann equation and the Verlinde s Maps. Elcio Abdalla and L.Alejandro Correa-Borbonet 2 Instituto de Física, Universidade de São Paulo, C.P.66.38, CEP 0535-970, São
More informationLORENTZ BOOSTED NUCLEON-NUCLEON T-MATRIX AND THE TRITON BINDING ENERGY
October 7, 28 22:52 WSPC/INSTRUCTION FILE Modern Physics Letters A c World Scientific Publishing Company LORENTZ BOOSTED NUCLEON-NUCLEON T-MATRIX AND THE TRITON BINDING ENERGY H. KAMADA Department of Physics,
More informationRELAXATION AND TRANSIENTS IN A TIME-DEPENDENT LOGISTIC MAP
International Journal of Bifurcation and Chaos, Vol. 12, No. 7 (2002) 1667 1674 c World Scientific Publishing Company RELAATION AND TRANSIENTS IN A TIME-DEPENDENT LOGISTIC MAP EDSON D. LEONEL, J. KAMPHORST
More informationA new ab initio method of calculating Z eff and positron annihilation rates using coupled-channel T-matrix amplitudes
A new ab initio method of calculating Z eff and positron annihilation rates using coupled-channel T-matrix amplitudes P K Biswas Departamento de Física, Instituto Tecnológico de Aeronáutica, CTA São José
More informationF. S.Navarra Instituto de Física, Universidade de São Paulo, C.P , São Paulo, SP, Brazil.
f 0 (980) production in D + s π + π + π and D + s π + K + K decays J. M. Dias Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigacíon de Paterna,
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 informationVacuum Polarization in the Presence of Magnetic Flux at Finite Temperature in the Cosmic String Background
Vacuum Polarization in the Presence of Magnetic Flux at Finite Temperature in the Cosmic String Background Univ. Estadual da Paraíba (UEPB), Brazil E-mail: jeanspinelly@ig.com.br E. R. Bezerra de Mello
More informationSimilarity renormalization group for nucleon-nucleon interactions
PHYSICAL REVIEW C 75, 0600(R) (2007) Similarity renormalization group for nucleon-nucleon interactions S. K. Bogner, * R. J. Furnstahl, and R. J. Perry Department of Physics, The Ohio State University,
More informationStatic and covariant meson-exchange interactions in nuclear matter
Workshop on Relativistic Aspects of Two- and Three-body Systems in Nuclear Physics - ECT* - 19-23/10/2009 Static and covariant meson-exchange interactions in nuclear matter Brett V. Carlson Instituto Tecnológico
More informationarxiv: v1 [hep-ph] 22 Jun 2012
Electroweak hadron structure in point-form dynamics heavy-light systems arxiv:1206.5150v1 [hep-ph] 22 Jun 2012 and Wolfgang Schweiger Institut für Physik, Universität Graz, A-8010 Graz, Austria E-mail:
More informationarxiv: v2 [nucl-th] 7 Mar 2014
Few-Body Systems (EFB22) manuscript No. (will be inserted by the editor) E. Ruiz Arriola S. Szpigel V. S. Timóteo Fixed points of the Similarity Renormalization Group and the Nuclear Many-Body Problem
More informationarxiv: v1 [hep-lat] 31 Jan 2011
What Lattice QCD tell us about the Landau Gauge Infrared Propagators arxiv:.5983v [hep-lat] 3 Jan Centro de Física Computacional, Departamento de Física, Universidade de Coimbra, 34-56 Coimbra, Portugal
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 informationGeneralization of the matrix product ansatz for integrable chains
arxiv:cond-mat/0608177v1 [cond-mat.str-el] 7 Aug 006 Generalization of the matrix product ansatz for integrable chains F. C. Alcaraz, M. J. Lazo Instituto de Física de São Carlos, Universidade de São Paulo,
More information386 Brazilian Journal of Physics, vol. 30, no. 2, June, 2000 Atomic Transitions for the Doubly Ionized Argon Spectrum, Ar III 1 F. R. T. Luna, 2 F. Br
386 Brazilian Journal of Physics, vol. 30, no. 2, June, 2000 Atomic Transitions for the Doubly Ionized Argon Spectrum, Ar III 1 F. R. T. Luna, 2 F. Bredice, 3 G. H. Cavalcanti, and 1;4 A. G. Trigueiros,
More informationLecture 5. Hartree-Fock Theory. WS2010/11: Introduction to Nuclear and Particle Physics
Lecture 5 Hartree-Fock Theory WS2010/11: Introduction to Nuclear and Particle Physics Particle-number representation: General formalism The simplest starting point for a many-body state is a system of
More informationarxiv:hep-ph/ v1 16 Mar 2004 GLUEBALL-GLUEBALL INTERACTION IN THE CONTEXT OF AN EFFECTIVE THEORY
International Journal of Modern Physics D c World Scientific Publishing Company arxiv:hep-ph/4186v1 16 Mar 24 GLUEBALL-GLUEBALL INTERACTION IN THE CONTEXT OF AN EFFECTIVE THEORY MARIO L. L. DA SILVA Instituto
More informationrenormalization, the AB potential becomes related to the delta function, contact, interaction. These issues have been discussed from the quantum mecha
Relativistic Corrections to the Aharonov-Bohm Scattering M. Gomes, J. M. C. Malbouisson and A. J. da Silva Instituto de Fsica, Universidade de S~ao Paulo, Caixa Postal 6638, 0535{970, S~ao Paulo, SP, Brazil.
More informationModern Physics Letters A Vol. 24, Nos (2009) c World Scientific Publishing Company
Modern Physics Letters A Vol. 24, Nos. 11 13 (2009) 816 822 c World cientific Publishing Copany TOWARD A THREE-DIMENIONAL OLUTION FOR 3N BOUND TATE WITH 3NFs M. R. HADIZADEH and. BAYEGAN Departent of Physics,
More informationFaddeev equations: a view of baryon properties
E-mail: diana.nicmorus@uni-graz.at G. Eichmann E-mail: ge.eichmann@uni-graz.at A. Krassnigg E-mail: andreas.krassnigg@uni-graz.at R. Alkofer E-mail: reinhard.alkofer@uni-graz.at We present a calculation
More informationarxiv:hep-ph/ v1 25 Mar 1998
Left-right asymmetries in polarized e-µ scattering IFT-P.019/98 hep-ph/9803450 March 1998 arxiv:hep-ph/9803450v1 25 Mar 1998 J. C. Montero, V. Pleitez and M. C. Rodriguez Instituto de Física Teórica Universidade
More informationCoulomb and nuclear potentials between deformed nuclei
PHYSICAL REVIEW C 70, 014604 (2004) Coulomb and nuclear potentials between deformed nuclei L. C. Chamon, G. P. A. Nobre, D. Pereira, E. S. Rossi, Jr., and C. P. Silva Departamento de Física Nuclear, Instituto
More informationLecture notes for QFT I (662)
Preprint typeset in JHEP style - PAPER VERSION Lecture notes for QFT I (66) Martin Kruczenski Department of Physics, Purdue University, 55 Northwestern Avenue, W. Lafayette, IN 47907-036. E-mail: markru@purdue.edu
More informationThree-body final state interactions in D` Ñ K π`π`
hree-body final state interactions in D` Ñ K π`π` Patrícia C. Magalhães 1,a, M.. obilotta a, K. S. F. F. Guimarães b,. Frederico b, W. de Paula b, A. C. dos eis c, I. and Bediaga c a Instituto de Física,
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 informationCharmed mesons at finite temperature and chemical potential
Charmed mesons at finite temperature and chemical potential Fernando E. Serna 1,a and Gastão Krein 1,b 1 Instituto de Física Teórica, Universidade Estadual Paulista Rua Dr. Bento Teobaldo Ferraz, 271 -
More informationDirac-Brueckner mean fields and an effective* density-dependent DiracHartree-Fock interaction in nuclear. matter
Dirac-Brueckner mean fields and an effective* density-dependent DiracHartree-Fock interaction in nuclear matter Brett V. Carlson Instituto Tecnológico de Aeronáutica, São José dos Campos Brazil and Daisy
More informationVacuum Energy and Effective Potentials
Vacuum Energy and Effective Potentials Quantum field theories have badly divergent vacuum energies. In perturbation theory, the leading term is the net zero-point energy E zeropoint = particle species
More informationOn a Conjecture Concerning Helly Circle Graphs
On a Conjecture Concerning Helly Circle Graphs Guillermo Durán 1 Agustín Gravano 2 Marina Groshaus 3 Fábio Protti 4 Jayme L. Szwarcfiter 5 Abstract We say that G is an e-circle graph if there is a bijection
More informationThe Euler-Kockel-Heisenberg Lagrangian at Finite Temperature. Abstract
IFIC/02-05 The Euler-Kockel-Heisenberg Lagrangian at Finite Temperature J. L. Tomazelli Departament de Física Teòrica, IFIC-CSIC, Universitat de València 4600 Burjassot, València, Spain. L. C. Costa Instituto
More informationPoS(ISFTG)023. Systemic Gauge Theory. Ana Paula Lima CBPF, Brazil José Chauca CBPF, Brazil
Ana Paula Lima CBPF, Brazil E-mail: ana_crlima@hotmail.com José Chauca CBPF, Brazil E-mail: jlchm@cbpf.br Renato Doria AprendaNet, Brazil E-mail: doria@aprendanet.com.br Different topics are bringing the
More informationCoupled-cluster theory for nuclei
Coupled-cluster theory for nuclei Thomas Papenbrock and G. Hagen D. J. Dean M. Hjorth-Jensen B. Velamur Asokan INT workshop Weakly-bound systems in atomic and nuclear physics Seattle, March 8-12, 2010
More informationOn the calculation of inner products of Schur functions
172 J.A. Castilho Alcarás and V.K.B. Kota On the calculation of inner products of Schur functions J.A. Castilho Alcarás Instituto de Física Teórica, Universidade Estadual Paulista, UNESP, 01140-070, São
More informationQuantum Field Theory II
Quantum Field Theory II PHYS-P 622 Radovan Dermisek, Indiana University Notes based on: M. Srednicki, Quantum Field Theory Chapters: 13, 14, 16-21, 26-28, 51, 52, 61-68, 44, 53, 69-74, 30-32, 84-86, 75,
More informationFeynman diagrams in nuclear physics at low and intermediate energies
«Избранные вопросы теоретической физики и астрофизики». Дубна: ОИЯИ, 2003. С. 99 104. Feynman diagrams in nuclear physics at low and intermediate energies L. D. Blokhintsev Skobeltsyn Institute of Nuclear
More informationINVESTIGATIONS OF THE FRICKE GEL (FXG) DOSIMETER DEVELOPED AT IPEN IRRADIATED WITH 60 Co GAMMA RAYS
2007 International Nuclear Atlantic Conference - INAC 2007 Santos, SP, Brazil, September 30 to October 5, 2007 ASSOCIAÇÃO BRASILEIRA DE ENERGIA NUCLEAR - ABEN ISBN: 978-85-99141-02-1 INVESTIGATIONS OF
More informationarxiv:hep-th/ v1 2 Jul 2003
IFT-P.027/2003 CTP-MIT-3393 hep-th/0307019 Yang-Mills Action from Open Superstring Field Theory arxiv:hep-th/0307019v1 2 Jul 2003 Nathan Berkovits 1 Instituto de Física Teórica, Universidade Estadual Paulista,
More informationScattering of positronium by H, He, Ne, and Ar
arxiv:physics/000104v1 [physics.atom-ph] 11 Jan 000 Scattering of positronium by H, He, Ne, and Ar P. K. Biswas and Sadhan K. Adhikari Instituto de Física Teórica, Universidade Estadual Paulista, 01.405-900
More informationarxiv: v1 [hep-ph] 2 May 2017
Scotogenic model with B L symmetry and exotic neutrinos A. C. B. Machado Laboratorio de Física Teórica e Computacional Universidade Cruzeiro do Sul Rua Galvão Bueno 868 São Paulo, SP, Brazil, 01506-000
More informationarxiv: v1 [physics.atom-ph] 9 Mar 2019
Noname manuscript No. will be inserted by the editor) Dimensional effects in Efimov physics M. T. Yamashita arxiv:1903.03716v1 [physics.atom-ph 9 Mar 2019 eceived: date / Accepted: date Abstract Efimov
More informationForbush decreases detected by the MUONCA muon telescopes on 13 September and 22 December 2014
Forbush decreases detected by the MUONCA muon telescopes on 13 September and December 014 a, C. E. Navia b, E. J. T. Manganote c, D. N. B. Vasconcelos a, L.A.S. Pereira a, F.A. Nero a, H.V. Souza a and
More informationarxiv:hep-ph/ v1 30 Oct 2005
Glueball decay in the Fock-Tani formalism Mario L. L. da Silva, Daniel T. da Silva, Dimiter Hadjimichef, and Cesar A. Z. Vasconcellos arxiv:hep-ph/0510400v1 30 Oct 2005 Instituto de Física, Universidade
More informationLight hypernuclei based on chiral and phenomenological interactions
Mitglied der Helmholtz-Gemeinschaft Light hypernuclei based on chiral and phenomenological interactions Andreas Nogga, Forschungszentrum Jülich International Conference on Hypernuclear and Strange Particle
More informationarxiv:quant-ph/ v1 24 Dec 1998
Validity of Feynman s prescription of disregarding the Pauli principle in intermediate states F.A.B. Coutinho a, Y. Nogami b,c and Lauro Tomio c a Faculdade de Medicina, Universidade de São Paulo, Av.
More informationarxiv: v1 [hep-ph] 7 Apr 2015
Solving the inhomogeneous Bethe-Salpeter Equation in Minkowski space: the zero-energy limit T. Frederico a, G. Salmè b and M. Viviani c a Dep. de Física, Instituto Tecnológico de Aeronáutica, DCTA, 2.228-9
More informationREVIEW REVIEW. Quantum Field Theory II
Quantum Field Theory II PHYS-P 622 Radovan Dermisek, Indiana University Notes based on: M. Srednicki, Quantum Field Theory Chapters: 13, 14, 16-21, 26-28, 51, 52, 61-68, 44, 53, 69-74, 30-32, 84-86, 75,
More informationQuantum Field Theory II
Quantum Field Theory II PHYS-P 622 Radovan Dermisek, Indiana University Notes based on: M. Srednicki, Quantum Field Theory Chapters: 13, 14, 16-21, 26-28, 51, 52, 61-68, 44, 53, 69-74, 30-32, 84-86, 75,
More informationUniversal behaviour of four-boson systems from a functional renormalisation group
Universal behaviour of four-boson systems from a functional renormalisation group Michael C Birse The University of Manchester Results from: Jaramillo Avila and Birse, arxiv:1304.5454 Schmidt and Moroz,
More informationReview of scalar field theory. Srednicki 5, 9, 10
Review of scalar field theory Srednicki 5, 9, 10 2 The LSZ reduction formula based on S-5 In order to describe scattering experiments we need to construct appropriate initial and final states and calculate
More informationarxiv:cond-mat/ v1 20 May 1999
May, 1999 Relativistic Quantum Thermodynamics of Ideal Gases in 2 Dimensions arxiv:cond-mat/9905307v1 20 May 1999 H. Blas and B. M. Pimentel Instituto de Física Teórica-UNESP Rua Pamplona 145 01405 São
More informationin-medium pair wave functions the Cooper pair wave function the superconducting order parameter anomalous averages of the field operators
(by A. A. Shanenko) in-medium wave functions in-medium pair-wave functions and spatial pair particle correlations momentum condensation and ODLRO (off-diagonal long range order) U(1) symmetry breaking
More informationTight-binding treatment of the Hubbard model in infinite dimensions
PHYSICAL REVIEW B VOLUME 54, NUMBER 3 15 JULY 1996-I Tight-binding treatment of the Hubbard model in infinite dimensions L. Craco Instituto de Física, Universidade Federal do Rio Grande do Sul, 9151-97
More informationBeta functions in quantum electrodynamics
Beta functions in quantum electrodynamics based on S-66 Let s calculate the beta function in QED: the dictionary: Note! following the usual procedure: we find: or equivalently: For a theory with N Dirac
More informationD-Branes at Finite Temperature in TFD
D-Branes at Finite Temperature in TFD arxiv:hep-th/0308114v1 18 Aug 2003 M. C. B. Abdalla a, A. L. Gadelha a, I. V. Vancea b January 8, 2014 a Instituto de Física Teórica, Universidade Estadual Paulista
More informationarxiv: v2 [hep-th] 14 Aug 2008
Lorentz symmetry violation and an analog of Landau levels E. Passos, 1, L. R. Ribeiro, 1, C. Furtado, 1, and J. R. Nascimento 1,, 1 Departamento de Física, Universidade Federal da Paraíba, Caixa Postal
More informationPoincaré Invariant Three-Body Scattering
Poincaré Invariant Three-Body Scattering Ch. Elster T. Lin W. Polyzou, W. Glöckle 10/9/008 Supported by: U.S. DOE, OSC, NERSC A Few-Body Theorist s view of the Nuclear Chart Bound State: 3 H - 3 He Scattering:
More information1.1 A Scattering Experiment
1 Transfer Matrix In this chapter we introduce and discuss a mathematical method for the analysis of the wave propagation in one-dimensional systems. The method uses the transfer matrix and is commonly
More informationarxiv: v2 [nucl-th] 22 Apr 2018
A quasi-particle model with a phenomenological critical point Hong-Hao Ma 1, Danuce Marcele Dudek 2, Kai Lin 3, Wei-Liang Qian 4,1,5a, Yogiro Hama 6, and Takeshi Kodama 7,8 1 Faculdade de Engenharia de
More informationE2, E4, and E6 statistical decay spectra in "Tb
Revista Brasileira de Física, Vol. 19, no 2, 1989 E2, E4, and E6 statistical decay spectra in "Tb N. Teruya, E. Wolynec and H. Dias Instituto de Física, Universidade de São Paulo, Caixa Postal 20516, São
More informationBrazilian Journal of Physics, vol. 29, no. 4, December, Caixa Postal 676, 13564{200, S~ao Carlos, SP, Brazil
Brazilian Journal of Physics, vol. 9, no. 4, December, 1999 685 Evolution of Dynamic Localization Regimes in Coupled Minibands P. H.Rivera 1 and P. A.Schulz 1 Departamento de Fsica, Universidade Federal
More informationSolitons in atomic condensates, with optical lattices and field-induced dipole moments
Solitons in atomic condensates, with optical lattices and field-induced dipole moments Lauro Tomio 1,2, H F da Luz 1, A Gammal 3 and F Kh Abdullaev 4 1 Centro de Ciências aturais e Humanas (CCH), Universidade
More informationElectronic Supplementary Information.
Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is the Owner Societies 2017 Electronic Supplementary Information. Ultrafast charge transfer dynamics pathways
More informationClassification of Tripartite Entanglement with one Qubit. Marcio F. Cornelio and A. F. R. de Toledo Piza
Classification of Tripartite Entanglement with one Qubit Marcio F. Cornelio and A. F. R. de Toledo Piza Universidade de São Paulo, Instituto de Física, CP 66318, 05315 São Paulo, S.P., Brazil July 05,
More informationModeling Electromagnetic Form Factors of Light and Heavy Pseudoscalar Mesons
Brazilian Journal of Physics, vol. 38, no. 3B, September, 2008 465 Modeling Electromagnetic Form Factors of Light and Heavy Pseudoscalar Mesons B. El-Bennich 1,2, J. P. B. C. de Melo 3, B. Loiseau 1, J.-P.
More informationNNLO antenna subtraction with one hadronic initial state
antenna subtraction with one hadronic initial state Alejandro Daleo, Aude Gehrmann-De Ridder Institute for Theoretical Physics, ETH Zürich E-mail: adaleo@phys.ethz.ch, gehra@phys.ethz.ch Thomas Gehrmann,
More informationPHYS 508 (2015-1) Final Exam January 27, Wednesday.
PHYS 508 (2015-1) Final Exam January 27, Wednesday. Q1. Scattering with identical particles The quantum statistics have some interesting consequences for the scattering of identical particles. This is
More informationWard-Takahashi Relations: Longitudinal and Transverse
Ward-Takahashi Relations: Longitudinal and Transverse Theoretical Physics Institute University of Alberta, Edmonton, Alberta, T6G 2G7 Canada E:mail khanna@phys.ualberta.ca Ward-Takahashi relations in Abelian
More informationarxiv:cond-mat/ v1 [cond-mat.mes-hall] 26 Sep 2001
Effects of an electron gas on the negative trion in semiconductor quantum wells arxiv:cond-mat/09505v1 [cond-mat.mes-hall] 26 Sep 2001 Luis C.O. Dacal 1, José A. Brum 1,2 (1) DFMC-IFGW, Universidade Estadual
More informationUniversality check of the overlap fermions in the Schrödinger functional
Universality check of the overlap fermions in the Schrödinger functional Humboldt Universitaet zu Berlin Newtonstr. 15, 12489 Berlin, Germany. E-mail: takeda@physik.hu-berlin.de HU-EP-8/29 SFB/CPP-8-57
More informationI. CSFs Are Used to Express the Full N-Electron Wavefunction
Chapter 11 One Must be Able to Evaluate the Matrix Elements Among Properly Symmetry Adapted N- Electron Configuration Functions for Any Operator, the Electronic Hamiltonian in Particular. The Slater-Condon
More informationThe Color Flavor Locked Phase in the Chromodielectric Model and Quark Stars
Brazilian Journal of Physics, vol. 36, no. 4B, December, 2006 1391 The Color Flavor Locked Phase in the Chromodielectric Model and Quark Stars L. P. Linares 1, M. Malheiro 1,2, 1 Instituto de Física, Universidade
More informationNN scattering: Chiral predictions for asymptotic observables
PHYSICAL REVIEW C VOLUME 57, NUMBER 4 APRIL 1998 NN scattering: Chiral predictions for asymptotic observables J-L. Ballot* Division de Physique Théorique, Institut de Physique Nucléaire F-91406, Orsay
More information2 Feynman rules, decay widths and cross sections
2 Feynman rules, decay widths and cross sections 2.1 Feynman rules Normalization In non-relativistic quantum mechanics, wave functions of free particles are normalized so that there is one particle in
More informationCoupled channel description for X(3872) and other XYZ mesons
Coupled channel description for X(387 and other XYZ mesons, J. Segovia, D. R. Entem, F. Fernández Grupo de Física Nuclear y IUFFyM, University of Salamanca, E-37008 Salamanca, Spain E-mail: pgortega@usal.es
More informationSummary of free theory: one particle state: vacuum state is annihilated by all a s: then, one particle state has normalization:
The LSZ reduction formula based on S-5 In order to describe scattering experiments we need to construct appropriate initial and final states and calculate scattering amplitude. Summary of free theory:
More informationarxiv:nucl-th/ v1 22 Sep 2000
1 arxiv:nucl-th/967v1 22 Sep 2 Chiral Dynamics in Few Nucleon Systems E. Epelbaum a, H. Kamada a,b, A. Nogga b, H. Wita la c, W. Glöckle b, and Ulf-G. Meißner a a Forschungszentrum Jülich, Institut für
More informationR function for residual analysis in linear mixed models: lmmresid
R function for residual analysis in linear mixed models: lmmresid Juvêncio S. Nobre 1, and Julio M. Singer 2, 1 Departamento de Estatística e Matemática Aplicada, Universidade Federal do Ceará, Fortaleza,
More information