Hyperfine Splitting in the Bottomonium System on the Lattice and in the Continuum
|
|
|
- Reginald McBride
- 5 years ago
- Views:
Transcription
1 Hyperfine Splitting in the Bottomonium System on the Lattice and in the Continuum Nikolai Zerf in collaboration with M. Baker, A. Penin, D. Seidel Department of Physics University of Alberta Radcor-Loopfest, LA 2015 Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
2 Overview 1 Motivation & Basics 2 Experimental Results 3 Theory Predictions 4 Determination of E hfs 5 Summary Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
3 Motivation M(Υ 1S ) M(η b ) = E hfs Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
4 Motivation M(Υ 1S ) M(η b ) = E hfs Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
5 Motivation M(Υ 1S ) M(η b ) = E hfs Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
6 Motivation M(Υ 1S ) M(η b ) = E hfs Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
7 Motivation M(Υ 1S ) M(η b ) = E hfs Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
8 Motivation M(Υ 1S ) M(η b ) = E hfs Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
9 Motivation M(Υ 1S ) M(η b ) = E hfs Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
10 Motivation M(Υ 1S ) M(η b ) = E hfs Is perturbative QCD breaking down? Is new physics needed? [Domingo et al. 2009] Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
11 Basics Quantum configuration: q s SU(3) Color SU(2) Spin n L I G (J PC ) η b bb (0 + ) Υ 1S bb (1 ) h b bb (1 + ) χ b bb (1 ++ ) Υ 1S production: s = M(Υ1S ) = ± 0.26 MeV [E288 collaboration 1977] [PDG 2014] Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
12 Basics Quantum configuration: q s SU(3) Color SU(2) Spin n L I G (J PC ) η b bb (0 + ) Υ 1S bb (1 ) h b bb (1 + ) χ b bb (1 ++ ) Υ 1S production: s = M(Υ1S ) = ± 0.26 MeV [PDG 2014] Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
13 Basics Quantum configuration: q s SU(3) Color SU(2) Spin n L I G (J PC ) η b bb (0 + ) Υ 1S bb (1 ) h b bb (1 + ) χ b bb (1 ++ ) Υ 1S production: s = M(Υ1S ) = ± 0.26 MeV η b production: [PDG 2014] [BaBar 2008] Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
14 Experimental Results BaBar 2008: Inklusive photon spectrum 3 10 Entries / ( GeV ) (a) E γ (GeV) Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
15 Experimental Results BaBar 2008: (non-peaked background subtracted) Entries/ (0.005 GeV) (b) (GeV) E γ Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
16 Experimental Results BaBar 2008: (non-peaked background subtracted) Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
17 Experimental Results BaBar 2008: (non-peaked background subtracted) Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
18 Experimental Results BaBar 2008: (non-peaked background subtracted) Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
19 Experimental Results BaBar 2008: (η b signal) Entries/ (0.020 GeV) (c) E γ (GeV) Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
20 Experimental Results BaBar 2008: E hfs = ± 2.7 MeV. Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
21 Experimental Results Belle 2012: [Belle 2012] Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
22 Experimental Results Belle 2012: h b (1P) yield, 10 3 / 10 MeV/c 2 h b (2P) yield, 10 3 / 10 MeV/c (a) (b) h b (1P) γη b (1S) h b (2P) γη b (1S) h b (2P) yield, 10 3 / 10 MeV/c (c) h b (2P) γη b (2S) M (n) miss(π + π - γ), GeV/c 2 Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
23 Experimental Results BaBar 2008: Belle 2012: E hfs = ± 2.7 MeV E hfs = 57.9 ± 2.3 MeV Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
24 Theory prediction for E hfs Phenomenologic potential models fitted potentials = QCD potentials? no systematic treatment of radiative corrections Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
25 Theory prediction for E hfs Phenomenologic potential models fitted potentials = QCD potentials? no systematic treatment of radiative corrections Perturbative (pnr)qcd calculation systematic ordering of radiative corrections in α s, v available up to NNLL non-perturbative effects missing Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
26 Theory prediction for E hfs Phenomenologic potential models fitted potentials = QCD potentials? no systematic treatment of radiative corrections Perturbative (pnr)qcd calculation systematic ordering of radiative corrections in α s, v available up to NNLL non-perturbative effects missing Lattice QCD simulation non-perturbative effects demanding for hardware (L 1/Λ QCD & a 1/m b ) Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
27 Theory prediction for E hfs Phenomenologic potential models fitted potentials = QCD potentials? no systematic treatment of radiative corrections Perturbative (pnr)qcd calculation systematic ordering of radiative corrections in α s, v available up to NNLL non-perturbative effects missing Lattice QCD simulation non-perturbative effects demanding for hardware (L 1/Λ QCD & a 1/m b ) Lattice NRQCD simulation non-perturbative effects less demanding for hardware (scales separation) systematic ordering of radiative corrections in α s, v Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
28 Perturbative pnrqcd calculation EFT-Tower: QCD NRQCD Ψ(i /D m)ψ integrating out m ψ (id 0 + D2 2m g s c F 2mσ B)ψ +... integrating out vm (v = velocity) pnrqcd Ĥ φ = E φ, Ĥ = 2 m C Fα s r ( ) + V S +... Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
29 Perturbative pnrqcd calculation EFT-Tower: QCD NRQCD Ψ(i /D m)ψ integrating out m ψ (id 0 + D2 2m g s c F 2mσ B)ψ +... integrating out vm (v = velocity) pnrqcd Ĥ φ = E φ, Ĥ = 2 m C Fα s r ( ) + V S +... Spin dependence: c NRQCD L σ = g F s 2m ψ C σ Bψ + (ψ χ c ) + d F α s σ ψ σψχ cσχ c pnrqcd V S (q 2 ) = (c 2 F 3 2 d σ) 4πC Fα s(q 2 )S 2 3m m 2 Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
30 Perturbative pnrqcd calculation EFT-Tower: QCD NRQCD Ψ(i /D m)ψ integrating out m ψ (id 0 + D2 2m g s c F 2mσ B)ψ +... integrating out vm (v = velocity) pnrqcd Ĥ φ = E φ, Ĥ = 2 m C Fα s r ( ) + V S +... Spin dependence: c NRQCD L σ = g F s 2m ψ C σ Bψ + (ψ χ c ) + d F α s σ ψ σψχ cσχ c pnrqcd V S (q 2 ) = (c 2 F 3 2 d σ) 4πC Fα s(q 2 )S 2 3m E hfs calculated within pnrqcd using TIPT m 2 Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
31 Perturbative pnrqcd calculation E hfs result: [Kniehl, Penin, Pineda, Soto, Steinhauser, Smirnov 2004] E hfs (MeV) ν (GeV) NLL NLO LO LL E hfs = 41 ± 11(th) +9 8 (δα s) Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
32 Lattice NRQCD Simulation Basic idea take vm < 1/a < m as NRQCD factorization scale use NRQCD on the lattice (lnrqcd) to simulate E hfs at finite a extrapolate to a 0 Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
33 Lattice NRQCD Simulation Basic idea take vm < 1/a < m as NRQCD factorization scale use NRQCD on the lattice (lnrqcd) to simulate E hfs at finite a extrapolate to a 0 Matching QCD to lnrqcd QCD d 4 x Ψ(i /D m)ψ integrating out m NRQCD d 4 x ψ (id 0 + D2 2m g s c F 2mσ B)ψ +... descretizing/introducing lattice spacing a lnrqcd a 3 ψ c (x)(1 U 0 + ag F s 2mσ B)ψ(.) +... x Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
34 Lattice NRQCD Simulation Basic idea take vm < 1/a < m as NRQCD factorization scale use NRQCD on the lattice (lnrqcd) to simulate E hfs at finite a extrapolate to a 0 Matching QCD to lnrqcd QCD d 4 x Ψ(i /D m)ψ integrating out m NRQCD d 4 x ψ (id 0 + D2 2m g s c F 2mσ B)ψ +... descretizing/introducing lattice spacing a lnrqcd a 3 ψ c (x)(1 U 0 + ag F s 2mσ B)ψ(.) +... x Determination of MCs Lattice Perturbation Theory Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
35 Spin Dependent Matching Status c F C F α s L σ = g s 2m ψ σ Bψ + (ψ χ c ) + d σ m 2 ψ σψχ cσχ c Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
36 Spin Dependent Matching Status c F C F α s L σ = g s 2m ψ σ Bψ + (ψ χ c ) + d σ m 2 ψ σψχ cσχ c c F (chromomagnetic moment) known including O(α s ) [Hammant, Hart, Hippel, Horgan, Monahan 2011] can be cross checked against lattice extraction Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
37 Spin Dependent Matching Status c F C F α s L σ = g s 2m ψ σ Bψ + (ψ χ c ) + d σ m 2 ψ σψχ cσχ c c F (chromomagnetic moment) known including O(α s ) [Hammant, Hart, Hippel, Horgan, Monahan 2011] can be cross checked against lattice extraction d σ (local four-quark interaction) result available at O(αs ) currently sign of log depends on specific publication (typo) we do not agree with constant of QCD amplitude finite quark mass are kept includes uncontrolled HO terms in 1/m Coulomb singularity numerically subtracted Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
38 Naive Lattice Action Wilson s glue action S g = β 2 x µ,ν ( 1 2N F tr [ ] ) µν + µν 1, β = 2N F /g 2 s, µν = U +µ U +ν U µ U ν, U ±µ (x) = exp{iag s T a A a µ(x ± 1 2 aê µ)}. Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
39 Naive Lattice Action Wilson s glue action S g = β 2 x µ,ν ( 1 2N F tr [ ] ) µν + µν 1, β = 2N F /g 2 s, µν = U +µ U +ν U µ U ν, U ±µ (x) = exp{iag s T a A a µ(x ± 1 2 aê µ)}. Static quark action S ψ = x a 4 ψ D 0 ψ. D + µ = 1 a (U +µ 1), D µ = 1 a (1 U µ). Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
40 Naive Lattice Action Wilson s glue action S g = β 2 x µ,ν ( 1 2N F tr [ ] ) µν + µν 1, β = 2N F /g 2 s, µν = U +µ U +ν U µ U ν, U ±µ (x) = exp{iag s T a A a µ(x ± 1 2 aê µ)}. Static quark action S ψ = x a 4 ψ D 0 ψ. Spin flip action S ψσ = x a 4 i 2m ɛijk ψ 1 σ k 2 (D i D + j + D + i D j ) ψ }{{} G ij D + µ = 1 a (U +µ 1), D µ = 1 a (1 U µ). Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
41 Lattice Action g s 0 Feynman-rules Expansion of a single gauge link for small g s x ± = x ± 1 2 aê µ, U ±µ (x) = 1 + iag s T a A a µ(x ± ) a2 g 2 s 2 Ta T b A a µ(x ± )A b µ(x ± ) +... Switching to momentum space φ(x) = 1 e ip x φ(p), φ {A, ψ, χc }, V 1.BZ : π a < p i π a. Feynman-rules propagators: Inverse of 2-field Fourier coefficient n-vertex: n-field Fourier coefficient (symmetrized) x Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
42 Analytic Integral Treatment Evaluation in the limit aλ 0 [Becher, Melnikov 2002] Full integral I = π a π a d 4 k 1 (2π) 4 [ ( 2 µ a sin(ak µ/2) ) 2 + λ 2 ]. 2 Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
43 Analytic Integral Treatment Evaluation in the limit aλ 0 [Becher, Melnikov 2002] Full integral I = π a π a d 4 k 1 (2π) 4 [ ( 2 µ a sin(ak µ/2) ) 2 + λ 2 ]. 2 α Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
44 Analytic Integral Treatment Evaluation in the limit aλ 0 [Becher, Melnikov 2002] Full integral I = π a π a d 4 k 1 (2π) 4 [ ( 2 µ a sin(ak µ/2) ) 2 + λ 2 ]. 2 α Soft region k λ expand in ak I soft = d 4 k 1 (2π) 4 [k 2 + λ 2 ] 2 α + O(a2 λ 2 ). Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
45 Analytic Integral Treatment Evaluation in the limit aλ 0 [Becher, Melnikov 2002] Full integral I = π a π a d 4 k 1 (2π) 4 [ ( 2 µ a sin(ak µ/2) ) 2 + λ 2 ]. 2 α Soft region k λ expand in ak I soft = d 4 k 1 (2π) 4 [k 2 + λ 2 ] 2 α + O(a2 λ 2 ). Hard region k 1/a expand in aλ I hard = π a π a d 4 k 1 (2π) 4 [ ( 2 µ a sin(ak µ/2) ) 2 + ] 2 α O(a2 λ 2 ). Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
46 Analytic Integral Treatment Evaluation in the limit aλ 0 [Becher, Melnikov 2002] Full integral I = π a π a d 4 k 1 (2π) 4 [ ( 2 µ a sin(ak µ/2) ) 2 + λ 2 ]. 2 α Soft region k λ expand in ak I soft = 1 8π 4 [ 1 2α log λ +... Hard region k 1/a expand in aλ I hard = 1 8π 4 [ 1 2α log a +... ] + O(a 2 λ 2 ). ] + O(a 2 λ 2 ). Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
47 Analytic Integral Treatment Evaluation in the limit aλ 0 [Becher, Melnikov 2002] Full integral I = I soft + I hard = 1 8π 4 [log(aλ) +... ] + O(a2 λ 2 ). Soft region k λ expand in ak I soft = 1 8π 4 [ 1 2α log λ +... Hard region k 1/a expand in aλ I hard = 1 8π 4 [ 1 2α log a +... ] + O(a 2 λ 2 ). ] + O(a 2 λ 2 ). Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
48 4-Fermion Operator Matching QCD lnrqcd = q 2 = M QCD 1PI = C Fαs 2 [ CA ( m 2 q 2 log mq ) ( + (ln 2 1) T F + 1 2πm ) ] q C F ψ σψχ λ 3λ cσχ c, M lnrqcd 1PI = C Fαs 2 [ m 2 q? + 0 T F 2πm ] q 3λ C F ψ σψχ cσχ c + O ( a 2), Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
49 4-Fermion Operator Matching QCD = q 2 = 0 lnrqcd +... M QCD 1PI = C Fαs 2 [ CA ( m 2 q 2 log mq ) ( + (ln 2 1) T F + 1 2πm ) ] q C F ψ σψχ λ 3λ cσχ c, M lnrqcd 1PI = C Fαs 2 [ m 2 (δ + 12 ) ln (λa) C A 2πm ] q q 3λ C F ψ σψχ cσχ c + O ( a 2), d σ = α s [( δ L ) C A + (ln 2 1) T F + C F ]. Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
50 4-Fermion Operator Matching Naive action δ naive = π2 b 2 256π 2 b 3 = calculated analytically naive action simulation has large discretization error Improved lattice action are in use for improved a 0 limit no analytic calculation numeric calculation Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
51 Action Improvements Glue action Wilson Lüscher & Weisz Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
52 Action Improvements Glue action Wilson Lüscher & Weisz Naive G ij cloverleaf G ij improved cloverleaf G ij Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
53 Action Improvements Glue action Wilson Lüscher & Weisz Naive G ij cloverleaf G ij improved cloverleaf G ij Additional smoothing time slice in quark-/anti-quark action x a 4 i 2m ɛijk ψ σ k G ij ψ x a 4 i 2m ɛijk ψ σ k (U t G ij + G ij U t )ψ Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
54 Numeric Setup fastcol.m [NZ] Full automatic lattice amplitude generator (Mathematica) QGRAF [Nogueira 91] diagram generator (FORTRAN) COLOR [Ritbergen,Schellekens,Vermaseren 99] precalculating color amplitudes (FORM) HIPPY [Hart,Hippel,Horgan,Muller 09] numeric expansion coefficients for gauge link configurations numeric Feynman-rules (Python) HPSRC [Hart,Hippel,Horgan,Muller 09] numeric vertex & propagator functions (FORTRAN) CUBA [Hahn 05] integrator package with multicore support (FORTRAN) Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
55 δ for Improved Action Numeric evaluation of the difference δ = δ improved δ naive Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
56 δ for Improved Action 0.04 Λ Λ 2 in a (0) = 6 π 2 δ (λ 2 ) = (0) + c 1 λ 2 + c 2 λ 2 log(λ 2 ) Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
57 Determination of E hfs Lattice simulations with d σ = 0 O(v 4 ) action [HPQCD 12] O(v 6 ) action [HPQCD 14] Four quark operator contribution 4C F α s E hfs = d σ m 2 ψ(0) 2 q mb, α s, ψ(0) 2 from the lattice Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
58 Determination of E hfs Ehfs MeV v 4 action v 6 action New value: a 2 fm 2 Ehfs th = 52.9 ± 5.5 MeV Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
59 Summary of E hfs results Experiment Υ(3S) decays (Babar, 2008) (stat) ± 2.7(syst) Υ(2S) decays (Babar, 2009) (stat) ± 2.0(syst) Υ(3S) decays (CLEO, 2010) 68.5 ± 6.6(stat) ± 2.0(syst) h b (1P) decays (Belle, 2012) 57.9 ± 1.5(stat) ± 1.8(syst) PDG average 62.3 ± 3.2 Theory NRQCD, NLL (2004) 41 ± 11(th) +9 8 (δα s) Lattice QCD (MILC, 2009) 54.0 ± Lattice NRQCD O(v 4 ) (HPQCD, 2012) 70 ± 9 Lattice NRQCD O(v 6 ) (HPQCD, 2013) 62.8 ± 6.7 Lattice NRQCD, new result 52.9 ± 5.5 Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
60 Summary of E hfs results Babar 2008 Babar 2009 CLEO 2010 Belle 2012 PDG average NRQCD NLL, KPPSS 2004 lqcd MILC 2009 lnrqcd HPQCD 2012 lnrqcd HPQCD 2013 lnrqcd, new result E hfs MeV Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
61 Summary 1 employed perturbative lnrqcd to establish a radiative UV improvement (4FO) on top of lnrqcd simulations 2 Ehfs th = 52.9 ± 5.5 MeV 3 QCD works / no evidence for new physics 4 lattice amplitude generator Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L / 21
62 M. Buffer Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L
63 Checks Naive action analytic & numeric setup yield corrections to the static potential analytic result for dσ is gauge independent numeric calculation λ 0 = analytic calculation analytic Feynman rules checked independently (MATHEMATICA) integrands of amplitudes checked against MATHEMATICA implementation Improved action numeric log coefficient = analytic log coefficient Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L
64 Numeric Setup Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L
65 Feynman-rules for naive action a = 1 δi j δs 2 s1 1 e ip 0 g s T a δ µ0 δ s 2 s 1 e i(p k 0) δ abδ µν ˆk 2 +λ 2 gs 2m Ta δ µi ɛ ilm (σ m ) s 2 s 1 k l ρ kil g2 s 2m δ µ 1 iδ µ2 j(σ m ) s [ 2 s 1 f a 1 a 2 c CA c ( ) ɛ ijm k 1+2 ji ζ ij ( + δ a1 a 2 C S ɛ ijm k 1+2 ji ζ ij δ ij ɛ ilm )] k 1+2 ll ζ jl Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L
66 Shorthands k µ = 2 sin ( 1 2 k µ), ρ kil = cos{ 1 2 (k i k l + 2p i 2p l )}, ζ ij = sin{( 1 2 (k 1i + k 2i k 1j k 2j + 2p i 2p j )}, ζ ij = cos{( 1 2 (k 1i + k 2i k 1j k 2j + 2p i 2p j )}, k 1+2 ij = 2 sin{( 1 2 (k 1i + k 2j )}, k 1+2 ij = 2 cos{( 1 2 (k 1i + k 2j )}, C c A = i 2 Tc, C S = I 2,F N F I NF N F δ 1 ab d abct c. Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L
67 Numeric Data L&W 4ICL action Feynman gauge:ξ 0 fbox Λ numeric log c fixed log fit free log fit : numeric data Λ 2 in a Nikolai Zerf (Dep. of Phys. UofA) E hfs = M(Υ 1S ) M(η b a, a 0 R-L
High order corrections in theory of heavy quarkonium
High order corrections in theory of heavy quarkonium Alexander Penin TTP Karlsruhe & INR Moscow ECT Workshop in Heavy Quarkonium Trento, Italy, August 17-31, 2006 A. Penin, TTP Karlsruhe & INR Moscow ECT
Top and bottom at threshold
Top and bottom at threshold Matthias Steinhauser TTP Karlsruhe Vienna, January 27, 2015 KIT University of the State of Baden-Wuerttemberg and National Laboratory of the Helmholtz Association www.kit.edu
A pnrqcd approach to t t near threshold
LoopFest V, SLAC, 20. June 2006 A pnrqcd approach to t t near threshold Adrian Signer IPPP, Durham University BASED ON WORK DONE IN COLLABORATION WITH A. PINEDA AND M. BENEKE, V. SMIRNOV LoopFest V p.
Lectures on NRQCD Factorization for Quarkonium Production and Decay
Lectures on NRQCD Factorization for Quarkonium Production and Decay Eric Braaten Ohio State University I. Nonrelativistic QCD II. Annihilation decays III. Inclusive hard production 1 NRQCD Factorization
strong coupling Antonio Vairo INFN and University of Milano
potential Non-Relativistic QCD strong coupling Antonio Vairo INFN and University of Milano For most of the quarkonium states: 1/r mv Λ QCD (0) V (r) (GeV) 2 1 Υ Υ Υ Υ η ψ c χ ψ ψ 2 0 1 2 r(fm) -1 weak
Radiative transitions and the quarkonium magnetic moment
Radiative transitions and the quarkonium magnetic moment Antonio Vairo based on Nora Brambilla, Yu Jia and Antonio Vairo Model-independent study of magnetic dipole transitions in quarkonium PRD 73 054005
PoS(EPS-HEP 2009)057. Bottomonium Studies at BaBar. Veronique Ziegler. SLAC National Accelerator Laboratory
SLAC National Accelerator Laboratory E-mail: vziegler@slac.stanford.edu Selected studies in bottomonium physics carried out by the BaBar experiment at the SLAC PEP-II e + e collider are presented. They
Popat Patel (McGill University) On behalf of the BaBar Collaboration The Lomonosov XIV Conference Moscow (2009/08/24)
Popat Patel (McGill University) On behalf of the BaBar Collaboration The Lomonosov XIV Conference Moscow (2009/08/24) Outline Brief overview: BaBar Data Bottomonium Spectra Report on selected BaBar analyses
Recent Results from CLEO
Ryan Mitchell Indiana University MENU June 1, 2010 1 Overview of the CLEO Experiment CESR at Cornell University: symmetric e + e collisions at bottomonium (III) and charmonium (c) energies Inner Tracking:
V cb. Determination of. and related results from BABAR. Masahiro Morii, Harvard University on behalf of the BABAR Collaboration
Determination of and related results from BABAR V cb Masahiro Morii, Harvard University on behalf of the BABAR Collaboration V cb from inclusive B semileptonic decays Lepton energy moments Hadron mass
Heavy quark masses from Loop Calculations
Heavy quark masses from Loop Calculations Peter Marquard Institute for Theoretical Particle Physics Karlsruhe Institute of Technology in collaboration with K. Chetyrkin, D. Seidel, Y. Kiyo, J.H. Kühn,
Phenomenology with Lattice NRQCD b Quarks
HPQCD Collaboration 16 July 2015 Our approaches to b quarks In Glasgow, we take two complementary approaches to b quarks: Nonrelativistic QCD and heavy HISQ. Here I will focus exclusively on NRQCD (for
Bottom hadron spectroscopy from lattice QCD
Bottom hadron spectroscopy from lattice QCD Stefan Meinel Department of Physics Jefferson Lab, October 11, 2010 Some puzzles concerning non-excited non-exotic heavy hadrons Ω b : Experiment Events/(0.04
Top Quarks, Unstable Particles... and NRQCD
Top Quarks, Unstable Particles... and NRQCD André H. Hoang Max-Planck-Institute for Physics Munich (Thanks to A. Manohar, I. Stewart, T. Teubner, C. Farrell, C. Reisser, M. Stahlhofen ) INT Workshop, May
Recent Results in NRQCD
Max-Planck-Institute für Physik (Werner-Heisenberg-Institut) Recent Results in NRQCD Pedro D. Ruiz-Femenía Continuous Advances in QCD 2006 Continuous Advances in QCD 2006 May 11-14, University of Minnesota
Determination of α s from the QCD static energy
Determination of α s from the QCD static energy Antonio Vairo Technische Universität München Bibliography (1) A. Bazavov, N. Brambilla, X. Garcia i Tormo, P. Petreczky, J. Soto and A. Vairo Determination
New bottomonium(-like) resonances spectroscopy and decays at Belle
EP J Web of Conferences 70, 00034 (2014) DOI: 10.1051/ ep jconf/ 20147000034 C Owned by the authors, published by EDP Sciences, 2014 New bottomonium(-like) resonances spectroscopy and decays at Belle Umberto
Quarkonium Results from Fermilab and NRQCD
Quarkonium Results from Fermilab and NRQCD Paul Mackenzie mackenzie@fnal.gov International Workshop on Heavy Quarkonium Fermilab Sept. 20-22 2003 Thanks Christine Davies (HPQCD), Jim Simone Recent progress
Charmonium Radiative Transitions
Charmonium Radiative Transitions Jielei Zhang Institute of High Energy of Physics (for the BESIII collaboration) QWG2016 1 What to measure What have done with old datasets 1.06 10 8 ψ(3686) 2009 What will
Charmed Bottom Mesons from Lattice QCD
Charmed Bottom Mesons from Lattice QCD Nilmani Mathur Department of Theoretical Physics Tata Institute of Fundamental Research, India Collaborators : ILGTI, M. Padmanath, R. Lewis Lattice 2016, University
arxiv: v1 [hep-ph] 7 Jan 2013
![arxiv: v1 [hep-ph] 7 Jan 2013](/thumbs/91/106652233.jpg "arxiv: v1 [hep-ph] 7 Jan 2013")
arxiv:1301.1308v1 [hep-ph] 7 Jan 2013 Electric dipole transitions in pnrqcd Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Wien E-mail: piotr.pietrulewicz@univie.ac.at We present a
Charmonium Transitions
Hans Kuipers & Maikel de Vries Student Seminar on Subatomic Physics October 14, 2009 Outline n 2S+1 L J J PC Aspects of charmonium Charmonium is a mesonic bound state of c c. Charmonium produced in e e
Thermal width and quarkonium dissociation in an EFT framework
Thermal width and quarkonium dissociation in an EFT framework Antonio Vairo Technische Universität München in collaboration with N. Brambilla, M. A. Escobedo and J. Ghiglieri based on arxiv:1303.6097 and
Hindered M1 Radiative Decay of from Lattice NRQCD
Introduction Mon 25th July, Lattice 2016 Hindered M1 Radiative Decay of and from Lattice NRQCD arxiv:1508.01694, R. Dowdall, C. Davies, R. Horgan, G. Von Hippel, M. Wingate Motivation Terminology M1 Radiative
Determination of α s from the QCD static energy
Determination of α s from the QCD static energy Antonio Vairo Technische Universität München Bibliography (1) A. Bazakov, N. Brambilla, X. Garcia i Tormo, P. Petreczky, J. Soto and A. Vairo Determination
Zahra Haddadi, KVI-CART (University of Groningen) for the BESIII collaboration 1 Sep EUNPC 2015, Groningen
Zahra Haddadi, KVI-CART (University of Groningen) for the BESIII collaboration 1 Sep. 2015 EUNPC 2015, Groningen Outline: Charmonium spectroscopy spin-singlet states puzzle BESIII & precision measurements
Narrow States Near Thresholds: X(3872)
QWG3 IHEP Beijing, China Oct. 12-15, 2004 Eichten 1/36 Narrow States Near Thresholds: X(3872) Estia Eichten X(3872) at Threshold Charmonium Missing States K. Lane, C. Quigg Including Light Quark Effects
CLEO Results From Υ Decays
CLEO Results From Υ Decays V. Credé 1 2 1 Cornell University, Ithaca, NY 2 now at Florida State University Tallahassee, FL Hadron 05 Outline 1 Introduction The Υ System CLEO III Detector CLEO III Υ Data
PROTON DECAY MATRIX ELEMENTS FROM LATTICE QCD. Yasumichi Aoki RIKEN BNL Research Center. 9/23/09 LBV09 at Madison
PROTON DECAY MATRIX ELEMENTS FROM LATTICE QCD Yasumichi Aoki RIKEN BNL Research Center 9/23/09 LBV09 at Madison Plan low energy matrix elements for N PS,l GUT QCD relation what is exactly needed to calculate
Effective Field Theories for Quarkonium
Effective Field Theories for Quarkonium recent progress Antonio Vairo Technische Universität München Outline 1. Scales and EFTs for quarkonium at zero and finite temperature 2.1 Static energy at zero temperature
arxiv: v1 [hep-ph] 5 Aug 2018
![arxiv: v1 [hep-ph] 5 Aug 2018](/thumbs/93/111956912.jpg "arxiv: v1 [hep-ph] 5 Aug 2018")
KYUSHU HET 186, KEK CP 367, TU-1069 Determination of α s from static QCD potential with renormalon subtraction H. Takaura a, T. Kaneko b, Y. Kiyo c and Y. Sumino d a Department of Physics, Kyushu University,
Bottomonium results. K.Trabelsi kek.jp
Bottomonium results K.Trabelsi karim.trabelsi @ kek.jp KEKB collider and Belle in a nutshell Belle is an international collaboration 15 countries, 64 institutes 365 members Nature of 5S Anomalous production
High-Order QED Calculations in Physics of Positronium
current status and future perspectives of High-Order QED Calculations in Physics of Positronium Alexander A. Penin II. Institut für Theoretische Physik, Universität Hamburg, Germany and Institute for Nuclear
Recent V ub results from CLEO
Recent V ub results from CLEO Marina Artuso Representing the CLEO Collaboration Beauty 2005, Assisi, June 20-25, 2005 1 Quark Mixing Weak interaction couples weak eigenstates, not mass eigenstates: CKM
Pion couplings to the scalar B meson. Antoine Gérardin
Antoine Gérardin 1 Pion couplings to the scalar B meson Pion couplings to the scalar B meson Antoine Gérardin In collaboration with B. Blossier and N. Garron Based on [arxiv:141.349] LPT Orsay January
Study of Transitions and Decays of Bottomonia at Belle
1 Study of Transitions and Decays of Bottomonia at Belle Saurabh Sandilya University of Cincinnati (On behalf of the Belle Collaboration) Outline Introduction (Bottomonia, KEKB & Belle detector) Transitions
Light hadrons in 2+1 flavor lattice QCD
Light hadrons..., Lattice seminar, KITP, Jan 26, 2005. U.M. Heller p. 1/42 Light hadrons in 2+1 flavor lattice QCD Urs M. Heller American Physical Society & BNL Modern Challenges for Lattice Field Theory
V cb : experimental and theoretical highlights. Marina Artuso Syracuse University
V cb : experimental and theoretical highlights Marina Artuso Syracuse University 1 The method b q W - e, µ, ν c or u q τ Ultimate goal: a precise determination of V cb The challenge: precise evaluation
A New Measurement of η b (1S) From ϒ(3S) Radiative Decay at CLEO
A New Measurement of η b (1S) From ϒ(S) Radiative Decay at CLEO Sean Dobbs (for the CLEO Collaboration) Northwestern University, Evanston, IL 628, USA arxiv:11.228v1 [hep-ex] 1 Jan 21 Abstract. Using CLEO
Non-local 1/m b corrections to B X s γ
Non-local 1/m b corrections to B X s γ Michael Benzke TU München September 16, 2010 In collaboration with S. J. Lee, M. Neubert, G. Paz Michael Benzke (JGU) Non-local 1/m b corrections to B X s γ TU München
Relativistic correction to the static potential at O(1/m)
Relativistic correction to the static potential at O(1/m) Miho Koma (Inst. f. Kernphysik, Mainz Univ.) Yoshiaki Koma, Hartmut Wittig Lattice 2007, Regensburg, 30 July 2007 We investigate the relativistic
Heavy quarkonium in a weaky-coupled plasma in an EFT approach
Heavy quarkonium in a weaky-coupled plasma in an EFT approach Jacopo Ghiglieri TU München & Excellence Cluster Universe in collaboration with N. Brambilla, M.A. Escobedo, J. Soto and A. Vairo 474th WE
Corrections of Order β 3 0α 3 s to the Energy Levels and Wave Function
005 International Linear Collider Workshop - Stanford U.S.A. Corrections of Order β 0α s to the Energy Levels and Wave Function M. Steinhauser Institut für Theoretische Teilchenphysik Universität Karlsruhe
Richard Williams C. S. Fischer, W. Heupel, H. Sanchis-Alepuz
Richard Williams C. S. Fischer, W. Heupel, H. Sanchis-Alepuz Overview 2 1.Motivation and Introduction 4. 3PI DSE results 2. DSEs and BSEs 3. npi effective action 6. Outlook and conclusion 5. 3PI meson
arxiv: v1 [hep-ph] 21 Sep 2007
![arxiv: v1 [hep-ph] 21 Sep 2007](/thumbs/89/98521563.jpg "arxiv: v1 [hep-ph] 21 Sep 2007")
The QCD potential Antonio Vairo arxiv:0709.3341v1 [hep-ph] 1 Sep 007 Dipartimento di Fisica dell Università di Milano and INFN, via Celoria 16, 0133 Milano, Italy IFIC, Universitat de València-CSIC, Apt.
String calculation of the long range Q Q potential
String calculation of the long range Q Q potential Héctor Martínez in collaboration with N. Brambilla, M. Groher (ETH) and A. Vairo April 4, 13 Outline 1 Motivation The String Hypothesis 3 O(1/m ) corrections
Light Meson spectrum with Nf=2+1 dynamical overlap fermions
Light Meson spectrum with Nf=2+1 dynamical overlap fermions Jun Noaki (KEK) for JLQCD-TWQCD Collaborations: S.Aoki, T-W.Chiu, H.Fukaya, S.Hashimoto, T-H.Hsieh, T.Kaneko, H.Matsufuru, T.Onogi, E.Shintani
A Minimal Composite Goldstone Higgs model
A Minimal Composite Goldstone Higgs model Lattice for BSM Physics 2017, Boston University Plan of the talk Introduction to composite Goldstone Higgs models Lattice results for the SU(2) Goldstone Higgs
Mass Components of Mesons from Lattice QCD
Mass Components of Mesons from Lattice QCD Ying Chen In collaborating with: Y.-B. Yang, M. Gong, K.-F. Liu, T. Draper, Z. Liu, J.-P. Ma, etc. Peking University, Nov. 28, 2013 Outline I. Motivation II.
High-Precision Nonperturbative QCD
High-Precision Nonperturbative QCD Peter Lepage Cornell University. G.P. Lepage, High Precision Nonperturbative QCD at the SLAC Summer Institute (August 2002). p.1/77 Why High-Precision and Nonperturbative?.
Quarkonium Hybrids. Joan Soto. Universitat de Barcelona ) Departament de Física Quàntica i Astrofísica Institut de Ciències del Cosmos
Quarkonium Hybrids Joan Soto Universitat de Barcelona ) Departament de Física Quàntica i Astrofísica Institut de Ciències del Cosmos INT-18-1b, Seattle, 05/29/18 Rubén Oncala, JS, Phys. Rev. D 96, 014004
Calculation of decay constant using gradient flow, towards the Kaon bag parameter. University of Tsukuba, A. Suzuki and Y.
Calculation of decay constant using gradient flow, towards the Kaon bag parameter University of Tsukuba, A. Suzuki and Y. Taniguchi Contents Goal : Calculation of B K with Wilson fermion using gradient
from B -Factories A. Oyanguren (IFIC U. Valencia) BaBar Collaboration
Charm Form Factors from B -Factories A. Oyanguren (IFIC U. Valencia) BaBar Collaboration Purpose: Charm Form Factors - Validate Lattice-QCD calculations - Discriminate between models describing hadronic
The light hadron spectrum from lattice QCD
Ch. Hoelbling with S. Durr Z. Fodor J. Frison S. Katz S. Krieg T. Kurth L. Lellouch Th. Lippert K. Szabo G. Vulvert The Budapest-Marseille-Wuppertal collaboration Rab 2008 Outline 1 Motivation 2 Setup
BaBar s Contributions. Veronique Ziegler Jefferson Lab
BaBar s Contributions Veronique Ziegler Jefferson Lab BaBar last day of running charm light quark heavy quark 2 3 _ Before 2003, 4 cs mesons known 2 S-wave mesons, D s (J P = 0 ) and D s (1 ) 2 P-wave
MESON SPECTROSCOPY RESULTS
MESON SPECTROSCOPY RESULTS J. Rosner, at Lattice Meets Experiment, Fermilab, April 26 27, 2010 Some results which can be compared to lattice predictions: 1 1 P 1 (c c) h c mass, production, decays (CLEO,
Charmonium Spectroscopy at BESIII
Charmonium Spectroscopy at BESIII Hu Liu (on behalf of the BESIII Collaboration) Institute of High Energy Physics, Beijing, China 8 th QWG @GSI 05-10-2011 Slide 1 Outline Brief Introduction of BEPCII &
Lattice QCD Calculations for Quark Flavor Physics. Matthew Wingate Institute for Nuclear Theory University of Washington
Lattice QCD Calculations for Quark Flavor Physics Matthew Wingate Institute for Nuclear Theory University of Washington work done with A. Gray, E. Gulez, J. Shigemitsu (Ohio State) C. T. H. Davies (Glasgow)
CHARMED BOTTOM BARYON SPECTROSCOPY. Zachary S. Brown, William Detmold, Stefan Meinel, Konstantinos Orginos
CHARMED BOTTOM BARYON SPECTROSCOPY Zachary S. Brown, William Detmold, Stefan Meinel, Konstantinos Orginos 1 OUTLINE Landscape of heavy baryon spectroscopy Details of our calculation Extrapolations Results
CLEO Charmonium Results
CLEO Charmonium Results Hanna Mahlke Cornell University Ithaca, NY Quarkonium Working Group Meeting 10/17-20/07 DESY, Hamburg The Landscape All states below DD threshold observed 1-- states known best,
2. HEAVY QUARK PRODUCTION
2. HEAVY QUARK PRODUCTION In this chapter a brief overview of the theoretical and experimental knowledge of heavy quark production is given. In particular the production of open beauty and J/ψ in hadronic
MILC results and the convergence of the chiral expansion
MILC results and the convergence of the chiral expansion MILC Collaboration + (for part) HPQCD, UKQCD Collaborations Benasque Center for Science, July 27, 2004 p.1 Collaborators MILC Collaboration: C.
Search for Dark Particles at Belle and Belle II
Search for Dark Particles at Belle and Belle II Igal Jaegle University of Florida for the Belle and Belle II Collaborations International Workshop on ee collisions from Phi to Psi June 6 3, 17 Mainz, Germany
B-meson decay constants with domain-wall light quarks and nonperturbatively tuned relativistic b-quarks
B-meson decay constants with domain-wall light quarks and nonperturbatively tuned relativistic b-quarks RBC and UKQCD collaborations Oliver Witzel Center for Computational Science Lattice 2013, Mainz,
arxiv: v1 [hep-lat] 31 Oct 2014
![arxiv: v1 [hep-lat] 31 Oct 2014](/thumbs/73/68264514.jpg "arxiv: v1 [hep-lat] 31 Oct 2014")
arxiv:4.88v [hep-lat] 3 Oct 24 Zoltán Fodor University of Wuppertal, Department of Physics, Wuppertal D-4297, Germany Jülich Supercomputing Center, Forschungszentrum Jülich, Jülich D-52425, Germany Eötvös
Ruben Sandapen (Acadia & Mt. A) in collaboration with M. Ahmady & F. Chishtie. September 5 th 2016
Holographic Distribution Amplitudes for mesons Ruben Sandapen (Acadia & Mt. A) in collaboration with M. Ahmady & F. Chishtie Diffraction 2016 Progress in QCD session September 5 th 2016 1 Outline Overview
lattice QCD and the hadron spectrum Jozef Dudek ODU/JLab
lattice QCD and the hadron spectrum Jozef Dudek ODU/JLab the light meson spectrum relatively simple models of hadrons: bound states of constituent quarks and antiquarks the quark model empirical meson
Form Factors for Rare B Decays from Lattice QCD
Form Factors for Rare B Decays from Lattice QCD Matthew Wingate DAMTP, Cambridge Outline Motivation Form factors Rare (FCNC) decays Preliminary results Summary Two views of a weak decay Phenomenologist:
DAMTP, University of Cambridge HPQCD
Outline of Talk Phenomenological Motivation Overview of lattice methodology Results Future work -Motivation The CKM Matrix After EW symmetry breaking the standard model in the mass basis contains the flavour
New Charmonium Results from CLEO c
New Charmonium Results from CLEO c Helmut Vogel (for the CLEO Collaboration) Carnegie Mellon University CHARM09, Leimen, Germany One of the last CLEO c events (taken on 3 March 2008) e+e- Ds*+Ds- CLEO
Precise determination of the lattice spacing in full lattice QCD
Precise determination of the lattice spacing in full lattice QCD None of these quantities can be computed as accurately as r 1 /a in simulations, but we can combine simulation rearxiv:0910.1229v1 [hep-lat]
b hadron properties and decays (ATLAS)
b hadron properties and decays (ATLAS) Milind V. Purohit Univ. of South Carolina, USA for the ATLAS collaboration M. V. Purohit SM@LHC 2012 1 Outline Detector, Di muon trigger, Performance: Mass, vertex
Study of the ISR reactions at BaBar!
Study of the ISR reactions at BaBar! E.Solodov for BaBar collaboration! Budker INP SB RAS, Novosibirsk, Rusia! HADRON2011, Munich, Germany Motivation! - Low energy e + e cross section dominates in hadronic
Inclusive B decay Spectra by Dressed Gluon Exponentiation. Einan Gardi (Cambridge)
Inclusive B decay Spectra by Dressed Gluon Exponentiation Plan of the talk Einan Gardi (Cambridge) Inclusive Decay Spectra Why do we need to compute decay spectra? Kinematics, the endpoint region and the
Lattice QCD study of Radiative Transitions in Charmonium
Lattice QCD study of Radiative Transitions in Charmonium (with a little help from the quark model) Jo Dudek, Jefferson Lab with Robert Edwards & David Richards Charmonium spectrum & radiative transitions
Effective Field Theory
Effective Field Theory Iain Stewart MIT The 19 th Taiwan Spring School on Particles and Fields April, 2006 Physics compartmentalized Quantum Field Theory String Theory? General Relativity short distance
Lattice QCD. QCD 2002, I. I. T. Kanpur, November 19, 2002 R. V. Gavai Top 1
Lattice QCD QCD 2002, I. I. T. Kanpur, November 19, 2002 R. V. Gavai Top 1 Lattice QCD : Some Topics QCD 2002, I. I. T. Kanpur, November 19, 2002 R. V. Gavai Top 1 Lattice QCD : Some Topics Basic Lattice
A short overview on strong interaction and quantum chromodynamics
A short overview on strong interaction and quantum chromodynamics Christoph Klein Universität Siegen Doktorandenseminar 08.10.2008 Christoph Klein (Universität Siegen) QCD and strong interaction Doktorandenseminar
PoS(LATTICE 2013)500. Charmonium, D s and D s from overlap fermion on domain wall fermion configurations
Charmonium, D s and D s from overlap fermion on domain wall fermion configurations,, Y. Chen, A. Alexandru, S.J. Dong, T. Draper, M. Gong,, F.X. Lee, A. Li, 4 K.F. Liu, Z. Liu, M. Lujan, and N. Mathur
Two-loop evaluation of large Wilson loops with overlap fermions: the b-quark mass shift, and the quark-antiquark potential
Two-loop evaluation of large Wilson loops with overlap fermions: the b-quark mass shift, and the quark-antiquark potential Department of Physics, University of Cyprus, Nicosia CY-678, Cyprus E-mail: ph00aa@ucy.ac.cy
Bare Perturbation Theory, MOM schemes, finite volume schemes (lecture II)
Bare Perturbation Theory, MOM schemes, finite volume schemes (lecture II) Stefan Sint Trinity College Dublin INT Summer School Lattice QCD and its applications Seattle, August 16, 2007 Stefan Sint Bare
Measurements of the W Boson Mass and Trilinear Gauge Boson Couplings at the Tevatron
Measurements of the Boson Mass and Trilinear Gauge Boson Couplings at the Tevatron John Ellison University of California, Riverside, USA Selection of and Z events Measurement of the mass Tests of the gauge
On a Singular Solution in Higgs Field (2) -A Representation of Certain f 0 Mesons Masses.
On a Singular Solution in Higgs Field () -A Representation of Certain f Mesons Masses. Kazuyoshi KITAZAWA Mitsui Chemicals (DPF Meeting 11, August 9-13, Brown Univ.) Contents We have recently discussed
Overview of Light-Hadron Spectroscopy and Exotics
Overview of Light-Hadron Spectroscopy and Eotics Stefan Wallner Institute for Hadronic Structure and Fundamental Symmetries - Technical University of Munich March 19, 018 HIEPA 018 E COMPASS 1 8 Introduction
Charmonium Spectroscopy and Decay at CLEO c
Charmonium Spectroscopy and Decay at CLEO c Helmut Vogel Carnegie Mellon University CLEO c at CESR (for the CLEO Collaboration) PHIPSI09, IHEP, Beijing, 13 Oct 2009 Acknowledgments and thanks to: Matt
Mass of Heavy Mesons from Lattice QCD
Mass of Heavy Mesons from Lattice QCD David Richards Jefferson Laboratory/Hadron Spectrum Collaboration Temple, March 2016 Outline Heavy Mesons Lattice QCD Spectroscopy Recipe Book Results and insight
Discovery of charged bottomonium-like Z b states at Belle
Discovery of charged bottomonium-like Z b states at Belle Antje Peters 1 Christoph Rosenbaum 2 1 Goethe-Universität Frankfurt am Main 2 Justus-Liebig-Universität Giessen HGS-HIRe Lecture Week on Hadron
arxiv: v1 [hep-lat] 23 Nov 2018
![arxiv: v1 [hep-lat] 23 Nov 2018](/thumbs/91/104804062.jpg "arxiv: v1 [hep-lat] 23 Nov 2018")
B c spectroscopy using highly improved staggered quarks arxiv:1811.09448v1 [hep-lat] 23 Nov 2018 INFN, Sezione di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Roma RM, Italy E-mail: andrew.lytle@roma2.infn.it
Probing the Chiral Limit in 2+1 flavor Domain Wall Fermion QCD
Probing the Chiral Limit in 2+1 flavor Domain Wall Fermion QCD Meifeng Lin for the RBC and UKQCD Collaborations Department of Physics Columbia University July 29 - August 4, 2007 / Lattice 2007 @ Regensburg
arxiv:hep-ph/ v1 5 Sep 2006
Masses of the η c (ns) and η b (ns) mesons arxiv:hep-ph/0609044v1 5 Sep 2006 A.M.Badalian 1, B.L.G.Bakker 2 1 Institute of Theoretical and Experimental Physics, Moscow, Russia 2 Department of Physics and
On the definition and interpretation of a static quark anti-quark potential in the colour-adjoint channel
On the definition and interpretation of a static quark anti-quark potential in the colour-adjoint channel Effective Field Theory Seminar Technische Universität München, Germany Marc Wagner, Owe Philipsen
Hadronic physics from the lattice
Hadronic physics from the lattice Chris Michael c.michael@liv.ac.uk University of Liverpool Hadronic physics from the lattice p.1/24 Hadronic Structure - Introduction What are hadrons made of? Is a meson
Expected precision in future lattice calculations p.1
Expected precision in future lattice calculations Shoji Hashimoto (KEK) shoji.hashimoto@kek.jp Super-B Workshop, at University of Hawaii, Jan 19 22, 2004 Expected precision in future lattice calculations
Towards thermodynamics from lattice QCD with dynamical charm Project A4
Towards thermodynamics from lattice QCD with dynamical charm Project A4 Florian Burger Humboldt University Berlin for the tmft Collaboration: E.-M. Ilgenfritz (JINR Dubna), M. Müller-Preussker (HU Berlin),
Dileptonic Bottomonium Decays: Higgs-Boson Signal
: Higgs-Boson Signal Saime Kerman Dokuz Eylul University, Izmir, TURKEY IOPAS HEP Theory Group Seminar 14 December 2016, Academia Sinica Saime Kerman Dokuz Eylul University, Izmir, TURKEY : Higgs-Boson
arxiv: v2 [hep-ph] 17 May 2010
![arxiv: v2 [hep-ph] 17 May 2010](/thumbs/91/107010082.jpg "arxiv: v2 [hep-ph] 17 May 2010")
Heavy χ Q tensor mesons in QCD arxiv:00.767v [hep-ph] 7 May 00 T. M. Aliev a, K. Azizi b, M. Savcı a a Physics Department, Middle East Technical University, 0653 Ankara, Turkey b Physics Division, Faculty
Physics at LHC. lecture one. Sven-Olaf Moch. DESY, Zeuthen. in collaboration with Martin zur Nedden
Physics at LHC lecture one Sven-Olaf Moch Sven-Olaf.Moch@desy.de DESY, Zeuthen in collaboration with Martin zur Nedden Humboldt-Universität, October 22, 2007, Berlin Sven-Olaf Moch Physics at LHC p.1 LHC
Semileptonic B decays at BABAR
at (University of Oregon) representing collaboration March 4, 4 1.5 excluded area has
D semi-leptonic and leptonic decays at BESIII
Institute of High Energy Physics, Chinese Academy of Sciences E-mail: mahl@ihep.ac.cn During 2010 and 2011, a data sample of 2.92 fb 1 was accumulated at s = 3.773 GeV by the BESIII detector operating
J/Ψ-Production in γγ-collisions at NLO. Michael Klasen LPSC Grenoble April 19, 2005
J/Ψ-Production in γγ-collisions at NLO Michael Klasen LPSC Grenoble April 19, 2005 CERN / Fréjus LPSC ILL ESRF April 19, 2005 Michael Klasen, LPSC Grenoble 2 Research at LPSC Grenoble Astroparticles: Particles: