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Spectrum and Bethe-Salpeter amplitudes of baryons from lattice QCD
Jian Liang, Wei Sun, Ying Chen +7
The baryons with are studied on the lattice in the quenched approximation. Their mass levels are ordered as $M_{3/2^+}<M_{3/2^-}\approx M_{1/2^-}<M_{1/2^…
Strange and Charm Quark Spins from Anomalous Ward Identity
Ming Gong, Yi-Bo Yang, Jian Liang +3
We present a calculation of the strange and charm quark contributions to the nucleon spin from the anomalous Ward identity (AWI). It is performed with overlap valence quarks on 2+1…
Diquark mass differences from unquenched lattice QCD
Yujiang Bi, Hao Cai, Ying Chen +4
We calculate diquark correlation functions in the Landau gauge on the lattice using overlap valence quarks and 2+1-flavor domain wall fermion configurations. Quark masses are extra…
Stochastic method with low mode substitution for nucleon isovector matrix elements
Yi-Bo Yang, Andrei Alexandru, Terrence Draper +2
We introduce a stochastic sandwich method with low-mode substitution to evaluate the connected three-point functions. The isovector matrix elements of the nucleon for the axial-vec…
Quark Spin in Proton from Anomalous Ward Indentity
Yi-Bo Yang, Ming Gong, Keh-Fei Liu +1
We report a quark spin calculation from the anomalous Ward identity with overlap fermions on 2+1 flavor dynamical fermion configurations with light sea quark masses. Such a formula…
Phase transition in finite density and temperature lattice QCD
Rui Wang, Ying Chen, Ming Gong +6
We investigate the behavior of the chiral condensate in lattice QCD at finite temperature and finite chemical potential. The study was done using two flavors of light quarks and wi…