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4 papers
Helicity-dependent distribution of strange quarks in the proton from nonlocal chiral effective theory
Fangcheng He, Chueng-Ryong Ji, W. Melnitchouk +4
The helicity-dependent strange quark distribution in the proton, , is calculated in a nonlocal chiral SU(3) effective field theory. The hadronic proton to meson plus octet or d…
Strange quark helicity in the proton from chiral effective theory
X. G. Wang, Chueng-Ryong Ji, W. Melnitchouk +3
We compute the helicity-dependent strange quark distribution in the proton in the framework of chiral effective theory. Starting from the most general chiral SU(3) Lagrangian that…
Parton distributions from nonlocal chiral SU(3) effective theory: Flavor asymmetries
Y. Salamu, Chueng-Ryong Ji, W. Melnitchouk +3
Using recently derived results for one-loop hadronic splitting functions from a nonlocal implementation of chiral effective theory, we study the contributions from pseudoscalar mes…
Parton distributions from nonlocal chiral SU(3) effective theory. I. Splitting functions
Y. Salamu, Chueng-Ryong Ji, W. Melnitchouk +2
We present a new formulation of pseudoscalar meson loop corrections to nucleon parton distributions within a nonlocal covariant chiral effective field theory, including contributio…