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Title Nucleon form factors and parton distributions in nonlocal chiral effective theory
Authors P. Wang, F. He, Chueng Ji, Wolodymyr Melnitchouk
JLAB number JLAB-THY-22-3645
LANL number arXiv:2206.09361
Other number DOE/OR/23177-5523
Document Type(s) (Journal Article) 
Associated with EIC: No
Supported by Jefferson Lab LDRD Funding: No
Funding Source: Nuclear Physics (NP)
 

Journal
Compiled for Progress in Particle and Nuclear Physics
Volume 129
Page(s) 104017
Refereed
Publication Abstract: We present a review of recent applications of nonlocal chiral effective theory to hadron structure studies. Starting from a nonlocal meson-baryon effective chiral Lagrangian, we show how the introduction of a correlation function representing the finite extent of hadrons regularizes the meson loop integrals and introduces momentum dependence in vertex form factors in a gauge invariant manner. We apply the framework to the calculation of nucleon electromagnetic form factors, unpolarized and polarized parton distributions, as well as transverse momentum dependent distributions and generalized parton distributions. Assuming that the nonlocal behavior is a general property of all interactions, we also discuss the application to the lepton anomalous magnetic moment in nonlocal QED.
Experiment Numbers: other
Group: THEORY CENTER
Document: pdf
DOI: https://doi.org/10.1016/j.ppnp.2022.104017
Accepted Manuscript: 2206.09361.pdf
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