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Sep 24 – 29, 2023
US/Eastern timezone

Update on the nucleon quark distribution functions calculation with a confining NJL model adding pseudoscalar and vector diquarks

Sep 26, 2023, 12:00 PM
30m
Junior Ballroom D1-D2 (Durham Convention Center)

Junior Ballroom D1-D2

Durham Convention Center

Talk Nucleon helicity structure Nucleon Helicity Structure

Speaker

Bailing Ma (Argonne National Lab)

Description

We present an update on the calculation of nucleon quark distribution functions using a confining Nambu-Jona-Lasinio (NJL) model. Originally developed for nucleons, the NJL model is now seen as an effective theory of low-energy QCD that is based on quark degrees of freedom. The nucleon bound state is obtained by solving the Faddeev equation in the quark–diquark approximation, where we include not only the scalar and axial vector diquark channels but also the pseudoscalar and vector diquarks. We present the results of our calculations for the unpolarized and polarized quark light-front momentum distribution functions and compare them to the available empirical parametrizations.

Primary author

Bailing Ma (Argonne National Lab)

Presentation materials