Isovector helicity quark quasi-distributions inside a large-Nc nucleon

초록

In this letter, we report the results for the isovector polarized quark quasi-distribution functions Au(x, v) - Ad(x, v) in the large-Nc limit, calculated within the chiral quark-soliton model. It is shown that the polarized quark quasi-distributions present good convergence to the light-cone PDFs in the limit of the nucleon boost momentum PN -> infinity (or the velocity v -> 1), compared to the case of the unpolarized isosinglet distributions.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.

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