Target Mass Effects in Parton Quasi-Distributions

Authors

A. V. Radyushkin, Old Dominion UniversityFollow

Document Type

Article

Publication Date

2017

DOI

10.1016/j.physletb.2017.05.024

Publication Title

Physics Letters B

Volume

770

Pages

514-522

Abstract

We study the impact of non-zero (and apparently large) value of the nucleon mass M on the shape of parton quasi-distributions Q(y, p₃), in particular on its change with the change of the nucleon momentum p_3. We observe that the usual target-mass corrections induced by the M-dependence of the twist-2 operators are rather small. Moreover, we show that within the framework based on parametrizations by transverse momentum dependent distribution functions (TMDs) these corrections are canceled by higher-twist contributions. We identify a novel source of kinematic target-mass dependence of TMDs and build models corrected for such dependence. We find that resulting changes may be safely neglected for p₃ ≳ 2M. (C) 2017 The Author. Published by Elsevier B.V.

Comments

This is an open access article under the CC BY license.

(http://creativecommons.org/licenses/by/4.0/).

Original Publication Citation

Radyushkin, A. V. (2017). Target mass effects in parton quasi-distributions. Physics Letters B, 770, 514-522. doi:10.1016/j.physletb.2017.05.024

ORCID

0000-0002-9326-1300 (Radyushkin)

Repository Citation

Radyushkin, A. V., "Target Mass Effects in Parton Quasi-Distributions" (2017). Physics Faculty Publications. 26.
https://digitalcommons.odu.edu/physics_fac_pubs/26