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Type: Journal article
Title: Gluon EMC effects in nuclear matter
Author: Wang, X.-G.
Bentz, W.
Cloet, I.C.
Thomas, A.W.
Citation: Journal of Physics G: Nuclear and Particle Physics, 2022; 49(3):03LT01-1-03LT01-10
Publisher: IOP Publishing
Issue Date: 2022
ISSN: 0954-3899
Statement of
X G Wang, W Bentz, I C Cloët and A W Thomas
Abstract: We investigate the gluonic structure of nuclei within a mean-field model of nuclear structure based upon the modification of the structure of a bound nucleon, with the nucleon described by the Nambu–Jona-Lasinio model. This approach has been shown to reproduce the European Muon Collaboration (EMC) effect, involving the ratio of the spin-independent structure functions of a heavier nucleus to that of the deuteron. It also predicts a significant nuclear modification for the spin structure functions, known as the polarized EMC effect. Here we report sizeable nuclear modifications of the gluon distributions (a 'gluon EMC effect') for the ratios of both the unpolarized and polarized gluon distributions in nuclear matter to those of a free nucleon.
Keywords: Gluon EMC effect; NJL model; mean-field modification
Rights: © 2022 IOP Publishing Ltd
DOI: 10.1088/1361-6471/ac4c90
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Appears in Collections:Physics publications

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