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Title: Accessing the gluonic structure of light nuclei at a future electron-ion collider

Journal Article · · Physical Review C

In this paper, we show how exclusive vector meson production off light ions can be used to probe the spatial distribution of small-x gluons in the deuteron and 3He wave functions. In particular, we demonstrate how short range repulsive nucleon-nucleon interactions affect the predicted coherent J/Ψ production spectra. Fluctuations of the nucleon substructure are shown to have a significant effect on the incoherent cross section above |t| ≳ 0.2 GeV2. By explicitly performing the JIMWLK evolution, we predict the x-dependence of coherent and incoherent cross sections in the EIC energy range. Besides the increase of the average size of the nucleus with decreasing x, both the growth of the nucleons and subnucleonic hot spots are visible in the cross sections. Finally, the decreasing length scale of color charge fluctuations with decreasing x is also present, but may not be observable for |t| < 1 GeV2, if subnucleonic spatial fluctuations are present.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0012704; AC02-05CH11231
OSTI ID:
1582499
Alternate ID(s):
OSTI ID: 1580269
Report Number(s):
BNL-212436-2019-JAAM; PRVCAN; 015203
Journal Information:
Physical Review C, Journal Name: Physical Review C Vol. 101 Journal Issue: 1; ISSN 2469-9985
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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