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Title: Diffractive dijet production and Wigner distributions from the color glass condensate

Journal Article · · Physical Review D

Experimental processes that are sensitive to parton Wigner distributions provide a powerful tool to advance our understanding of proton structure. In this work, we compute gluon Wigner and Husimi distributions of protons within the color glass condensate framework, which includes a spatially dependent McLerran-Venugopalan initial configuration and the explicit numerical solution of the Jalilian-Marian–Iancu–McLerran–Weigert–Leonidov–Kovner equations. We determine the leading anisotropy of the Wigner and Husimi distributions as a function of the angle between the impact parameter and transverse momentum. We study experimental signatures of these angular correlations at a proposed electron-ion collider by computing coherent diffractive dijet production cross sections in e + p collisions within the same framework. Specifically, we predict the elliptic modulation of the cross section as a function of the relative angle between the nucleon recoil and dijet transverse momentum for a wide kinematical range. We further predict its dependence on the collision energy, which is dominated by the growth of the proton with decreasing x .

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0012704; AC02-05CH11231
OSTI ID:
1505661
Alternate ID(s):
OSTI ID: 1525405; OSTI ID: 1542904
Report Number(s):
BNL-211710-2019-JAAM; PRVDAQ; 074004
Journal Information:
Physical Review D, Journal Name: Physical Review D Vol. 99 Journal Issue: 7; ISSN 2470-0010
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 47 works
Citation information provided by
Web of Science

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Imaging the nucleus with high-energy photons journal October 2019

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