Journal
PHYSICAL REVIEW LETTERS
Volume 128, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.128.182002
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Funding
- U.S. Department of Energy [DE-SC0012704]
- Laboratory Directed Research and Development (LDRD) funds from Brookhaven Science Associates
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics and Office of Advanced Scientific Computing Research within the framework of Scientific Discovery through Advance Computing (SciDAC) award Computing the Properties of Matter with Leade
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We propose a novel observable to detect the gluon orbital angular momentum (OAM) that constitutes the proton spin sum rule experimentally. We investigate the longitudinal double spin asymmetry in exclusive dijet production in electron-proton scattering and find that the cos 0 azimuthal angle correlation between the scattered electron and proton is a sensitive probe of the gluon OAM at small x and its interplay with the gluon helicity. We also provide a numerical estimate of the cross section for the Electron-Ion Collider kinematics.
We propose a novel observable for the experimental detection of the gluon orbital angular momentum (OAM) that constitutes the proton spin sum rule. We consider longitudinal double spin asymmetry in exclusive dijet production in electron-proton scattering and demonstrate that the cos 0 azimuthal angle correlation between the scattered electron and proton is a sensitive probe of the gluon OAM at small x and its interplay with the gluon helicity. We also present a numerical estimate of the cross section for the kinematics of the Electron-Ion Collider.
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