Journal
PHYSICAL REVIEW D
Volume 98, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.98.074003
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Funding
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [de-sc0012704]
- RIKEN Foreign Postdoctoral Researcher program
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It has been suggested that the production of a heavy quarkonium near threshold in electron-proton scattering can shed light on the origin of the proton mass via the QCD trace anomaly. We study the photoproduction of J/psi off the proton using gauge/string duality and demonstrate that the t dependence of the differential cross section ds/dt at small t is a sensitive probe of the trace anomaly.
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