期刊
PHYSICAL REVIEW D
卷 101, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.101.114004
关键词
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资金
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-SC0012704]
- Laboratory Directed Research and Development (LDRD) funds from Brookhaven Science Associates
- National Science Center in Poland [2019/33/B/ST2/02588]
We propose a novel approach to compute the cross section of near-threshold J/psi and Upsilon production in electron-proton scattering at large photon virtualities Q(2) based on an operator product expansion. We show that the process can be used to extract the gluon part of the D-term gravitational form factor of the proton. At the subleading level, it is also sensitive to the trace anomaly effect of QCD.
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