Abstract
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/ψ off the proton using gauge/string duality and demonstrate that the t dependence of the differential cross section dσ/dt at small t is a sensitive probe of the trace anomaly.
Original language | English |
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Article number | 074003 |
Journal | Physical Review D |
Volume | 98 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2018 Oct 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)