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arXiv · 1808.02163

Holographic $J/ψ$ production near threshold and the proton mass problem

Yoshitaka Hatta·Di-Lun Yang
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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.

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Yoshitaka Hatta, Di-Lun Yang. 2018-08-24. Holographic $J/ψ$ production near threshold and the proton mass problem. https://doi.org/10.1103/physrevd.98.074003

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