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

被引：84

作者：

Hatta, Yoshitaka ^{[1
,2
]}

Yang, Di-Lun ^{[1
,3
]}

机构：

[1] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

[2] Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA

[3] RIKEN, Nishina Ctr, Wako, Saitama 3510198, Japan

来源：

PHYSICAL REVIEW D | 2018年 / 98卷 / 07期

关键词：

D-TERM; PHOTOPRODUCTION; NUCLEON; QCD; DECOMPOSITION;

D O I：

10.1103/PhysRevD.98.074003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：13

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