Contribution of Coulomb interaction to elastic pp and pp<overline> scattering in holographic QCD

被引：2
作者：
Zhang, Yu-Peng [1 ]
Chen, Xun [1 ]
Li, Xiao-Hua [1 ]
Watanabe, Akira [2 ]
机构：
[1] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China
[2] Univ South China, Sch Math & Phys, Hengyang 421001, Peoples R China
来源：
PHYSICAL REVIEW D | 2023年 / 108卷 / 06期
基金：
中国国家自然科学基金;
关键词：
PROTON-PROTON SCATTERING; TOTAL CROSS-SECTION; NUCLEAR INTERFERENCE; RHO-PARAMETER; ENERGY; TEV; POMERON; LHC;
D O I：
10.1103/PhysRevD.108.066001
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The differential cross sections of elastic proton-proton (pp) and proton-antiproton (pp<overline> ) scattering are studied in a holographic QCD model, considering the strong and Coulomb interaction in the Regge regime. Based on previous studies of strong interactions described in terms of Pomeron and Reggeon exchange, we add the contribution of Coulomb interaction described by photon exchange. We present the momentum transfer dependence of the contribution rates for each component, especially for the Coulomb-nuclear interference, which refers to the cross term between both interactions. For the adjustable parameters for the strong interaction, we can adopt the values determined in previous studies, and there are no extra adjustable parameters that need to be determined for the Coulomb interaction. It is presented that the resulting differential cross sections are consistent with the data for pp and pp<overline> scattering.
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页数：10
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