超外围重离子碰撞中光子诱导质子和反质子对的产生

IF 7.5 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Science China Physics, Mechanics & Astronomy Pub Date : 2025-09-08 DOI:10.1007/s11433-025-2720-6

Cheng Zhang, Limao Zhang, Dingyu Shao

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引用次数: 0

摘要

采用联合碰撞参数和横向动量依赖的形式，研究了相对论重离子对撞机（RHIC）超外围碰撞中光子-光子融合产生的质子-反质子（\(p\overline{p}\)）对。我们考虑质子交换，s通道共振和手包机制，预测\(p\overline{p}\)生产的差异分布。我们的理论预测可以在RHIC的未来测量中进行测试，以增强我们对强电磁场中光子-光子相互作用的理解。

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Photon induced proton and anti-proton pair production with ultraperipheral heavy ion collisions at RHIC

We investigate proton-antiproton (\(p\overline{p}\)) pair production via photon-photon fusion in the ultra-peripheral collisions at the relativistic heavy ion collider (RHIC), employing a joint impact parameter and transverse momentum dependent formalism. We consider proton exchange, s-channel resonance, and hand-bag mechanisms, predicting differential distributions of \(p\overline{p}\) production. Our theoretical predictions can be tested against future measurements at RHIC to enhance our understanding of photon-photon interactions in strong electromagnetic fields.

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来源期刊

Science China Physics, Mechanics & Astronomy PHYSICS, MULTIDISCIPLINARY-

CiteScore

10.30

自引率

6.20%

发文量

4047

审稿时长

3 months

期刊介绍： Science China Physics, Mechanics & Astronomy, an academic journal cosponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China, and published by Science China Press, is committed to publishing high-quality, original results in both basic and applied research. Science China Physics, Mechanics & Astronomy, is published in both print and electronic forms. It is indexed by Science Citation Index. Categories of articles: Reviews summarize representative results and achievements in a particular topic or an area, comment on the current state of research, and advise on the research directions. The author’s own opinion and related discussion is requested. Research papers report on important original results in all areas of physics, mechanics and astronomy. Brief reports present short reports in a timely manner of the latest important results.