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<p>We investigate proton-antiproton (<InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(p\overline{p}\)</EquationSource> </InlineEquation>) 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, <i>s</i>-channel resonance, and hand-bag mechanisms, predicting differential distributions of <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\(p\overline{p}\)</EquationSource> </InlineEquation> production. Our theoretical predictions can be tested against future measurements at RHIC to enhance our understanding of photon-photon interactions in strong electromagnetic fields.</p>

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

  • 期刊论文

  • 发表日期：

    2025年9月8日

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  • Cheng Zhang,
  • Limao Zhang,
  • Dingyu Shao

摘要

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.