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<p>A virtual production of heavy axion-like particles (ALPs) via light-by-light scattering in pp, pPb and Pb collisions at the future 100 TeV collider FCC-hh is studied. Both differential and total cross sections are calculated. The 95% C.L. exclusion limits, as well as 3<i>σ</i> and 5<i>σ</i> discovery limits on an ALP coupling constant versus ALP mass <i>m</i><sub><i>a</i></sub> are given, using integrated luminosities of 30 ab<sup>−1</sup>, 27 pb<sup>−1</sup> and 110 nb<sup>−1</sup>. Our results are compared with the current LHC bounds. The strongest limit on the ALP coupling is obtained if <i>m</i><sub><i>a</i></sub> ≃ 250 GeV for the PbPb collisions, and if <i>m</i><sub><i>a</i></sub> ≃ 1 TeV for pp or pPb collisions. This suggests that the FCC-hh has a great physics potential of searching for the heavy ALPs.</p>

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A search for heavy axion-like particles in light-by-light scattering at the FCC-hh

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月25日

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  • S. C. İnan,
  • A. V. Kisselev

摘要

A virtual production of heavy axion-like particles (ALPs) via light-by-light scattering in pp, pPb and Pb collisions at the future 100 TeV collider FCC-hh is studied. Both differential and total cross sections are calculated. The 95% C.L. exclusion limits, as well as 3σ and 5σ discovery limits on an ALP coupling constant versus ALP mass ma are given, using integrated luminosities of 30 ab−1, 27 pb−1 and 110 nb−1. Our results are compared with the current LHC bounds. The strongest limit on the ALP coupling is obtained if ma ≃ 250 GeV for the PbPb collisions, and if ma ≃ 1 TeV for pp or pPb collisions. This suggests that the FCC-hh has a great physics potential of searching for the heavy ALPs.