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