Constraining off-shell production of axion-like particles with $Zγ$ and $WW$ differential cross-section measurements

• DOI: 10.48550/arxiv.2106.10085
• Publication Date: 2021-01-01
• Authors: S. Carrá; V. Goumarre; R. Gupta; S. Heim; B. Heinemann; J. T. Kuechler; F. Meloni; Pablo Quílez; Y. C. Yap
• Keywords: Scattering cross-section; Vector boson

This article describes a search for low-mass axion-like particles (ALPs) at the Large Hadron Collider (LHC). If ALPs were produced LHC via gluon-gluon fusion and decayed to bosons, energy dependence of measured diboson cross-sections would differ from Standard Model expectation. Measurements $WW$ $Z\gamma$ differential by ATLAS collaboration are interpreted constrain ALP couplings $W$-, $Z$-bosons photons assuming gluon-gluon-fusion production.