Exploring muonphilic ALPs at muon colliders

Abstract Axion-like particles (ALPs) are new that extend beyond the standard model (SM) and highly motivated. When considering ALPs within an effective field theory framework, their couplings with SM can be studied independently. It is a daunting task to search for GeV-scale coupled muons in collider experiments because coupling proportional muon mass. However, recent study by Altmannshofer, Dror, Gori (2022) highlighted importance of four-point interaction, W-μ-ν μ -a, as well interactions from chiral anomaly which not dependent on These provide opportunity explore muonphilic (μALPs) at GeV scale. We have explored various μALPs production channels colliders decaying into pair muons. Especially, we found neutrinos accompanied μALP most channel electrowek violating (EWV) scenario. In contract, photon plus becomes better electroweak preserving (EWP) scenario there no -a interaction this situation. Most importantly, future bounds EWV much stronger than ones EWP existing exploring 1 ≤ m M W $. Content work may used under terms Creative Commons Attribution 3.0 licence. Any further distribution must maintain attribution author(s) title work, journal citation DOI. Article funded SCOAP3 published licence Chinese Physical Society Institute High Energy Physics Academy Science Modern Sciences IOP Publishing Ltd.