Top-philic ALP phenomenology at the LHC

Abstract

I present an exploration of the LHC phenomenology of the so-called top-philic ALP in the mass range between tens and hundreds of GeV. Searches through resonant production, such as ALP production in association with a $t\bar{t}$ pair are shown to be complementary to precision measurements of $t\bar{t}$ and $t\bar{t}t\bar{t}$ final states. The case where the ALP decays invisibly is also considered looking at final states with missing energy signatures.

Comments: Talk at the 16th International Workshop on Top Quark Physics (Top2023), 24-29 September 2023