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On the coupling of axion-like particles to the top quark

Published version
Peer-reviewed

Repository DOI


Type

Article

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Authors

Esser, Fabian 
Madigan, Maeve 
Sanz, Veronica 

Abstract

In this paper we explore the coupling of a light axion-like particle (ALP) to top quarks. We use high-energy LHC probes, and examine both the direct probe to this coupling in associated production of a top-pair with an ALP, and the indirect probe through loop-induced gluon fusion to an ALP leading to top pairs. Using the latest LHC Run II data, we provide the best limit on this coupling. We also compare these limits with those obtained from loop-induced couplings in diboson final tates, finding that the tt¯+MET channel is the best current handle on this coupling.

Description

Keywords

hep-ex, hep-ph, hep-ph

Journal Title

Journal of High Energy Physics (JHEP)

Conference Name

Journal ISSN

1126-6708
1029-8479

Volume Title

Publisher

SpringerOpen