Aiming for tops of ALPs with a muon collider

Chigusa, So; Girmohanta, Sudhakantha; Nakai, Yuichiro; Zhang, Yufei

doi:10.1007/jhep01(2024)077

Aiming for tops of ALPs with a muon collider

Journal Article · Tue Jan 16 00:00:00 EST 2024 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/jhep01(2024)077· OSTI ID:2337460

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Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Shanghai Jiao Tong Univ. (China)

Future muon colliders with center-of-mass energy of $$\mathcal{O}$$ (1 – 10) TeV can provide a clean high-energy environment with advantages in searches for TeV-scale axion-like particles (ALPs), pseudo-Nambu-Goldstone bosons associated with spontaneously broken global symmetries, which are widely predicted in physics beyond the Standard Model (SM). We exploit ALP couplings to SM fermions, and guided by unitarity constraints, build a search strategy focusing on the ALP decay to top quark pairs at muon colliders. It is found that a large parameter space of TeV-scale ALPs with TeV-scale decay constants can be probed by utilizing the ALP-top quark coupling.

View Accepted Manuscript (DOE)

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 2337460

Journal Information:: Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 1 Vol. 2024; ISSN 1029-8479

Publisher:: Springer NatureCopyright Statement

Country of Publication:: United States

Language:: English

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