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arXiv · 2502.18912

Interplay of ALP Couplings at a Muon Collider

So Chigusa·Sudhakantha Girmohanta·Yuichiro Nakai·Yufei Zhang
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Abstract

Axion-like particles can couple to Standard Model gluons, electroweak gauge bosons, and massive fermions. A future multi-TeV muon collider provides a favorable environment to probe axion-like particles through multiple production channels, including vector boson fusion via electroweak gauge boson couplings and the top-associated production mediated by direct fermionic couplings. Motivated by the quality issue of the QCD axion, we focus on axion-like particles with masses and decay constants around the TeV scale. We explore how different axion-like particle couplings shape its production and decay modes, revealing a rich and intricate phenomenological landscape.

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So Chigusa, Sudhakantha Girmohanta, Yuichiro Nakai, Yufei Zhang. 2025-02-26. Interplay of ALP Couplings at a Muon Collider. https://doi.org/10.1007/jhep07(2025)003

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