Charged and Pseudoscalar Higgs production at a Muon Collider

TL;DR

This paper explores the production of charged and pseudoscalar Higgs bosons at muon colliders, highlighting enhanced cross-sections at high tanβ and proposing new, more effective production methods compared to traditional approaches.

Contribution

It introduces novel production channels for Higgs bosons at muon colliders, emphasizing their advantages over conventional methods in certain parameter regions.

Findings

Enhanced cross-sections at large tanβ

New production channels for Higgs bosons

Superiority over traditional methods in specific parameter spaces

Abstract

We consider single charged Higgs ($H^{\pm}$) and pseudoscalar Higgs ($A^0$) production in association with a gauge boson at $\mu^+\mu^-$ colliders. We find that the tree-level t-channel and s-channel contributions to $\mu^+\mu^-\to H^{\pm}W^{\mp}, A^0Z$ are enhanced for large values of $\tan\beta$, allowing sizeable cross-sections whose analogies at $e^+e^-$ colliders would be very small. These processes provide attractive new ways of producing such particles at $\mu^+\mu^-$ colliders and are superior to the conventional methods in regions of parameter space.