Production of neutral and charged Higgs bosons of the MSSM at the future e-gamma colliders

TL;DR

This paper analyzes the potential for detecting neutral and charged Higgs bosons of the MSSM at future electron-photon colliders, showing promising signals for neutral Higgs detection and challenging prospects for charged Higgs observation.

Contribution

It provides a comprehensive calculation of Higgs boson production cross sections at e-gamma colliders within the MSSM, using a specific gauge choice and exploring detection possibilities.

Findings

Neutral Higgs bosons can be detected at future colliders in most parameter regions.

The reaction e gamma --> e Higgs can measure Higgs mass via outgoing electron detection.

Charged Higgs production has smaller cross sections, making detection more difficult.

Abstract

A complete study for the production of neutral (h^0, H^0, A^0 (= \phi^0_i)) and charged Higgs (H^\pm) bosons at electron-photon colliders is presented in the context of the minimal supersymmetric standard model. A particular choice of the non-linear R_\xi gauge is used to evaluate the amplitudes of the reaction e-gamma --> e \phi^0_i. The resulting cross section indicates that it will be possible to detect a signal from the neutral Higgs bosons for most regions of parameter space at the future linear colliders with \sqrt{s}=500 GeV through the reaction e gamma --> e \phi^0_i. This reaction also offers the interesting possibility to measure the Higgs mass through the detection of the outgoing electron. The production of the charged Higgs boson through the reaction e gamma --> \nu_e H^\pm$ has in general smaller values for the cross section, which seems more difficult to observe.