Constraints of dark matter direct detection experiments on the MSSM and implications for LHC Higgs searches

TL;DR

This paper investigates how current dark matter direct detection limits constrain the MSSM Higgs sector and discusses implications for Higgs searches at the LHC, highlighting the impact of future experiments.

Contribution

It provides a detailed analysis of current and future dark matter detection constraints on MSSM parameters and their implications for Higgs boson observability at the LHC.

Findings

Current limits exclude some MSSM parameter regions compatible with relic density.

Charged Higgs is difficult to detect at LHC with 30 fb^{-1}.

Future XENON100 data will further restrict MSSM parameter space.

Abstract

Assuming the lightest neutralino solely composes the cosmic dark matter, we examine the constraints of the CDMS-II and XENON100 dark matter direct searches on the parameter space of the MSSM Higgs sector. We find that the current CDMS-II/XENON100 limits can exclude some of the parameter space which survive the constraints from the dark matter relic density and various collider experiments. We also find that in the currently allowed parameter space, the charged Higgs boson is hardly accessible at the LHC for an integrated luminosity of 30 fb^{-1}, while the neutral non-SM Higgs bosons (H,A) may be accessible in some allowed region characterized by a large \mu. The future XENON100 (6000 kg-days exposure) will significantly tighten the parameter space in case of nonobservation of dark matter, further shrinking the likelihood of discovering the non-SM Higgs bosons at the LHC.