Logo
ScienceStack
Table of Contents
Fetching ...
Sign In

Summary of the CMS Discovery Potential for the MSSM SUSY Higgses

D. Denegri, V. Drollinger, R. Kinnunen, K. Lassila-Perini, S. Lehti, F. Moortgat, A. Nikitenko, S. Slabospitsky, N. Stepanov

TL;DR

CMS investigates MSSM Higgs discovery potential using detector-level and fast simulations to map the $m_A$-$\tan\beta$ landscape. The study identifies robust light-Higgs channels, $h \rightarrow \gamma\gamma$ and $h \rightarrow b\overline{b}$, capable of covering the LEP-excluded region with about 30 fb$^{-1}$ under no-mixing, while heavy Higgses are probed at high $\tan\beta$ through $A,H \rightarrow \tau\tau$ and $A,H \rightarrow \mu\mu$, complemented by $H^{\pm} \rightarrow \tau\nu$ channels. It also explores SUSY-decay pathways such as $A,H \rightarrow \chi^0_2\chi^0_2 \rightarrow 4\ell$ to extend sensitivity in favorable parameter regions; a combination of tau tagging, hadronic triggers, and precise lepton/photon reconstruction is essential. Overall, the results highlight significant CMS coverage of the MSSM Higgs sector across plausible luminosities and emphasize the need for full detector simulations to finalize the discovery reach and coupling measurements.

Abstract

This work summarises the present understanding of the expected MSSM SUSY Higgs reach for CMS. Many of the studies presented here result from detailed detector simulations incorporating final CMS detector design and response. With 30 fb-1 the h -> gamma,gamma and h -> bb channels allow to cover most of the MSSM parameter space. For the massive A,H,H+ MSSM Higgs states the channels A,H -> tau,tau and H+ -> tau,nu turn out to be the most profitable ones in terms of mass reach and parameter space coverage. Consequently CMS has made a big effort to trigger efficiently on taus. Provided neutralinos and sleptons are not too heavy, there is an interesting complementarity in the reaches for A,H -> tau,tau and A,H -> chi,chi.

Summary of the CMS Discovery Potential for the MSSM SUSY Higgses

TL;DR

CMS investigates MSSM Higgs discovery potential using detector-level and fast simulations to map the - landscape. The study identifies robust light-Higgs channels, and , capable of covering the LEP-excluded region with about 30 fb under no-mixing, while heavy Higgses are probed at high through and , complemented by channels. It also explores SUSY-decay pathways such as to extend sensitivity in favorable parameter regions; a combination of tau tagging, hadronic triggers, and precise lepton/photon reconstruction is essential. Overall, the results highlight significant CMS coverage of the MSSM Higgs sector across plausible luminosities and emphasize the need for full detector simulations to finalize the discovery reach and coupling measurements.

Abstract

This work summarises the present understanding of the expected MSSM SUSY Higgs reach for CMS. Many of the studies presented here result from detailed detector simulations incorporating final CMS detector design and response. With 30 fb-1 the h -> gamma,gamma and h -> bb channels allow to cover most of the MSSM parameter space. For the massive A,H,H+ MSSM Higgs states the channels A,H -> tau,tau and H+ -> tau,nu turn out to be the most profitable ones in terms of mass reach and parameter space coverage. Consequently CMS has made a big effort to trigger efficiently on taus. Provided neutralinos and sleptons are not too heavy, there is an interesting complementarity in the reaches for A,H -> tau,tau and A,H -> chi,chi.

Paper Structure

This paper contains 14 sections, 20 figures.

Table of Contents

  1. Introduction
  2. Simulation tools
  3. MSSM Higgs bosons
  4. Branching ratios and cross sections
  5. Processes
  6. $h \rightarrow \gamma\gamma$
  7. $h \rightarrow b\overline{b}$
  8. $A, H \rightarrow \mu\mu$
  9. $A, H \rightarrow \tau\tau$ with $2~lepton$, $lepton+\tau~jet$ and $2~\tau~jet$ final states
  10. $H^{\pm} \rightarrow \tau\nu$ in $gb \rightarrow tH^{\pm}$ and in $q\overline{q'} \rightarrow H^{\pm}$
  11. $H^{\pm} \rightarrow tb$ in $gb \rightarrow tH^{\pm}$
  12. $A, H \rightarrow \chi^{0}_{2}\chi^{0}_{2} \rightarrow 4\ell^{\pm}+X$
  13. Conclusions
  14. Acknowledgements

Figures (20)

  • Figure 1: Total width of the $A^0$ boson as a function of $m_{A}$ for $tan\beta$ = 5 to $tan\beta$ = 50 calculated with HDECAY hdecay.
  • Figure 2: Total width of the $H^0$ boson as a function of $m_{H}$ for $tan\beta$ = 5 to $tan\beta$ = 50 calculated with HDECAY hdecay.
  • Figure 3:
  • Figure 5:
  • Figure 7:
  • ...and 15 more figures