Heavy MSSM Higgs Bosons at CMS: “LHC wedge” and Higgs-Mass Precision

The search for MSSM Higgs bosons will be an important goal at the LHC. In order to analyze the search reach of the CMS experiment for the heavy neutral MSSM Higgs bosons, we combine the latest results for the CMS experimental sensitivities based on full simulation studies with state-of-the-art theoretical predictions of MSSM Higgs-boson properties. The experimental analyses are done assuming an integrated luminosity of 30 or 60 fb. The results are interpreted as 5 σ discovery contours in MSSM MA–tan β benchmark scenarios. Special emphasis is put on the variation of the Higgs mixing parameter μ. While the variation of μ can shift the prospective discovery reach (and correspondingly the “LHC wedge” region) by about ∆ tan β = 10, the discovery reach is rather stable with respect to the impact of other supersymmetric parameters. Within the discovery region we analyze the accuracy with which the masses of the heavy neutral Higgs bosons can be determined. An accuracy of 1–4% should be achievable, depending on MA and tanβ. PACS. 14.80.Cp Non-standard-model Higgs bosons – 12.60.Jv Supersymmetric models