Higgs Boson Properties and BSM Higgs Boson Searches at LHC

In the Minimal Supersymmetric Standard Model (MSSM), the minimal extension of the Standard Model (SM), two Higgs doublets are required, resulting in five observable Higgs bosons. Three of them are electrically neutral (h, H , and A) while two of them are charged (H). At tree level their properties like masses, widths and branching fractions can be predicted in terms of only two parameters, typically chosen to be the mass of the CP-odd Higgs boson, mA, and the ratio of the vacuum expectation values of the two Higgs doublets, tanβ. In the MSSM the couplings of the Higgs bosons to fermions and bosons are different from those in the Standard Model resulting in different production cross-sections and decay rates. The coupling of the Higgs bosons to third generation fermions is strongly enhanced for large regions of the parameter space which determines the search strategies for such Higgs bosons. In the following, searches for the neutral and charged Higgs bosons in the MSSM in the two experiments ATLAS and CMS at the LHC are described. Unless indicated otherwise, all results will be given in the m h scenario [1]. A detailed description of the ATLAS and CMS detectors can be found elsewhere [2, 3]