Searches for new processes in the scalar sector at the CMS experiment

L

Searches for new processes in the scalar sector at the CMS experiment

After the discovery of a Higgs boson, measurements of its properties are now used to test the consistency with the predictions from the Brout-Englert-Higgs mechanism. Furthermore, its observation motivates the search for the appearance of other scalar bosons as predicted in various extensions of the standard model of particle physics. These proceedings describe the recent searches in the scalar sector that have been performed with the CMS detector at the LHC, using pp collision data collected at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 5~fb$^{-1}$ and 20~fb$^{-1}$ respectively. Considering models such as MSSM, NMSSM, and 2HDMs, exclusion limits in various extensions of the scalar sector of the standard model of particle physics are derived

Constraints of the Higgs-charm coupling at the ATLAS and CMS experiments

Higgs-charm coupling constraints at ATLAS and CM

Measurement of the Z + b-jets cross section in pp collisions at sqrt(s)sqrt(s) = 7 TeV with the CMS detector

The production of a Z boson in association with b jets is of interest to tests of theoretical predictions from QCD as well as in the context of searches for yet undiscovered particles. In these proceedings the measurement of the production cross sections of Z bosons in association with one or two b jets is described, as produced in proton-proton collisions at the LHC at a center-of-mass energy of 7 TeV and reconstructed at the CMS experiment, with a dataset corresponding to an integrated luminosity of 2.1 fb$^{-1}$. The estimated cross sections and the distributions of kinematic variables of the jets and leptons in the final state are compared to the theoretical predictions

Higgs boson couplings to quarks and leptons with the ATLAS experiment

Testing the Yukawa couplings of the Higgs boson to quarks and leptons is important to understand the origin of fermion masses. The talk presents cross section measurements in Higgs boson decays to two bottom quarks or two tau leptons, searches for Higgs boson decays to two charm quarks or two muons,  as well as indirect constraints of the charm-Yukawa coupling. The production of Higgs bosons in association with top quarks will also be discussed. These analyses are based on pp collision data collected at 13 TeV