D. Liko

Search for lepton-flavour-violating decays of the Higgs boson

A direct search for lepton flavour violating decays of the Higgs boson in the H→ μτ channel is described. In particular, the search examines the H → μτe and the H → μτh channels, where the τ leptons are reconstructed in the electronic and hadronic decay channels respectively. The data sample used in the search was collected in proton-proton collisions at √ s = 13 TeV with the CMS experiment at the LHC and corresponds to an integrated luminosity of 2.3 fb−1. No excess is observed, and a 95% CL upper limit of B(H→ μτ) < 1.20% (1.62 expected) is obtained.

Search for a very light NMSSM Higgs boson produced in decays of the 125 GeV scalar boson and decaying into τ leptons in pp collisions at √s=8 TeV

A bstractA search for a very light Higgs boson decaying into a pair of τ leptons is presented within the framework of the next-to-minimal supersymmetric standard model. This search is based on a data set corresponding to an integrated luminosity of 19.7 fb−1 of proton-proton collisions collected by the CMS experiment at a centre-of-mass energy of 8 TeV. The signal is defined by the production of either of the two lightest scalars, h1 or h2, via gluon-gluon fusion and subsequent decay into a pair of the lightest Higgs bosons, a1 or h1. The h1 or h2 boson is identified with the observed state at a mass of 125 GeV. The analysis searches for decays of the a1 (h1) states into pairs of τ leptons and covers a mass range for the a1 (h1) boson of 4 to 8 GeV. The search reveals no significant excess in data above standard model background expectations, and an upper limit is set on the signal production cross section times branching fraction as a function of the a1 (h1) boson mass. The 95% confidence level limit ranges from 4.5 pb at ma1

Measurement of t t ¯ production with additional jet activity, including b quark jets, in the dilepton decay channel using pp collisions at √s = 8 TeV

{m}_{{mathrm{a}}_1}

Measurement of the inclusive jet cross section in pp collisions at √s = 2.76 TeV

mh1=8

Search for a light charged Higgs boson decaying to (Formula presented.) in pp collisions at (Formula presented.) TeV

left({m}_{{mathrm{h}}_1}right)=8