Tuesday, July 23, 2013

1307.5515 (CMS Collaboration)

Search for a Higgs boson decaying into a Z and a photon in pp collisions
at sqrt(s) = 7 and 8 TeV

CMS Collaboration
A search for a Higgs boson decaying into a Z boson and a photon is described. The analysis is performed using proton-proton collision datasets recorded by the CMS detector at the LHC. Events were collected at center-of-mass energies of 7 TeV and 8 TeV, corresponding to integrated luminosities of 5.0 and 19.6 inverse femtobarns, respectively. The selected events are required to have opposite-sign electron or muon pairs with an invariant mass greater than 50 GeV. No excess above standard model predictions has been found in the 120-160 GeV mass range and the first limits on the Higgs boson production cross section times the H to Z gamma branching fraction at the LHC have been derived. The observed limits are between about 4 and 25 times the standard model cross section times the branching fraction. The observed and expected limits for m[ll gamma]at 125 GeV are within one order of magnitude of the standard model prediction.
View original: http://arxiv.org/abs/1307.5515

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