2011/09/30 by M. Pelliccioni, Mario Pelliccioni, Pelliccioni, Mario
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle physics theoretical and experimental studies #hep-ex
paper · pdf · doi:10.48550/arxiv.1109.6814
arxiv created 2011/09/30 · openalex publication_date 2011/09/30 · arxiv updated 2019/08/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A search for a Higgs boson in the decay channel \rm H → \rm ZZ(*) with each Z boson decaying to an electron or muon pair is presented using pp collisions from the LHC at √ s = 7 TeV. The data analyzed correspond to an integrated luminosity of 1.13 ± 0.07 fb-1 recorded by the CMS detector in 2010 and 2011. The search covers Higgs boson mass (m\rm H) hypotheses of 110 < m\rm H < 600 \GeVcc. Fifteen events are observed, while 14.4 ± 0.6 events are expected from standard model background processes. Upper limits at 95% CL on the cross section×branching ratio for a Higgs boson with standard model-like decays exclude cross sections from about one to two times the expected standard model cross section for masses in the range 180 < m\rm H < 420 \GeVcc. Reinterpreted in the context of the standard model with four fermion families a Higgs boson with a mass in the range 138 -162 \GeVcc and 178-502 \GeVcc is excluded at 95% CL.