Search for the Standard Model Higgs boson in H-> tau tau decays in proton-proton collisions with the ATLAS detector (original) (raw)

ATLAS Note
Report number ATLAS-CONF-2012-160
Title Search for the Standard Model Higgs boson in H-> tau tau decays in proton-proton collisions with the ATLAS detector
Corporate Author(s) The ATLAS collaboration
Collaboration ATLAS Collaboration
Publication 2012
Imprint 14 Nov 2012
Number of pages mult.
Note All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2012-160
Subject category Detectors and Experimental Techniques
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords HIGGS, tau, Higgs boson
Abstract A search for the Standard Model (SM) Higgs boson decaying into a pair of tau\tautau leptons is reported. The analysis, exploiting each of the tleptlep\tlep\tleptleptlep, tlepthad\tlep\thadtlepthad and thadthad\thad\thadthadthad final states, is based on data samples of proton-proton collisions collected by the ATLAS experiment at the LHC and corresponding to integrated luminosities of 4.6,ifb4.6\,\ifb4.6,ifb and 13.0,ifb13.0\,\ifb13.0,ifb at centre-of-mass energies of sqrts=7{\sqrt{s}=7 }sqrts=7 \TeV{} and 8,8\,8,\TeV{}, respectively. The observed (expected) upper limit at 95$\%$ CL on the cross-section times the branching ratio for SM Htotau+tau−H \to \tau^+\tau^-Htotau+tau is found to be 1.9 (1.2) times the SM prediction for a Higgs boson with mass mHm_{H}mH=125 GeV. For this mass, the observed (expected) deviation from the background-only hypothesis corresponds to a local significance of 1.1 (1.7) standard deviations.
Copyright/License Preprint: (License: CC-BY-4.0)

Corresponding record in: Inspire

Record created 2012-11-14, last modified 2021-04-18