An update to the combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC using up to 4.9 fb−1 of pp collision data at √s = 7 TeV

A preliminary combination of Standard Model Higgs boson searches with the ATLAS experiment, in a dataset corresponding to an integrated luminosity of 4.6 to 4.9 fb−1 of pp collision data collected at √s = 7 TeV at the LHC, is presented. A Standard Model Higgs boson is excluded at the 95% confidence...

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Autor principal: The ATLAS collaboration
Lenguaje:eng
Publicado: 2012
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1430033
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author The ATLAS collaboration
author_facet The ATLAS collaboration
author_sort The ATLAS collaboration
collection CERN
description A preliminary combination of Standard Model Higgs boson searches with the ATLAS experiment, in a dataset corresponding to an integrated luminosity of 4.6 to 4.9 fb−1 of pp collision data collected at √s = 7 TeV at the LHC, is presented. A Standard Model Higgs boson is excluded at the 95% confidence level (CL) in the mass ranges from 110.0 GeV to 117.5 GeV, 118.5 GeV to 122.5 GeV, and 129 GeV to 539 GeV, while the range 120 GeV to 555 GeV is expected to be excluded in the absence of a signal. The mass regions be- tween 130 GeV and 486 GeV are excluded at the 99% CL. An excess of events is observed around mH∼126 GeV with a local significance of 2.5σ, where the expected significance in the presence of a Standard Model Higgs boson for that mass hypothesis is 2.9σ. The global probability for such an excess to occur in the full search mass range 110-600 GeV is approximately 30%, decreasing to 10% when restricted to the range 110-146 GeV.
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institution Organización Europea para la Investigación Nuclear
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spelling cern-14300332021-04-18T19:37:30Zhttp://cds.cern.ch/record/1430033engThe ATLAS collaborationAn update to the combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC using up to 4.9 fb−1 of pp collision data at √s = 7 TeVDetectors and Experimental TechniquesA preliminary combination of Standard Model Higgs boson searches with the ATLAS experiment, in a dataset corresponding to an integrated luminosity of 4.6 to 4.9 fb−1 of pp collision data collected at √s = 7 TeV at the LHC, is presented. A Standard Model Higgs boson is excluded at the 95% confidence level (CL) in the mass ranges from 110.0 GeV to 117.5 GeV, 118.5 GeV to 122.5 GeV, and 129 GeV to 539 GeV, while the range 120 GeV to 555 GeV is expected to be excluded in the absence of a signal. The mass regions be- tween 130 GeV and 486 GeV are excluded at the 99% CL. An excess of events is observed around mH∼126 GeV with a local significance of 2.5σ, where the expected significance in the presence of a Standard Model Higgs boson for that mass hypothesis is 2.9σ. The global probability for such an excess to occur in the full search mass range 110-600 GeV is approximately 30%, decreasing to 10% when restricted to the range 110-146 GeV.ATLAS-CONF-2012-019oai:cds.cern.ch:14300332012-03-08
spellingShingle Detectors and Experimental Techniques
The ATLAS collaboration
An update to the combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC using up to 4.9 fb−1 of pp collision data at √s = 7 TeV
title An update to the combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC using up to 4.9 fb−1 of pp collision data at √s = 7 TeV
title_full An update to the combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC using up to 4.9 fb−1 of pp collision data at √s = 7 TeV
title_fullStr An update to the combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC using up to 4.9 fb−1 of pp collision data at √s = 7 TeV
title_full_unstemmed An update to the combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC using up to 4.9 fb−1 of pp collision data at √s = 7 TeV
title_short An update to the combined search for the Standard Model Higgs boson with the ATLAS detector at the LHC using up to 4.9 fb−1 of pp collision data at √s = 7 TeV
title_sort update to the combined search for the standard model higgs boson with the atlas detector at the lhc using up to 4.9 fb−1 of pp collision data at √s = 7 tev
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1430033
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AT theatlascollaboration updatetothecombinedsearchforthestandardmodelhiggsbosonwiththeatlasdetectoratthelhcusingupto49fb1ofppcollisiondataats7tev

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