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Search for high-mass dimuon resonances in the ATLAS experiment at sqrt{s} = 7 TeV

We present a search for high-mass mu+mu- resonances in pp collisions at a centre-of-mass energy of 7 TeV recorded by the ATLAS experiment in 2011. No statistically significant excess above the Standard Model expectation is observed in a dataset corresponding to an integrated luminosity of 1.21 fb-1....

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Detalles Bibliográficos
Autor principal: Viel, S
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:http://cds.cern.ch/record/1395507
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author Viel, S
author_facet Viel, S
author_sort Viel, S
collection CERN
description We present a search for high-mass mu+mu- resonances in pp collisions at a centre-of-mass energy of 7 TeV recorded by the ATLAS experiment in 2011. No statistically significant excess above the Standard Model expectation is observed in a dataset corresponding to an integrated luminosity of 1.21 fb-1. Consequently, upper limits are set on the cross-section times branching ratio of resonances decaying to muon pairs as a function of the resonance mass. In particular, a Sequential Standard Model Z' is excluded for masses below 1.61 TeV, and a Randall-Sundrum Kaluza-Klein graviton with coupling k/M_{Pl} = 0.1 is excluded for masses below 1.45 TeV, at the 95% C.L. Combined limits with the electron channel reach 1.83 TeV and 1.63 TeV respectively.
id cern-1395507
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
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spelling cern-13955072019-09-30T06:29:59Zhttp://cds.cern.ch/record/1395507engViel, SSearch for high-mass dimuon resonances in the ATLAS experiment at sqrt{s} = 7 TeVDetectors and Experimental TechniquesWe present a search for high-mass mu+mu- resonances in pp collisions at a centre-of-mass energy of 7 TeV recorded by the ATLAS experiment in 2011. No statistically significant excess above the Standard Model expectation is observed in a dataset corresponding to an integrated luminosity of 1.21 fb-1. Consequently, upper limits are set on the cross-section times branching ratio of resonances decaying to muon pairs as a function of the resonance mass. In particular, a Sequential Standard Model Z' is excluded for masses below 1.61 TeV, and a Randall-Sundrum Kaluza-Klein graviton with coupling k/M_{Pl} = 0.1 is excluded for masses below 1.45 TeV, at the 95% C.L. Combined limits with the electron channel reach 1.83 TeV and 1.63 TeV respectively.ATL-PHYS-PROC-2011-224oai:cds.cern.ch:13955072011-11-03
spellingShingle Detectors and Experimental Techniques
Viel, S
Search for high-mass dimuon resonances in the ATLAS experiment at sqrt{s} = 7 TeV
title Search for high-mass dimuon resonances in the ATLAS experiment at sqrt{s} = 7 TeV
title_full Search for high-mass dimuon resonances in the ATLAS experiment at sqrt{s} = 7 TeV
title_fullStr Search for high-mass dimuon resonances in the ATLAS experiment at sqrt{s} = 7 TeV
title_full_unstemmed Search for high-mass dimuon resonances in the ATLAS experiment at sqrt{s} = 7 TeV
title_short Search for high-mass dimuon resonances in the ATLAS experiment at sqrt{s} = 7 TeV
title_sort search for high-mass dimuon resonances in the atlas experiment at sqrt{s} = 7 tev
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1395507
work_keys_str_mv AT viels searchforhighmassdimuonresonancesintheatlasexperimentatsqrts7tev