Search for diphoton events with large missing transverse momentum in 1 fb -1 of 7 TeV proton-proton collision data with the ATLAS detector

A search for diphoton events with large missing transverse momentum has been performed using 1.07 fb -1 of proton-proton collision data at s=7 TeV recorded with the ATLAS detector. No excess of events was observed above the Standard Model prediction and 95% Confidence Level (CL) upper limits are set...

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Autor principal: Aad, G.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03702693_v710_n4-5_p519_Aad
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_03702693_v710_n4-5_p519_Aad2023-10-03T15:29:18Z Search for diphoton events with large missing transverse momentum in 1 fb -1 of 7 TeV proton-proton collision data with the ATLAS detector Aad, G. A search for diphoton events with large missing transverse momentum has been performed using 1.07 fb -1 of proton-proton collision data at s=7 TeV recorded with the ATLAS detector. No excess of events was observed above the Standard Model prediction and 95% Confidence Level (CL) upper limits are set on the production cross section for new physics. The limits depend on each model parameter space and vary as follows: Λ<(22-129) fb in the context of a generalised model of gauge-mediated supersymmetry breaking (GGM) with a bino-like lightest neutralino, σ<(27-91) fb in the context of a minimal model of gauge-mediated supersymmetry breaking (SPS8), and σ<(15-27) fb in the context of a specific model with one universal extra dimension (UED). A 95% CL lower limit of 805 GeV, for bino masses above 50 GeV, is set on the GGM gluino mass. Lower limits of 145 TeV and 1.23 TeV are set on the SPS8 breaking scale Λ and on the UED compactification scale 1/R, respectively. These limits provide the most stringent tests of these models to date. © 2012 CERN. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03702693_v710_n4-5_p519_Aad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A search for diphoton events with large missing transverse momentum has been performed using 1.07 fb -1 of proton-proton collision data at s=7 TeV recorded with the ATLAS detector. No excess of events was observed above the Standard Model prediction and 95% Confidence Level (CL) upper limits are set on the production cross section for new physics. The limits depend on each model parameter space and vary as follows: Λ<(22-129) fb in the context of a generalised model of gauge-mediated supersymmetry breaking (GGM) with a bino-like lightest neutralino, σ<(27-91) fb in the context of a minimal model of gauge-mediated supersymmetry breaking (SPS8), and σ<(15-27) fb in the context of a specific model with one universal extra dimension (UED). A 95% CL lower limit of 805 GeV, for bino masses above 50 GeV, is set on the GGM gluino mass. Lower limits of 145 TeV and 1.23 TeV are set on the SPS8 breaking scale Λ and on the UED compactification scale 1/R, respectively. These limits provide the most stringent tests of these models to date. © 2012 CERN.
format JOUR
author Aad, G.
spellingShingle Aad, G.
Search for diphoton events with large missing transverse momentum in 1 fb -1 of 7 TeV proton-proton collision data with the ATLAS detector
author_facet Aad, G.
author_sort Aad, G.
title Search for diphoton events with large missing transverse momentum in 1 fb -1 of 7 TeV proton-proton collision data with the ATLAS detector
title_short Search for diphoton events with large missing transverse momentum in 1 fb -1 of 7 TeV proton-proton collision data with the ATLAS detector
title_full Search for diphoton events with large missing transverse momentum in 1 fb -1 of 7 TeV proton-proton collision data with the ATLAS detector
title_fullStr Search for diphoton events with large missing transverse momentum in 1 fb -1 of 7 TeV proton-proton collision data with the ATLAS detector
title_full_unstemmed Search for diphoton events with large missing transverse momentum in 1 fb -1 of 7 TeV proton-proton collision data with the ATLAS detector
title_sort search for diphoton events with large missing transverse momentum in 1 fb -1 of 7 tev proton-proton collision data with the atlas detector
url http://hdl.handle.net/20.500.12110/paper_03702693_v710_n4-5_p519_Aad
work_keys_str_mv AT aadg searchfordiphotoneventswithlargemissingtransversemomentumin1fb1of7tevprotonprotoncollisiondatawiththeatlasdetector
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