Search for extra dimensions using diphoton events in 7 TeV proton-proton collisions with the ATLAS detector

Using data recorded in 2011 with the ATLAS detector at the Large Hadron Collider, a search for evidence of extra spatial dimensions has been performed through an analysis of the diphoton final state. The analysis uses data corresponding to an integrated luminosity of 2.12fb -1 of s=7TeV proton-proto...

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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_p538_Aad
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03702693_v710_n4-5_p538_Aad
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spelling todo:paper_03702693_v710_n4-5_p538_Aad2023-10-03T15:29:18Z Search for extra dimensions using diphoton events in 7 TeV proton-proton collisions with the ATLAS detector Aad, G. Using data recorded in 2011 with the ATLAS detector at the Large Hadron Collider, a search for evidence of extra spatial dimensions has been performed through an analysis of the diphoton final state. The analysis uses data corresponding to an integrated luminosity of 2.12fb -1 of s=7TeV proton-proton collisions. The diphoton invariant mass (m γγ ) spectrum is observed to be in good agreement with the expected Standard Model background. In the large extra dimension scenario of Arkani-Hamed, Dimopoulos and Dvali, the results provide 95% CL lower limits on the fundamental Planck scale between 2.27 and 3.53 TeV, depending on the number of extra dimensions and the theoretical formalism used. The results also set 95% CL lower limits on the lightest Randall-Sundrum graviton mass of between 0.79 and 1.85 TeV, for values of the dimensionless coupling k/ -1 Pl varying from 0.01 to 0.1. Combining with previously published ATLAS results from the dielectron and dimuon final states, the 95% CL lower limit on the Randall-Sundrum graviton mass for k/M -1 Pl=0.01 (0.1) is 0.80 (1.95) TeV. © 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_p538_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 Using data recorded in 2011 with the ATLAS detector at the Large Hadron Collider, a search for evidence of extra spatial dimensions has been performed through an analysis of the diphoton final state. The analysis uses data corresponding to an integrated luminosity of 2.12fb -1 of s=7TeV proton-proton collisions. The diphoton invariant mass (m γγ ) spectrum is observed to be in good agreement with the expected Standard Model background. In the large extra dimension scenario of Arkani-Hamed, Dimopoulos and Dvali, the results provide 95% CL lower limits on the fundamental Planck scale between 2.27 and 3.53 TeV, depending on the number of extra dimensions and the theoretical formalism used. The results also set 95% CL lower limits on the lightest Randall-Sundrum graviton mass of between 0.79 and 1.85 TeV, for values of the dimensionless coupling k/ -1 Pl varying from 0.01 to 0.1. Combining with previously published ATLAS results from the dielectron and dimuon final states, the 95% CL lower limit on the Randall-Sundrum graviton mass for k/M -1 Pl=0.01 (0.1) is 0.80 (1.95) TeV. © 2012 CERN.
format JOUR
author Aad, G.
spellingShingle Aad, G.
Search for extra dimensions using diphoton events in 7 TeV proton-proton collisions with the ATLAS detector
author_facet Aad, G.
author_sort Aad, G.
title Search for extra dimensions using diphoton events in 7 TeV proton-proton collisions with the ATLAS detector
title_short Search for extra dimensions using diphoton events in 7 TeV proton-proton collisions with the ATLAS detector
title_full Search for extra dimensions using diphoton events in 7 TeV proton-proton collisions with the ATLAS detector
title_fullStr Search for extra dimensions using diphoton events in 7 TeV proton-proton collisions with the ATLAS detector
title_full_unstemmed Search for extra dimensions using diphoton events in 7 TeV proton-proton collisions with the ATLAS detector
title_sort search for extra dimensions using diphoton events in 7 tev proton-proton collisions with the atlas detector
url http://hdl.handle.net/20.500.12110/paper_03702693_v710_n4-5_p538_Aad
work_keys_str_mv AT aadg searchforextradimensionsusingdiphotoneventsin7tevprotonprotoncollisionswiththeatlasdetector
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