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 2.12 fb<sup>-1</sup>...

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Detalles Bibliográficos
Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín F., The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Ciencias Exactas
Física
Fotones
proton-proton collisions
ATLAS detector
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80305
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80305
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Fotones
proton-proton collisions
ATLAS detector
spellingShingle Ciencias Exactas
Física
Fotones
proton-proton collisions
ATLAS detector
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
Search for extra dimensions using diphoton events in 7 TeV proton–proton collisions with the ATLAS detector
topic_facet Ciencias Exactas
Física
Fotones
proton-proton collisions
ATLAS detector
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 2.12 fb<sup>-1</sup> of √s = 7 TeV proton– proton collisions. The diphoton invariant mass (m<sub>γγ</sub>) 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/M<sub>Pl</sub> 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<sub>Pl</sub> = 0.01 (0.1) is 0.80 (1.95) TeV.
format Articulo
Articulo
author Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_sort Anduaga, Xabier Sebastián
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
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/80305
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AT dovamariateresa searchforextradimensionsusingdiphotoneventsin7tevprotonprotoncollisionswiththeatlasdetector
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