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dc.date.accessioned 2019-09-03T12:33:29Z
dc.date.available 2019-09-03T12:33:29Z
dc.date.issued 2012-03-13
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/80305
dc.description.abstract 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-1 of √s = 7 TeV proton– proton collisions. The diphoton invariant mass (mγγ) 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/MPl 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/MPl = 0.01 (0.1) is 0.80 (1.95) TeV. en
dc.format.extent 538-556 es
dc.language en es
dc.subject Fotones es
dc.subject proton-proton collisions es
dc.subject ATLAS detector es
dc.title Search for extra dimensions using diphoton events in 7 TeV proton–proton collisions with the ATLAS detector en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.1016/j.physletb.2012.03.022 es
sedici.identifier.issn 0370-2693 es
sedici.creator.person Anduaga, Xabier Sebastián es
sedici.creator.person Dova, María Teresa es
sedici.creator.person Monticelli, Fernando Gabriel es
sedici.creator.person Tripiana, Martín F. es
sedici.creator.person The ATLAS Collaboration es
sedici.subject.materias Ciencias Exactas es
sedici.subject.materias Física es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Exactas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Physics Letters B es
sedici.relation.journalVolumeAndIssue vol. 710, no. 4-5 es


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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)