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dc.contributor.author
Aad, G.
dc.contributor.author
Otero y Garzon, Gustavo Javier
dc.contributor.author
Piegaia, Ricardo Nestor
dc.contributor.author
Tripiana, Martin Fernando
dc.contributor.author
Anduaga, Xabier Sebastian
dc.contributor.author
Dova, Maria Teresa
dc.contributor.author
Monticelli, Fernando Gabriel
dc.contributor.author
Atlas Collaboration
dc.date.available
2015-06-11T17:06:04Z
dc.date.issued
2013-02
dc.identifier.citation
The Atlas Collaboration; Measurement of the flavour composition of dijet events in pp collisions at s√=7 TeV with the ATLAS detector; Springer; European Physical Journal C - Particles And Fields; 73; 2301; 2-2013; 2301(30);
dc.identifier.issn
1434-6044
dc.identifier.uri
http://hdl.handle.net/11336/683
dc.description.abstract
This paper describes ameasurement of the flavour c√omposition of dijet events produced in pp collisions at s = 7 TeV using the ATLAS detector. The measurement uses the full 2010 data sample, corresponding to an integrated luminosity of 39 pb−1. Six possible combinations of light, charm and bottom jets are identified in the dijet events, where the jet flavour is defined by the presence of bottom, charm or solely light flavour hadrons in the jet. Kinematic variables, based on the properties of displaced decay vertices and optimised for jet flavour identification, are used in a multidimensional template fit to measure the fractions of these dijet flavour states as functions of the leading jet transverse momentum in the range 40 GeV to 500 GeV and jet rapidity |y| < 2.1. The fit results agree with the predictions of leading- and next-to-leading-order calculations, with the exception of the dijet fraction composed of bottom and light flavour jets, which is underestimated by all models at large transverse jet momenta. The ability to identify jets containing two b-hadrons, originating from e.g. gluon splitting, is demonstrated. The difference between bottom jet production rates in leading and subleading jets is consistent with the next-to-leading-order predictions.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Atlas
dc.subject
Jet
dc.subject
Flavor
dc.subject.classification
Ciencias Naturales y Exactas
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Ciencias Físicas
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Física de Partículas y Campos
dc.title
Measurement of the flavour composition of dijet events in pp collisions at s√=7 TeV with the ATLAS detector
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
73
dc.journal.number
2301
dc.journal.pagination
2301(30)
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.conicet.avisoEditorial
© CERN for the benefit of the ATLAS collaboration 2013. This article is published with open access at Springerlink.com
dc.description.fil
Fil: Aad, G. Albert-Ludwigs-Universität. Fakultät für Mathematik und Physik; Alemania;
dc.description.fil
Fil: Otero y Garzon, Gustavo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;
dc.description.fil
Fil: Piegaia, Ricardo Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Física La Plata; Argentina;
dc.description.fil
Fil: Tripiana, Martin Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Física La Plata; Argentina;
dc.description.fil
Fil: Anduaga, Xabier Sebastian. de Física La Plata;
dc.description.fil
Fil: Dova, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Física La Plata; Argentina;
dc.description.fil
Fil: Monticelli, Fernando Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Física La Plata; Argentina;
dc.description.fil
Fil: Atlas Cllaboration.
dc.journal.title
European Physical Journal C - Particles And Fields
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1140/epjc/s10052-013-2301-5
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