Search for heavy vector-like quarks coupling to light quarks in proton–proton collisions at √ s = 7 TeV with the ATLAS detector

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dc.contributor.author Aad, G.
dc.contributor.author Arnal, V.
dc.contributor.author Barreiro, Fernando
dc.contributor.author Cantero, J.
dc.contributor.author De la Torre, H.
dc.contributor.author Del Peso, J.
dc.contributor.author Glasman, C.
dc.contributor.author Labarga, Luis
dc.contributor.author Lagouri, T.
dc.contributor.author Llorente Merino, J.
dc.contributor.author March, Luis
dc.contributor.author Nebot, Eduardo
dc.contributor.author Terrón, J.
dc.contributor.other UAM. Departamento de Física Teórica es_ES
dc.date.accessioned 2016-11-07T16:26:16Z
dc.date.available 2016-11-07T16:26:16Z
dc.date.issued 2012-04-02
dc.identifier.citation Physics Letters B 712.1-2 (2012): 22–39 en_US
dc.identifier.issn 0370-2693 (print) es_ES
dc.identifier.issn 1873-2445 (online) es_ES
dc.identifier.uri http://hdl.handle.net/10486/674841
dc.description Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM en_US
dc.description.abstract This Letter presents a search for singly produced vector-like quarks, Q , coupling to light quarks, q. The search is sensitive to both charged current (CC) and neutral current (NC) processes, pp → Q q→ Wqqꞌ and pp→ Q q→ Zqqꞌ with a leptonic decay of the vector gauge boson. In 1.04 fb−1 of data taken in 2011 by the ATLAS experiment at a center-of-mass energy √ s = 7 TeV, no evidence of such heavy vector-like quarks is observed above the expected Standard Model background. Limits on the heavy vector-like quark production cross section times branching ratio as a function of mass mQ are obtained. For a coupling κqQ = v/mQ, where v is the Higgs vacuum expectation value, 95% C.L. lower limits on the mass of a vector-like quark are set at 900 GeV and 760 GeV from CC and NC processes, respectively en_US
dc.description.sponsorship We thank A. Atre, M. Carena, T. Han, and J. Santiago for the MadGraph code used to produce the signal MC samples. We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; ARTEMIS, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwide en_US
dc.format.extent 18 pag. es_ES
dc.format.mimetype application/pdf en
dc.language.iso eng en
dc.publisher Elsevier B.V. en_US
dc.publisher CERN en_US
dc.relation.ispartof Physics Letters B: Nuclear, Elementary Particle and High-Energy Physics en_US
dc.rights © 2012 CERN. Published by Elsevier B.V. en_US
dc.title Search for heavy vector-like quarks coupling to light quarks in proton–proton collisions at √ s = 7 TeV with the ATLAS detector en_US
dc.type article en
dc.subject.eciencia Física es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.physletb.2012.03.082 es_ES
dc.identifier.doi 10.1016/j.physletb.2012.03.082 es_ES
dc.identifier.publicationfirstpage 22 es_ES
dc.identifier.publicationissue 1-2 es_ES
dc.identifier.publicationlastpage 39 es_ES
dc.identifier.publicationvolume 712 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/303482 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion en
dc.rights.cc Reconocimiento – NoComercial – SinObraDerivada es_ES
dc.rights.accessRights openAccess en
dc.authorUAM Lagouri , Theodota (263922)
dc.authorUAM Labarga Echeverría, Luis Alfonso (259926)
dc.authorUAM March Ruiz, Luis (264217)
dc.authorUAM Nebot Del Busto, Eduardo (264001)
dc.authorUAM Barreiro Alonso, Fernando (259561)


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