Search for first generation scalar leptoquarks in the e?jj channel in pp collisions at vs=7 TeV

A search for pair-production of first generation scalar leptoquarks is performed in the final state con- taining an electron, a neutrino, and at least two jets using proton?proton collision data at ?s = 7 TeV. The data were collected by the CMS detector at the LHC, corresponding to an integrated lum...

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Autores: Chatrchyan, Serguei, Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856, Cabrillo Bartolomé, José Iban|||0000-0002-0367-4022, Calderón Tazón, Alicia|||0000-0002-7205-2040, Chuang, S. H., Duarte Campderros, Jorge|||0000-0003-0687-5214, Felcini, Marta, Fernández García, Marcos|||0000-0002-4824-1087, Gómez Gramuglio, Gervasio|||0000-0002-1077-6553, González Sánchez, Francisco Javier, Jordá Lope, Clara, Lobelle Pardo, Patricia, López Virto, María Amparo, Marco de Lucas, Jesús|||0000-0001-7914-8494, Marco de Lucas, Rafael José, Martínez Rivero, Celso, Matorras Weinig, Francisco|||0000-0003-4295-5668, Muñoz Sánchez, Francisca Javiela, Piedra Gómez, Jonatan|||0000-0002-9157-1700, Rodrigo Anoro, Teresa
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/28579
Acceso en línea:https://hdl.handle.net/10902/28579
Access Level:acceso abierto
Palabra clave:LHC
CMS
Physics
Exotica
Leptoquarks
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spelling Search for first generation scalar leptoquarks in the e?jj channel in pp collisions at vs=7 TeVChatrchyan, SergueiBrochero Cifuentes, Javier Andrés|||0000-0003-2093-7856 Cabrillo Bartolomé, José Iban|||0000-0002-0367-4022Calderón Tazón, Alicia|||0000-0002-7205-2040Chuang, S. H.Duarte Campderros, Jorge|||0000-0003-0687-5214Felcini, MartaFernández García, Marcos|||0000-0002-4824-1087Gómez Gramuglio, Gervasio|||0000-0002-1077-6553González Sánchez, Francisco JavierJordá Lope, ClaraLobelle Pardo, PatriciaLópez Virto, María AmparoMarco de Lucas, Jesús|||0000-0001-7914-8494Marco de Lucas, Rafael JoséMartínez Rivero, CelsoMatorras Weinig, Francisco|||0000-0003-4295-5668Muñoz Sánchez, Francisca JavielaPiedra Gómez, Jonatan|||0000-0002-9157-1700Rodrigo Anoro, TeresaLHCCMSPhysicsExoticaLeptoquarksA search for pair-production of first generation scalar leptoquarks is performed in the final state con- taining an electron, a neutrino, and at least two jets using proton?proton collision data at ?s = 7 TeV. The data were collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 36 pb?1. The number of observed events is in good agreement with the predictions for standard model processes. Prior CMS results in the dielectron channel are combined with this electron + neutrino search. A 95% confidence level combined lower limit is set on the mass of a first generation scalar lep- toquark at 339 GeV for ? = 0.5, where ? is the branching fraction of the leptoquark to an electron and a quark. These results represent the most stringent direct limits to date for values of ? greater than 0.05.We wish to thank Michael Krämer for providing the 7 TeV NLO LQ pair-production cross sections and to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA).ElsevierUniversidad de Cantabria20112011-09-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/28579Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2011, 703(3), 246-266reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/285792026-06-02T12:39:31Z
dc.title.none.fl_str_mv Search for first generation scalar leptoquarks in the e?jj channel in pp collisions at vs=7 TeV
title Search for first generation scalar leptoquarks in the e?jj channel in pp collisions at vs=7 TeV
spellingShingle Search for first generation scalar leptoquarks in the e?jj channel in pp collisions at vs=7 TeV
Chatrchyan, Serguei
LHC
CMS
Physics
Exotica
Leptoquarks
title_short Search for first generation scalar leptoquarks in the e?jj channel in pp collisions at vs=7 TeV
title_full Search for first generation scalar leptoquarks in the e?jj channel in pp collisions at vs=7 TeV
title_fullStr Search for first generation scalar leptoquarks in the e?jj channel in pp collisions at vs=7 TeV
title_full_unstemmed Search for first generation scalar leptoquarks in the e?jj channel in pp collisions at vs=7 TeV
title_sort Search for first generation scalar leptoquarks in the e?jj channel in pp collisions at vs=7 TeV
dc.creator.none.fl_str_mv Chatrchyan, Serguei
Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856
Cabrillo Bartolomé, José Iban|||0000-0002-0367-4022
Calderón Tazón, Alicia|||0000-0002-7205-2040
Chuang, S. H.
Duarte Campderros, Jorge|||0000-0003-0687-5214
Felcini, Marta
Fernández García, Marcos|||0000-0002-4824-1087
Gómez Gramuglio, Gervasio|||0000-0002-1077-6553
González Sánchez, Francisco Javier
Jordá Lope, Clara
Lobelle Pardo, Patricia
López Virto, María Amparo
Marco de Lucas, Jesús|||0000-0001-7914-8494
Marco de Lucas, Rafael José
Martínez Rivero, Celso
Matorras Weinig, Francisco|||0000-0003-4295-5668
Muñoz Sánchez, Francisca Javiela
Piedra Gómez, Jonatan|||0000-0002-9157-1700
Rodrigo Anoro, Teresa
author Chatrchyan, Serguei
author_facet Chatrchyan, Serguei
Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856
Cabrillo Bartolomé, José Iban|||0000-0002-0367-4022
Calderón Tazón, Alicia|||0000-0002-7205-2040
Chuang, S. H.
Duarte Campderros, Jorge|||0000-0003-0687-5214
Felcini, Marta
Fernández García, Marcos|||0000-0002-4824-1087
Gómez Gramuglio, Gervasio|||0000-0002-1077-6553
González Sánchez, Francisco Javier
Jordá Lope, Clara
Lobelle Pardo, Patricia
López Virto, María Amparo
Marco de Lucas, Jesús|||0000-0001-7914-8494
Marco de Lucas, Rafael José
Martínez Rivero, Celso
Matorras Weinig, Francisco|||0000-0003-4295-5668
Muñoz Sánchez, Francisca Javiela
Piedra Gómez, Jonatan|||0000-0002-9157-1700
Rodrigo Anoro, Teresa
author_role author
author2 Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856
Cabrillo Bartolomé, José Iban|||0000-0002-0367-4022
Calderón Tazón, Alicia|||0000-0002-7205-2040
Chuang, S. H.
Duarte Campderros, Jorge|||0000-0003-0687-5214
Felcini, Marta
Fernández García, Marcos|||0000-0002-4824-1087
Gómez Gramuglio, Gervasio|||0000-0002-1077-6553
González Sánchez, Francisco Javier
Jordá Lope, Clara
Lobelle Pardo, Patricia
López Virto, María Amparo
Marco de Lucas, Jesús|||0000-0001-7914-8494
Marco de Lucas, Rafael José
Martínez Rivero, Celso
Matorras Weinig, Francisco|||0000-0003-4295-5668
Muñoz Sánchez, Francisca Javiela
Piedra Gómez, Jonatan|||0000-0002-9157-1700
Rodrigo Anoro, Teresa
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv LHC
CMS
Physics
Exotica
Leptoquarks
topic LHC
CMS
Physics
Exotica
Leptoquarks
description A search for pair-production of first generation scalar leptoquarks is performed in the final state con- taining an electron, a neutrino, and at least two jets using proton?proton collision data at ?s = 7 TeV. The data were collected by the CMS detector at the LHC, corresponding to an integrated luminosity of 36 pb?1. The number of observed events is in good agreement with the predictions for standard model processes. Prior CMS results in the dielectron channel are combined with this electron + neutrino search. A 95% confidence level combined lower limit is set on the mass of a first generation scalar lep- toquark at 339 GeV for ? = 0.5, where ? is the branching fraction of the leptoquark to an electron and a quark. These results represent the most stringent direct limits to date for values of ? greater than 0.05.
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-09-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10902/28579
url https://hdl.handle.net/10902/28579
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2011, 703(3), 246-266
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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