Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8  TeV

Khachatryan, V.; Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderon, Alicia; Duarte Campderros, J.; Fernández-García, Marcos; Gómez, Gervasio; Graziano, A.; López Virto, A.; Marco, Jesús; Marco, Rafael; Martínez-Rivero, Celso; Matorras, Francisco; Muñoz Sánchez, F. J.; Piedra, Jonatan; Rodrigo Anoro, Teresa; Rodríguez Marrero, Ana Y.; Ruiz Jimeno, Alberto; Scodellaro, Luca; Vila, Iván; Vilar Cortabitarte, R.; CMS Collaboration

Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeV

et al.

Bibliographic Details
Authors:	Khachatryan, V., Brochero Cifuentes, J. A., Cabrillo, I. J., Calderon, Alicia, Duarte Campderros, J., Fernández-García, Marcos, Gómez, Gervasio, Graziano, A., López Virto, A., Marco, Jesús, Marco, Rafael, Martínez-Rivero, Celso, Matorras, Francisco, Muñoz Sánchez, F. J., Piedra, Jonatan, Rodrigo Anoro, Teresa, Rodríguez Marrero, Ana Y., Ruiz Jimeno, Alberto, Scodellaro, Luca, Vila, Iván, Vilar Cortabitarte, R., CMS Collaboration
Format:	article
Status:	Published version
Publication Date:	2015
Country:	España
Institution:	Consejo Superior de Investigaciones Científicas (CSIC)
Repository:	DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:	oai:digital.csic.es:10261/140166
Online Access:	http://hdl.handle.net/10261/140166
Access Level:	Open access
Keyword:	ddc:530

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repository_id_str
spelling	Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeVKhachatryan, V.Brochero Cifuentes, J. A.Cabrillo, I. J.Calderon, AliciaDuarte Campderros, J.Fernández-García, MarcosGómez, GervasioGraziano, A.López Virto, A.Marco, JesúsMarco, RafaelMartínez-Rivero, CelsoMatorras, FranciscoMuñoz Sánchez, F. J.Piedra, JonatanRodrigo Anoro, TeresaRodríguez Marrero, Ana Y.Ruiz Jimeno, AlbertoScodellaro, LucaVila, IvánVilar Cortabitarte, R.CMS Collaborationddc:530et al.A search is performed for long-lived massive neutral particles decaying to quark-antiquark pairs. The experimental signature is a distinctive topology of a pair of jets, originating at a secondary vertex. Events were collected with the CMS detector at the CERN LHC in proton-proton collisions at a center-of-mass energy of 8 TeV. The data analyzed correspond to an integrated luminosity of 18.5 fb−1. No significant excess is observed above standard model expectations. Upper limits at 95% confidence level are set on the production cross section of a heavy neutral scalar particle, H, in the mass range of 200 to 1000 GeV, decaying promptly into a pair of long-lived neutral X particles in the mass range of 50 to 350 GeV, each in turn decaying into a quark-antiquark pair. For X with mean proper decay lengths of 0.4 to 200 cm, the upper limits are typically 0.5–200 fb. The results are also interpreted in the context of an R-parity-violating supersymmetric model with long-lived neutralinos decaying into a quark-antiquark pair and a muon. For pair production of squarks that promptly decay to neutralinos with mean proper decay lengths of 2–40 cm, the upper limits on the cross section are typically 0.5–3 fb. The above limits are the most stringent on these channels to date.Individuals have received support from the MarieCurie program and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS program of Foundation for Polish Science, cofinanced from European Union, Regional Development Fund; the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; and the National Priorities Research Program by Qatar National Research Fund.Peer ReviewedAmerican Physical SocietyEuropean Research CouncilA. G. Leventis FoundationAlfred P. Sloan FoundationAlexander von Humboldt FoundationBelgian Science Policy OfficeMinistry of Education, Youth and Sports (Czech Republic)Indian Council of Social Science ResearchFoundation for Polish ScienceCompagnia di San PaoloMinistero dell'Istruzione, dell'Università e della RicercaGreek GovernmentQatar National Research FundEuropean CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2016201620152016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/140166reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/246806https://doi.org/10.1103/PhysRevD.91.012007Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1401662026-05-22T06:33:51Z
dc.title.none.fl_str_mv	Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeV
title	Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeV
spellingShingle	Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeV Khachatryan, V. ddc:530
title_short	Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeV
title_full	Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeV
title_fullStr	Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeV
title_full_unstemmed	Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeV
title_sort	Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeV
dc.creator.none.fl_str_mv	Khachatryan, V. Brochero Cifuentes, J. A. Cabrillo, I. J. Calderon, Alicia Duarte Campderros, J. Fernández-García, Marcos Gómez, Gervasio Graziano, A. López Virto, A. Marco, Jesús Marco, Rafael Martínez-Rivero, Celso Matorras, Francisco Muñoz Sánchez, F. J. Piedra, Jonatan Rodrigo Anoro, Teresa Rodríguez Marrero, Ana Y. Ruiz Jimeno, Alberto Scodellaro, Luca Vila, Iván Vilar Cortabitarte, R. CMS Collaboration
author	Khachatryan, V.
author_facet	Khachatryan, V. Brochero Cifuentes, J. A. Cabrillo, I. J. Calderon, Alicia Duarte Campderros, J. Fernández-García, Marcos Gómez, Gervasio Graziano, A. López Virto, A. Marco, Jesús Marco, Rafael Martínez-Rivero, Celso Matorras, Francisco Muñoz Sánchez, F. J. Piedra, Jonatan Rodrigo Anoro, Teresa Rodríguez Marrero, Ana Y. Ruiz Jimeno, Alberto Scodellaro, Luca Vila, Iván Vilar Cortabitarte, R. CMS Collaboration
author_role	author
author2	Brochero Cifuentes, J. A. Cabrillo, I. J. Calderon, Alicia Duarte Campderros, J. Fernández-García, Marcos Gómez, Gervasio Graziano, A. López Virto, A. Marco, Jesús Marco, Rafael Martínez-Rivero, Celso Matorras, Francisco Muñoz Sánchez, F. J. Piedra, Jonatan Rodrigo Anoro, Teresa Rodríguez Marrero, Ana Y. Ruiz Jimeno, Alberto Scodellaro, Luca Vila, Iván Vilar Cortabitarte, R. CMS Collaboration
author2_role	author author 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	European Research Council A. G. Leventis Foundation Alfred P. Sloan Foundation Alexander von Humboldt Foundation Belgian Science Policy Office Ministry of Education, Youth and Sports (Czech Republic) Indian Council of Social Science Research Foundation for Polish Science Compagnia di San Paolo Ministero dell'Istruzione, dell'Università e della Ricerca Greek Government Qatar National Research Fund European Commission Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv	ddc:530
topic	ddc:530
description	et al.
publishDate	2015
dc.date.none.fl_str_mv	2015 2016 2016 2016
dc.type.none.fl_str_mv	info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion
format	article
status_str	publishedVersion
dc.identifier.none.fl_str_mv	http://hdl.handle.net/10261/140166
url	http://hdl.handle.net/10261/140166
dc.language.none.fl_str_mv	Inglés
language_invalid_str_mv	Inglés
dc.relation.none.fl_str_mv	#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/246806 https://doi.org/10.1103/PhysRevD.91.012007 Sí
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess
eu_rights_str_mv	openAccess
dc.publisher.none.fl_str_mv	American Physical Society
publisher.none.fl_str_mv	American Physical Society
dc.source.none.fl_str_mv	reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str	Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str	DIGITAL.CSIC. Repositorio Institucional del CSIC
collection	DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score	15,812429

Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at √s=8 TeV

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