CaltechAUTHORS
  A Caltech Library Service

Search for third-generation scalar leptoquarks and heavy right-handed neutrinos in final states with two tau leptons and two jets in proton-proton collisions at √s = 13 TeV

Sirunyan, A. M. and Anderson, D. and Bendavid, J. and Bornheim, A. and Bunn, J. and Duarte, J. and Lawhorn, J. M. and Mott, A. and Newman, H. B. and Pena, C. and Spiropulu, M. and Vlimant, J. R. and Xie, S. and Zhu, R. Y. and Dubinin, M. (2017) Search for third-generation scalar leptoquarks and heavy right-handed neutrinos in final states with two tau leptons and two jets in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics, 2017 (7). Art No. 121. ISSN 1126-6708. http://resolver.caltech.edu/CaltechAUTHORS:20171018-163402352

[img] PDF - Published Version
Creative Commons Attribution.

576Kb
[img] PDF - Submitted Version
Creative Commons Attribution.

525Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20171018-163402352

Abstract

A search is performed for third-generation scalar leptoquarks and heavy right-handed neutrinos in events containing one electron or muon, one hadronically decaying τ lepton, and at least two jets, using a √s = 13 TeV pp collision data sample corresponding to an integrated luminosity of 12.9 fb^(-1) collected with the CMS detector at the LHC in 2016. The number of observed events is found to be in agreement with the standard model prediction. A limit is set at 95% confidence level on the product of the leptoquark pair production cross section and β^2, where β is the branching fraction of leptoquark decay to a τ lepton and a bottom quark. Assuming β = 1, third-generation leptoquarks with masses below 850 GeV are excluded at 95% confidence level. An additional search based on the same event topology involves heavy right-handed neutrinos, N_R, and right-handed W bosons, W_R, arising in a left-right symmetric extension of the standard model. In this search, W_R bosons are assumed to decay to a tau lepton and N_R followed by the decay of the N_R to a tau lepton and an off-shell W_R boson. Assuming the mass of the right-handed neutrino to be half of the mass of the right-handed W boson, W_R boson masses below 2.9 TeV are excluded at 95% confidence level. These results improve on the limits from previous searches for third-generation leptoquarks and heavy right-handed neutrinos with τ leptons in the final state.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/JHEP07(2017)121DOIArticle
https://link.springer.com/article/10.1007/JHEP07%282017%29121PublisherArticle
https://arxiv.org/abs/1703.03995arXivDiscussion Paper
ORCID:
AuthorORCID
Newman, H. B.0000-0003-0964-1480
Spiropulu, M.0000-0001-8172-7081
Xie, S.0000-0003-2509-5731
Zhu, R. Y.0000-0003-3091-7461
Additional Information:© CERN 2017, Open Access, for the benefit of the CMS Collaboration. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. Article funded by SCOAP3. Received March 11, 2017; revised June 21, 2017; accepted July 12, 2017; published July 3, 2017. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES and CSF (Croatia); RPF (Cyprus); SENESCYT (Ecuador); MoER, ERC IUT, and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS, RFBR and RAEP (Russia); MESTD (Serbia); SEIDI, CPAN, PCTI and FEDER (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU and SFFR (Ukraine); STFC (United Kingdom); DOE and NSF (U.S.A.). Individuals have received support from the Marie-Curie programme 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 a 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 programme of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund, the Mobility Plus programme of the Ministry of Science and Higher Education, the National Science Center (Poland), contracts Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, and 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406; the National Priorities Research Program by Qatar National Research Fund; the Programa Clarín-COFUND del Principado de Asturias; the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF; the Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University and the Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); and the Welch Foundation, contract C-1845.
Group:CMS@Caltech
Funders:
Funding AgencyGrant Number
Bundesministerium für Wissenschaft, Forschung Und Wirtschaft (BMWFW)UNSPECIFIED
Fonds Zur Förderung der Wissenschaftlichen Forschung (FWF)UNSPECIFIED
Fonds de la Recherche Scientifique (FNRS)UNSPECIFIED
Fonds Wetenschappelijk Onderzoek (FWO)UNSPECIFIED
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNSPECIFIED
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)UNSPECIFIED
Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)UNSPECIFIED
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)UNSPECIFIED
Ministry of Education and Science (Bulgaria)UNSPECIFIED
CERNUNSPECIFIED
Chinese Academy of SciencesUNSPECIFIED
Ministry of Science and Technology (China)UNSPECIFIED
National Natural Science Foundation of ChinaUNSPECIFIED
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)UNSPECIFIED
Ministry of Science, Education and Sport (Croatia)UNSPECIFIED
Croatian Science FoundationUNSPECIFIED
Research Promotion Foundation (Cyprus)UNSPECIFIED
Secretaría Nacional de Educación Superior, Ciencia, Tecnología e Innovación (SENESCYT)UNSPECIFIED
Ministry of Education and Research (Estonia)UNSPECIFIED
Estonian Research CouncilUNSPECIFIED
European Regional Development Fund (Estonia)UNSPECIFIED
Academy of FinlandUNSPECIFIED
Ministry of Education and Culture (Finland)UNSPECIFIED
Helsinki Institute of PhysicsUNSPECIFIED
Commissariat a l'Energie Atomique (CEA)UNSPECIFIED
Centre National de la Recherche Scientifique (CNRS)UNSPECIFIED
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Bundesministerium für Bildung und Forschung (BMBF)UNSPECIFIED
Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF)UNSPECIFIED
General Secretariat for Research and Technology (GSRT)UNSPECIFIED
Hungarian Scientific Research Fund (OTKA)UNSPECIFIED
National Innovation Office (Hungary)UNSPECIFIED
Department of Atomic Energy (India)UNSPECIFIED
Department of Science and Technology (India)UNSPECIFIED
Institute for Studies in Theoretical Physics and Mathematics (Iran)UNSPECIFIED
Science Foundation, IrelandUNSPECIFIED
Istituto Nazionale di Fisica Nucleare (INFN)UNSPECIFIED
Ministry of Science, ICT and Future Planning (Korea)UNSPECIFIED
National Research Foundation of KoreaUNSPECIFIED
Lithuanian Academy of SciencesUNSPECIFIED
Ministry of Education (Malaysia)UNSPECIFIED
University of MalayaUNSPECIFIED
Benemérita Universidad Autónoma de Puebla (BUAP)UNSPECIFIED
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)UNSPECIFIED
Consejo Nacional de Ciencia y Tecnología (CONACYT)UNSPECIFIED
Laboratorio Nacional de Supercómputo (LNS)UNSPECIFIED
Secretaría de Educación Pública (SEP)UNSPECIFIED
Universidad Autónoma de San Luis Potosí Inicio-Facultad de Ingeniería (UASLP-FAI)UNSPECIFIED
Ministry of Business, Innovation and Employment (New Zealand)UNSPECIFIED
Atomic Energy Commission (Pakistan)UNSPECIFIED
Ministry of Science and Higher Education (Poland)UNSPECIFIED
National Science Centre (Poland)UNSPECIFIED
Fundação para a Ciência e Tecnologia (FCT)UNSPECIFIED
Joint Institute for Nuclear Research (JINR)UNSPECIFIED
Russian Ministry of Education and Sciences (MON)UNSPECIFIED
RosAtomUNSPECIFIED
Russian Academy of SciencesUNSPECIFIED
Russian Foundation for Basic ResearchUNSPECIFIED
Russian Academic Excellence Project (RAEP)UNSPECIFIED
Ministry of Education, Science and Technological Development (Serbia)UNSPECIFIED
Secretaría de Estado de Investigación, Desarrollo e Innovación (SEIDI)UNSPECIFIED
Centro Nacional de Física de Partículas, Astropartículas y Nuclear (CPAN)UNSPECIFIED
Plan de Ciencia, Tecnología e Innovació (PCTI)UNSPECIFIED
Fondo Europeo de Desarrollo Regional (FEDER)UNSPECIFIED
Swiss Funding AgenciesUNSPECIFIED
Ministry of Science and Technology (Taipei)UNSPECIFIED
Thailand Center of Excellence in PhysicsUNSPECIFIED
Institute for the Promotion of Teaching Science and Technology (Thailand)UNSPECIFIED
Special Task Force for Activating Research (Thailand)UNSPECIFIED
National Science and Technology Development Agency (Thailand)UNSPECIFIED
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBİTAK)UNSPECIFIED
Türkiye Atom Enerjisi Kurumu (TAEK)UNSPECIFIED
National Academy of Sciences (Ukraine)UNSPECIFIED
State Fund for Fundamental Research (Ukraine)UNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Department of Energy (DOE)UNSPECIFIED
NSFUNSPECIFIED
Marie Curie FellowshipUNSPECIFIED
European Research Council (ERC)UNSPECIFIED
EPLANETUNSPECIFIED
Leventis FoundationUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Alexander von Humboldt FoundationUNSPECIFIED
Belgian Federal Science Policy Office (BELSPO)UNSPECIFIED
Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium)UNSPECIFIED
Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)UNSPECIFIED
Ministry of Education, Youth and Sports (Czech Republic)UNSPECIFIED
Council of Science and Industrial Research (India)UNSPECIFIED
Foundation for Polish Science HOMING PLUS ProgramUNSPECIFIED
European Union Regional Development FundUNSPECIFIED
Mobility Plus ProgramUNSPECIFIED
Harmonia Program2014/14/M/ST2/00428
OPUS Program2014/13/B/ST2/02543
OPUS Program2014/15/B/ST2/03998
OPUS Program2015/19/B/ST2/02861
Sonatabis ProgramDEC-2012/07/E/ST2/01406
Thalis ProgramUNSPECIFIED
Aristeia ProgramUNSPECIFIED
European Social Fund (EU-ESF)UNSPECIFIED
Greek National Strategic Reference Framework (NSRF)UNSPECIFIED
Qatar National Research Fund National Priorities Research ProgramUNSPECIFIED
Programa Clarín-COFUND del Principado de AsturiasUNSPECIFIED
Rachadapisek Sompot FundUNSPECIFIED
Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand)UNSPECIFIED
Robert A. Welch FoundationC-1845
SCOAP3UNSPECIFIED
Subject Keywords:Beyond Standard Model; Hadron-Hadron scattering (experiments)
Record Number:CaltechAUTHORS:20171018-163402352
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20171018-163402352
Official Citation:The CMS collaboration, Sirunyan, A.M., Tumasyan, A. et al. J. High Energ. Phys. (2017) 2017: 121. https://doi.org/10.1007/JHEP07(2017)121
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:82475
Collection:CaltechAUTHORS
Deposited By: Melissa Ray
Deposited On:19 Oct 2017 16:21
Last Modified:19 Oct 2017 16:21

Repository Staff Only: item control page