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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 root s=13 TeV

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    • Contributors:
      Yerevan Phys Inst, Yerevan, Armenia.; Inst Hochenergiephys, Vienna, Austria.; Inst Nucl Problems, Minsk, Byelarus.; Natl Ctr Particle & High Energy Phys, Minsk, Byelarus.; Univ Antwerp, Antwerp, Belgium.; Vrije Univ Brussel, Brussels, Belgium.; Univ Libre Bruxelles, Brussels, Belgium.; Univ Ghent, Ghent, Belgium.; Catholic Univ Louvain, Louvain La Neuve, Belgium.; Univ Mons, Mons, Belgium.; Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil.; Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil.; Univ Estadual Paulista, Sao Paulo, Brazil.; Univ Fed ABC, Sao Paulo, Brazil.; Inst Nucl Energy Res, Sofia, Bulgaria.; Univ Sofia, Sofia, Bulgaria.; Beihang Univ, Beijing, Peoples R China.; Inst High Energy Phys, Beijing, Peoples R China.; Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China.; Univ Los Andes, Bogota, Colombia.; Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia.; Univ Split, Fac Sci, Split, Croatia.; Rudjer Boskovic Inst, Zagreb, Croatia.; Univ Cyprus, Nicosia, Cyprus.; Charles Univ Prague, Prague, Czech Republic.; Univ San Francisco Quito, Quito, Ecuador.; Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt.; NICPB, Tallinn, Estonia.; Univ Helsinki, Dept Phys, Helsinki, Finland.; Helsinki Inst Phys, Helsinki, Finland.; Lappeenranta Univ Technol, Lappeenranta, Finland.; Univ Paris Saclay, CEA, IRFU, Gif Sur Yvette, France.; CNRS, IN2P3, Ecole Polytech, Lab Leprince Ringuet, Palaiseau, France.; Univ Strasbourg, CNRS, IN2P3, IPHC, Strasbourg, France.; CNRS, IN2P3, Ctr Calcul, Inst Natl Phys Nucl & Phys Particules, Villeurbanne, France.; Univ Claude Bernard Lyon 1, CNRS, IN2P3, Univ Lyon,Inst Phys Nucl Lyon, Villeurbanne, France.; Georgian Tech Univ, Tbilisi, Rep of Georgia.; Tbilisi State Univ, Tbilisi, Rep of Georgia.; Rhein Westfal TH Aachen, Physikal Inst 1, Aachen, Germany.; Rhein Westfal TH Aachen, Physikal Inst A 3, Aachen, Germany.; Rhein Westfal TH Aachen, Physikal Inst B 3, Aachen, Germany.; DESY, Hamburg, Germany.; Univ Hamburg, Hamburg, Germany.; Inst Expt Kernphys, Karlsruhe, Germany.; NCSR Demokritos, INPP, Aghia Paraskevi, Greece.; Univ Athens, Athens, Greece.; Univ Ioannina, Ioannina, Greece.; Eotvos Lorand Univ, MTA ELTE Lendulet CMS Particle, Budapest, Hungary.; Eotvos Lorand Univ, Nucl Phys Grp, Budapest, Hungary.; Wigner Res Ctr Phys, Budapest, Hungary.; Inst Nucl Res, ATOMKI, Debrecen, Hungary.; Univ Debrecen, Inst Phys, Debrecen, Hungary.; Indian Inst Sci IISc, Bengaluru, India.; Natl Inst Sci Educ & Res, Bhubaneswar, Orissa, India.; Panjab Univ, Chandigarh, India.; Univ Delhi, Delhi, India.; Saha Inst Nucl Phys, Kolkata, India.; Indian Inst Technol Madras, Madras, Tamil Nadu, India.; Bhabha Atom Res Ctr, Bombay, Maharashtra, India.; Tata Inst Fundamental Res A, Bombay, Maharashtra, India.; Tata Inst Fundamental Res B, Bombay, Maharashtra, India.; IISER, Pune, Maharashtra, India.; Inst Res Fundamental Sci IPM, Tehran, Iran.; Univ Coll Dublin, Dublin, Ireland.; INFN, Sez Bari, Bari, Italy.; Univ Bari, Bari, Italy.; Politecn Bari, Bari, Italy.; INFN, Sez Bologna, Bologna, Italy.; Univ Bologna, Bologna, Italy.; INFN, Sez Catania, Catania, Italy.; Univ Catania, Catania, Italy.; INFN, Sez Firenze, Florence, Italy.; Univ Firenze, Florence, Italy.; INFN, Lab Nazl Frascati, Frascati, Italy.; INFN, Sez Genova, Genoa, Italy.; Univ Genoa, Genoa, Italy.; INFN, Sez Milano Bicocca, Milan, Italy.; Univ Milano Bicocca, Milan, Italy.; INFN, Sez Napoli, Naples, Italy.; Univ Napoli Federico II, Naples, Italy.; Univ Basilicata, Potenza, Italy.; Univ G Marconi, Rome, Italy.; INFN, Sez Padova, Padua, Italy.; Univ Padua, Padua, Italy.; Univ Trento, Trento, Italy.; INFN, Sez Pavia, Pavia, Italy.; Univ Pavia, Pavia, Italy.; INFN, Sez Perugia, Perugia, Italy.; Univ Perugia, Perugia, Italy.; INFN, Sez Pisa, Pisa, Italy.; Univ Pisa, Pisa, Italy.; Scuola Normale Super Pisa, Pisa, Italy.; INFN, Sez Roma, Rome, Italy.; Univ Rome, Rome, Italy.; INFN, Sez Torino, Turin, Italy.; Univ Torino, Turin, Italy.; Univ Piemonte Orientale, Novara, Italy.; INFN, Sez Trieste, Trieste, Italy.; Univ Trieste, Trieste, Italy.; Kyungpook Natl Univ, Daegu, South Korea.; Chonbuk Natl Univ, Jeonju, South Korea.; Chonnam Natl Univ, Inst Univ & Elementary Particles, Kwangju, South Korea.; Hanyang Univ, Seoul, South Korea.; Korea Univ, Seoul, South Korea.; Seoul Natl Univ, Seoul, South Korea.; Univ Seoul, Seoul, South Korea.; Sungkyunkwan Univ, Suwon, South Korea.; Vilnius Univ, Vilnius, Lithuania.; Univ Malaya, Natl Ctr Particle Phys, Kuala Lumpur, Malaysia.; IPN, Ctr Invest & Estudios Avanzados, Mexico City, DF, Mexico.; Univ Iberoamer, Mexico City, DF, Mexico.; Benemerita Univ Autonoma Puebla, Puebla, Mexico.; Univ Autonoma San Luis Potosi, San Luis Potosi, Mexico.; Univ Auckland, Auckland, New Zealand.; Univ Canterbury, Christchurch, New Zealand.; Quaid I Azam Univ, Natl Ctr Phys, Islamabad, Pakistan.; Natl Ctr Nucl Res, Otwock, Poland.; Univ Warsaw, Fac Phys, Inst Expt Phys, Warsaw, Poland.; Lab Instrumentacao & Fis Expt Particulas, Lisbon, Portugal.; Joint Inst Nucl Res, Dubna, Russia.; Petersburg Nucl Phys Inst, St Petersburg, Russia.; Inst Nucl Res, Moscow, Russia.; Inst Theoret & Expt Phys, Moscow, Russia.; Moscow Inst Phys & Technol, Moscow, Russia.; Natl Res Nucl Univ, Moscow Engn Phys Inst MEPhI, Moscow, Russia.; PN Lebedev Phys Inst, Moscow, Russia.; Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia.; NSV, Novosibirsk, Russia.; Inst High Energy Phys, State Res Ctr Russian Federat, Protvino, Russia.; Univ Belgrade, Fac Phys, Belgrade, Serbia.; Vinca Inst Nucl Sci, Belgrade, Serbia.; Ctr Invest Energet Medioambient & Tecnol CIEMAT, Madrid, Spain.; Univ Autonoma Madrid, Madrid, Spain.; Univ Oviedo, Oviedo, Spain.; Univ Cantabria, CSIC, Inst Fis Cantabria IFCA, Santander, Spain.; CERN, European Org Nucl Res, Geneva, Switzerland.; Paul Scherrer Inst, Villigen, Switzerland.; Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland.; Univ Zurich, Zurich, Switzerland.; Natl Cent Univ, Chungli, Taiwan.; NTU, Taipei, Taiwan.; Chulalongkorn Univ, Fac Sci, Dept Phys, Bangkok, Thailand.; Cukurova Univ, Phys Dept Sci & Art Fac, Adana, Turkey.; Middle East Tech Univ, Dept Phys, Ankara, Turkey.; Bogazici Univ, Istanbul, Turkey.; Istanbul Tech Univ, Istanbul, Turkey.; Natl Acad Sci Ukraine, Inst Scintillat Mat, Kharkov, Ukraine.; Kharkov Phys & Technol Inst, Natl Sci Ctr, Kharkov, Ukraine.; Univ Bristol, Bristol, Avon, England.; Rutherford Appleton Lab, Didcot, Oxon, England.; Imperial Coll, London, England.; Brunel Univ, Uxbridge, Middx, England.; Baylor Univ, Waco, TX 76798 USA.; Catholic Univ Amer, Washington, DC 20064 USA.; Univ Alabama, Tuscaloosa, AL USA.; Boston Univ, Boston, MA 02215 USA.; Brown Univ, Providence, RI 02912 USA.; Univ Calif Davis, Davis, CA 95616 USA.; Univ Calif Los Angeles, Los Angeles, CA USA.; Univ Calif Riverside, Riverside, CA 92521 USA.; Univ Calif San Diego, La Jolla, CA 92093 USA.; Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA USA.; CALTECH, Pasadena, CA 91125 USA.; Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.; Univ Colorado Boulder, Boulder, CO USA.; Cornell Univ, Ithaca, NY USA.; Fairfield Univ, Fairfield, CT 06430 USA.; Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.; Univ Florida, Gainesville, FL USA.; Florida Int Univ, Miami, FL 33199 USA.; Florida State Univ, Tallahassee, FL 32306 USA.; Florida Inst Technol, Melbourne, FL 32901 USA.; UIC, Chicago, IL USA.; Univ Iowa, Iowa City, IA USA.; Johns Hopkins Univ, Baltimore, MD USA.; Univ Kansas, Lawrence, KS USA.; Kansas State Univ, Manhattan, KS 66506 USA.; Lawrence Livermore Natl Lab, Livermore, CA USA.; Univ Maryland, College Pk, MD 20742 USA.; MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.; Univ Minnesota, Minneapolis, MN USA.; Univ Mississippi, Oxford, MS USA.; Univ Nebraska Lincoln, Lincoln, NE USA.; SUNY Buffalo, Buffalo, NY USA.; Northeastern Univ, Boston, MA 02115 USA.; Northwestern Univ, Evanston, IL USA.; Univ Notre Dame, Notre Dame, IN 46556 USA.; Ohio State Univ, Columbus, MS USA.; Princeton Univ, Princeton, NJ 08544 USA.; Univ Puerto Rico, Mayaguez, PR USA.; Purdue Univ, W Lafayette, IN 47907 USA.; Purdue Univ Northwest, Hammond, LA USA.; Rice Univ, Houston, TX USA.; Univ Rochester, Rochester, MI USA.; Rutgers State Univ, Piscataway, NJ USA.; Univ Tennessee, Knoxville, TN USA.; Texas A&M Univ, College Stn, TX USA.; Texas Tech Univ, Lubbock, TX 79409 USA.; Vanderbilt Univ, 221 Kirkland Hall, Nashville, TN 37235 USA.; Univ Virginia, Charlottesville, VA USA.; Wayne State Univ, Detroit, MI USA.; Univ Wisconsin Madison, Madison, WI USA.; Vienna Univ Technol, Vienna, Austria.; Univ Estadual Campinas, Campinas, SP, Brazil.; Univ Fed Pelotas, Pelotas, Brazil.; Univ Antioquia, Medellin, Colombia.; Cairo Univ, Cairo, Egypt.; Fayoum Univ, Al Fayyum, Egypt.; British Univ Egypt, Cairo, Egypt.; Ain Shams Univ, Cairo, Egypt.; Univ Haute Alsace, Mulhouse, France.; Brandenburg Tech Univ Cottbus, Cottbus, Germany.; Eotvos Lorand Univ, MTA ELTE Lendullet CMS Particle, Budapest, Hungary.; Indian Inst Technol Bhubaneswar, Bhubaneswar, Orissa, India.; Univ Visva Bharati, Santini Ketan, W Bengal, India.; Indian Inst Sci Educ & Res, Bhopal, India.; Inst Phys, Bhubaneswar, Orissa, India.; Univ Ruhuna, Matara, Sri Lanka.; Isfahan Univ Technol, Esfahan, Iran.; Yazd Univ, Yazd, Iran.; Islamic Azad Univ, Plasma Phys Res Ctr, Sci & Res Branch, Tehran, Iran.; Univ Siena, Siena, Italy.; Purdue Univ, W Lafayette, IN USA.; Int Islamic Univ Malaysia, Kuala Lumpur, Malaysia.; MOSTI, Malaysian Nucl Agcy, Kajang, Malaysia.; Consejo Nacl Ciencia & Technol, Mexico City, DF, Mexico.; Warsaw Univ Technol, Inst Elect Syst, Warsaw, Poland.; Natl Res Nucl Univ, Moscow Engn Phys Inst MEPHI, Moscow, Russia.; St Petersburg State Polytechn Univ, St Petersburg, Russia.; Budker Inst Nucl Phys, Novosibirsk, Russia.; Univ Roma, Rome, Italy.; Ist Nazl Fis Nucl, Scuola Normale & Sez, Pisa, Italy.; Riga Tech Univ, Riga, Latvia.; Albert Einstein Ctr Fundamental Phys, Bern, Switzerland.; Gaziosmanpasa Univ, Tokat, Turkey.; Istanbul Aydin Univ, Istanbul, Turkey.; Mersin Univ, Mersin, Turkey.; Cag Univ, Mersin, Turkey.; Piri Reis Univ, Istanbul, Turkey.; Adiyaman Univ, Adiyaman, Turkey.; Ozyegin Univ, Istanbul, Turkey.; Izmir Inst Technol, Izmir, Turkey.; Marmara Univ, Istanbul, Turkey.; Kafkas Univ, Kars, Turkey.; Istanbul Bilgi Univ, Istanbul, Turkey.; Yildiz Tech Univ, Istanbul, Turkey.; Hacettepe Univ, Ankara, Turkey.; Univ Southampton, Sch Phys & Astron, Southampton, Hants, England.; Inst Astrofis Canarias, San Cristobal la Laguna, Spain.; Utah Valley Univ, Orem, UT USA.; Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.; Erzincan Univ, Erzincan, Turkey.; Mimar Sinan Univ, Istanbul, Turkey.; Texas A&M Univ Qatar, Doha, Qatar.
    • Publication Information:
      JOURNAL OF HIGH ENERGY PHYSICS
    • Publication Date:
      2017
    • Collection:
      Peking University Institutional Repository (PKU IR) / 北京大学机构知识库
    • 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 tau lepton, and at least two jets, using a root 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 beta(2), where beta is the branching fraction of leptoquark decay to a tau lepton and a bottom quark. Assuming beta = 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 tau leptons in the final state. ; BMWFW (Austria); FWF (Austria); FNRS (Belgium); FWO (Belgium); CNPq, (Brazil); CAPES, (Brazil); FAPERJ, (Brazil); FAPESP (Brazil); MES (Bulgaria); CERN; CAS, (China); MoST, (China); NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); CSF (Croatia); RPF (Cyprus); SENESCYT (Ecuador); MoER, (Estonia); ERC IUT, (Estonia); ERDF (Estonia); Academy of Finland; MEC (Finland); HIP (Finland); CEA (France); CNRS/IN2P3 (France); BMBF (Germany); DFG (Germany); HGF (Germany); GSRT (Greece); OTKA (Hungary); NIH (Hungary); DAE (India); DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP (Republic of Korea); NRF (Republic of Korea); LAS (Lithuania); MOE (Malaysia); UM (Malaysia); BUAP (Mexico); CINVESTAV (Mexico); CONACYT (Mexico); LNS (Mexico); SEP (Mexico); UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE (Poland); NSC (Poland); FCT (Portugal); JINR (Dubna); MON (Russia); RosAtom (Russia); RAS (Russia); RFBR (Russia); RAEP (Russia); MESTD (Serbia); SEIDI (Spain); CPAN (Spain); PCTI (Spain); FEDER (Spain); Swiss Funding Agencies (Switzerland); MST (Taipei); ThEPCenter (Thailand); IPST (Thailand); TUBITAK (Turkey); TAEK (Turkey); NASU (Ukraine); SFFR (Ukraine); STFC (United Kingdom); DOE (U.S.A.); NSF (U.S.A.); Marie-Curie programme; European Research Council; EPLANET (European Union); Leventis Foundation; A.P. Sloan Foundation; Alexander von Humboldt Foundation; Belgian Federal Science Policy Office; Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); Ministry of Education, Youth and Sports (MEYS) of the Czech Republic; Council of Science and Industrial Research, India; HOMING PLUS programme of the Foundation for Polish Science; European Union, Regional Development Fund; Mobility Plus programme of the Ministry of Science and Higher Education; National Science Center (Poland) [Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406]; Qatar National Research Fund; Programa Clarin-COFUND del Principado de Asturias; EU-ESF; Greek NSRF; Rachadapisek Sompot Fund for Postdoctoral Fellowship; Chulalongkorn University; Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand); Welch Foundation [1845] ; SCI(E) ; ARTICLE ; 7
    • ISSN:
      1029-8479
    • Relation:
      JOURNAL OF HIGH ENERGY PHYSICS.2017.; 1906131; http://hdl.handle.net/20.500.11897/472008; WOS:000406883700001
    • Accession Number:
      10.1007/JHEP07(2017)121
    • Online Access:
      https://doi.org/20.500.11897/472008
      https://doi.org/10.1007/JHEP07(2017)121
      https://hdl.handle.net/20.500.11897/472008
    • Accession Number:
      edsbas.FA83DC42