Search for third-generation scalar leptoquarks decaying to a top quark and a τ lepton at √s=13Te

CMS Collaboration

doi:10.1140/epjc/s10052-018-6143-z

Search for third-generation scalar leptoquarks decaying to a top quark and a τ lepton at √s=13Te

CMS Collaboration

Yerevan Physics Institute
Institut für Hochenergiephysik
Vienna University of Technology
Institute for Nuclear Problems of Belarusian State University
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Centro Brasileiro de Pesquisas Fisicas
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Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
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European Organization for Nuclear Research
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University of Cyprus
Charles University
Joint Institute for Nuclear Research, Dubna
Universidad San Francisco de Quito
Egyptian Network of High Energy Physics
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National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
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IGFL, Université de Lyon, Université Lyon 1
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University of Ioannina
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Wigner Research Centre for Physics
Institute of Nuclear Research ATOMKI
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Indian Institute of Science
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Panjab University
Indian Institute of Science Education and Research (IISER)
University of Delhi
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Tata Institute of Fundamental Research, Mumbai
Northwestern University
Indian Institute of Technology Madras
Bhabha Atomic Research Centre
Fermi National Accelerator Laboratory
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Islamic Azad University, Science and Research Branch
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Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a τ lepton, is presented. The search considers final states with an electron or a muon, one or two τ leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton–proton collisions at s=13Te with the CMS detector at the LHC, and correspond to an integrated luminosity of 35.9fb-1. No evidence for pair production of LQs is found. Assuming a branching fraction of unity for the decay LQ → t τ, upper limits on the production cross section are set as a function of LQ mass, excluding masses below 900Ge at 95% confidence level. These results provide the most stringent limits to date on the production of scalar LQs that decay to a top quark and a τ lepton.

langue originale	Anglais
Numéro d'article	707
journal	European Physical Journal C
Volume	78
Numéro de publication	9
Les DOIs	https://doi.org/10.1140/epjc/s10052-018-6143-z
état	Publié - 1 sept. 2018
Modification externe	Oui

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10.1140/epjc/s10052-018-6143-z

Contient cette citation

@article{b48c888d7b3e41a0b2c4dfd3c0041768,

title = "Search for third-generation scalar leptoquarks decaying to a top quark and a τ lepton at √s=13Te",

abstract = "A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a τ lepton, is presented. The search considers final states with an electron or a muon, one or two τ leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton–proton collisions at s=13Te with the CMS detector at the LHC, and correspond to an integrated luminosity of 35.9fb-1. No evidence for pair production of LQs is found. Assuming a branching fraction of unity for the decay LQ → t τ, upper limits on the production cross section are set as a function of LQ mass, excluding masses below 900Ge at 95\% confidence level. These results provide the most stringent limits to date on the production of scalar LQs that decay to a top quark and a τ lepton.",

author = "\{CMS Collaboration\} and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and F. Ambrogi and E. Asilar and T. Bergauer and J. Brandstetter and E. Brondolin and M. Dragicevic and J. Er{\"o} and \{Escalante Del Valle\}, A. and M. Flechl and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and J. Grossmann and J. Hrubec and M. Jeitler and A. K{\"o}nig and N. Krammer and I. Kr{\"a}tschmer and D. Liko and T. Madlener and I. Mikulec and E. Pree and N. Rad and H. Rohringer and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and D. Spitzbart and A. Taurok and W. Waltenberger and J. Wittmann and Wulz, \{C. E.\} and M. Zarucki and V. Chekhovsky and V. Mossolov and Gonzalez, \{J. Suarez\} and \{De Wolf\}, \{E. A.\} and \{Di Croce\}, D. and X. Janssen and \{Granier de Cassagnac\}, R. and M. Nguyen and C. Ochando and P. Paganini and R. Salerno and A. Zabi and A. Zghiche and \{De Wit\}, A.",

note = "Publisher Copyright: {\textcopyright} 2018, CERN for the benefit of the CMS collaboration.",

year = "2018",

month = sep,

day = "1",

doi = "10.1140/epjc/s10052-018-6143-z",

language = "English",

volume = "78",

journal = "European Physical Journal C",

issn = "1434-6044",

number = "9",

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TY - JOUR

T1 - Search for third-generation scalar leptoquarks decaying to a top quark and a τ lepton at √s=13Te

AU - CMS Collaboration

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Ambrogi, F.

AU - Asilar, E.

AU - Bergauer, T.

AU - Brandstetter, J.

AU - Brondolin, E.

AU - Dragicevic, M.

AU - Erö, J.

AU - Escalante Del Valle, A.

AU - Flechl, M.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Grossmann, J.

AU - Hrubec, J.

AU - Jeitler, M.

AU - König, A.

AU - Krammer, N.

AU - Krätschmer, I.

AU - Liko, D.

AU - Madlener, T.

AU - Mikulec, I.

AU - Pree, E.

AU - Rad, N.

AU - Rohringer, H.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Spitzbart, D.

AU - Taurok, A.

AU - Waltenberger, W.

AU - Wittmann, J.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Chekhovsky, V.

AU - Mossolov, V.

AU - Gonzalez, J. Suarez

AU - De Wolf, E. A.

AU - Di Croce, D.

AU - Janssen, X.

AU - Granier de Cassagnac, R.

AU - Nguyen, M.

AU - Ochando, C.

AU - Paganini, P.

AU - Salerno, R.

AU - Zabi, A.

AU - Zghiche, A.

AU - De Wit, A.

PY - 2018/9/1

Y1 - 2018/9/1

N2 - A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a τ lepton, is presented. The search considers final states with an electron or a muon, one or two τ leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton–proton collisions at s=13Te with the CMS detector at the LHC, and correspond to an integrated luminosity of 35.9fb-1. No evidence for pair production of LQs is found. Assuming a branching fraction of unity for the decay LQ → t τ, upper limits on the production cross section are set as a function of LQ mass, excluding masses below 900Ge at 95% confidence level. These results provide the most stringent limits to date on the production of scalar LQs that decay to a top quark and a τ lepton.

AB - A search for pair production of heavy scalar leptoquarks (LQs), each decaying into a top quark and a τ lepton, is presented. The search considers final states with an electron or a muon, one or two τ leptons that decayed to hadrons, and additional jets. The data were collected in 2016 in proton–proton collisions at s=13Te with the CMS detector at the LHC, and correspond to an integrated luminosity of 35.9fb-1. No evidence for pair production of LQs is found. Assuming a branching fraction of unity for the decay LQ → t τ, upper limits on the production cross section are set as a function of LQ mass, excluding masses below 900Ge at 95% confidence level. These results provide the most stringent limits to date on the production of scalar LQs that decay to a top quark and a τ lepton.

U2 - 10.1140/epjc/s10052-018-6143-z

DO - 10.1140/epjc/s10052-018-6143-z

M3 - Article

AN - SCOPUS:85052741118

SN - 1434-6044

VL - 78

JO - European Physical Journal C

JF - European Physical Journal C

IS - 9

M1 - 707

ER -

Search for third-generation scalar leptoquarks decaying to a top quark and a τ lepton at √s=13Te

Résumé

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