Evidence for the 125 gev higgs boson decaying to a pair of τ leptons

The CMS collaboration

doi:10.1007/JHEP05(2014)104

Evidence for the 125 gev higgs boson decaying to a pair of τ leptons

The CMS collaboration

A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
Belarusian State University
University of Antwerp
University of Florida
Vrije Universiteit Brussel
Université libre de Bruxelles
Ghent University
Université catholique de Louvain
Universite de Mons
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro
Universidade Federal do ABC
Universidade Estadual Paulista Júlio de Mesquita Filho
Bulgarian Academy of Sciences
Sofia University St. Kliment Ohridski
CAS - Institute of High Energy Physics
Peking University
Universidad de los Andes Colombia
University of Split
Ruder Boskovic Institute
University of Cyprus
Charles University
Academy of Scientific Research and Technology
National Institute of Chemical Physics and Biophysics, Tallinn
University of Helsinki
Lappeenranta-Lahti University of Technology
Commissariat à l’énergie atomique et aux énergies alternatives
CNRS-Ecole Polytechnique-UPMC
Université de Strasbourg
CNRS/IN2P3
Universite Claude Bernard Lyon 1
Ivane Javakhishvili Tbilisi State University
RWTH Aachen University
German Electron Synchrotron
University of Hamburg
Karlsruhe Institute of Technology
Demokritos National Centre for Scientific Research
National and Kapodistrian University of Athens
University of Ioannina
Wigner Research Centre for Physics
Institute for Nuclear Research
University of Debrecen
National Institute of Science Education and Research
Panjab University
University of Delhi
Saha Institute of Nuclear Physics
Homi Bhabha National Institute
Tata Institute of Fundamental Research
Institute for Research for Fundamental Sciences
University College Dublin
National Institute for Nuclear Physics
University of Bari
Polytechnic University of Bari
University of Bologna
CSFNSM
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University of Florence
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University of Milan - Bicocca
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Università G. Marconi (Roma)
University of Naples Federico II
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University of Trento
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Scuola Normale Superiore di Pisa
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University of Rome La Sapienza
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Kangwon National University
Kyungpook National University
Chonnam National University
Korea University
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Vilnius University
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Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
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Benemerita Universidad Autonoma de Puebla
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The University of Auckland
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Laboratório de Instrumentação e Física Experimental de Partículas
Joint Institute for Nuclear Research
Petersburg Nuclear Physics Institute (PNPI)
Institute for Nuclear Research of the Russian Academy of Sciences
Alikhanov Institute for Theoretical and Experimental Physics
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
Lomonosov Moscow State University
Institute for High Energy Physics of National Research Centre ‘Kurchatov Institute’
University of Belgrade
CIEMAT
Universidad Autónoma de Madrid
University of Oviedo
Universidad de Cantabria
CERN
Paul Scherrer Institute
ETH Zurich - Institute for Particle Physics and Astrophysics (IPA)
University of Zurich
National Central University
National Taiwan University
Chulalongkorn University
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Middle East Technical University
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NASU - Kharkov Institute of Physics and Technology
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Imperial College London
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Research output: Contribution to journal › Article › peer-review

217 Scopus citations

Abstract

A search for a standard model Higgs boson decaying into a pair of τ leptons is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012. The dataset corresponds to an integrated luminosity of 4.9 fb^-1 at a centre-of-mass energy of 7TeV and 19.7fb^-1 at 8TeV. Each τ lepton decays hadronically or leptonically to an electron or a muon, leading to six different final states for the τ-lepton pair, all considered in this analysis. An excess of events is observed over the expected background contributions, with a local significance larger than 3 standard deviations for mH values between 115 and 130 GeV. The best fit of the observed H → ττ signal cross section times branching fraction for m_H = 125 GeV is 0.78±0.27 times the standard model expectation. These observations constitute evidence for the 125 GeV Higgs boson decaying to a pair of τ leptons.

Original language	English
Article number	104
Journal	Journal of High Energy Physics
Volume	2014
Issue number	5
DOIs	https://doi.org/10.1007/JHEP05(2014)104
State	Published - 2014
Externally published	Yes

Keywords

Hadron-Hadron Scattering
Higgs physics

Access to Document

10.1007/JHEP05(2014)104

Cite this

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title = "Evidence for the 125 gev higgs boson decaying to a pair of τ leptons",

abstract = "A search for a standard model Higgs boson decaying into a pair of τ leptons is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012. The dataset corresponds to an integrated luminosity of 4.9 fb-1 at a centre-of-mass energy of 7TeV and 19.7fb-1 at 8TeV. Each τ lepton decays hadronically or leptonically to an electron or a muon, leading to six different final states for the τ-lepton pair, all considered in this analysis. An excess of events is observed over the expected background contributions, with a local significance larger than 3 standard deviations for mH values between 115 and 130 GeV. The best fit of the observed H → ττ signal cross section times branching fraction for mH = 125 GeV is 0.78±0.27 times the standard model expectation. These observations constitute evidence for the 125 GeV Higgs boson decaying to a pair of τ leptons.",

keywords = "Hadron-Hadron Scattering, Higgs physics",

author = "\{The CMS collaboration\} and S. Chatrchyan and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and T. Bergauer and M. Dragicevic and J. Er{\"o} and C. Fabjan and M. Friedl and R. Fr{\"u}hwirth and Ghete, \{V. M.\} and C. Hartl and N. H{\"o}rmann and J. Hrubec and M. Jeitler and W. Kiesenhofer and V. Kn{\"u}nz and M. Krammer and I. Kr{\"a}tschmer and D. Liko and I. Mikulec and D. Rabady and B. Rahbaran and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and W. Treberer-Treberspurg and W. Waltenberger and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and S. Alderweireldt and M. Bansal and S. Bansal and T. Cornelis and \{De Wolf\}, \{E. A.\} and X. Janssen and A. Knutsson and S. Luyckx and S. Ochesanu and B. Roland and R. Rougny and \{Van Haevermaet\}, H. and \{Van Mechelen\}, P. and \{Van Remortel\}, N. and \{Van Spilbeeck\}, A. and T. Cheng",

note = "Publisher Copyright: {\textcopyright} CERN 2014",

year = "2014",

doi = "10.1007/JHEP05(2014)104",

language = "英语",

volume = "2014",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

number = "5",

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TY - JOUR

T1 - Evidence for the 125 gev higgs boson decaying to a pair of τ leptons

AU - The CMS collaboration

AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hartl, C.

AU - Hörmann, N.

AU - Hrubec, J.

AU - Jeitler, M.

AU - Kiesenhofer, W.

AU - Knünz, V.

AU - Krammer, M.

AU - Krätschmer, I.

AU - Liko, D.

AU - Mikulec, I.

AU - Rabady, D.

AU - Rahbaran, B.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Treberer-Treberspurg, W.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Alderweireldt, S.

AU - Bansal, M.

AU - Bansal, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Knutsson, A.

AU - Luyckx, S.

AU - Ochesanu, S.

AU - Roland, B.

AU - Rougny, R.

AU - Van Haevermaet, H.

AU - Van Mechelen, P.

AU - Van Remortel, N.

AU - Van Spilbeeck, A.

AU - Cheng, T.

PY - 2014

Y1 - 2014

N2 - A search for a standard model Higgs boson decaying into a pair of τ leptons is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012. The dataset corresponds to an integrated luminosity of 4.9 fb-1 at a centre-of-mass energy of 7TeV and 19.7fb-1 at 8TeV. Each τ lepton decays hadronically or leptonically to an electron or a muon, leading to six different final states for the τ-lepton pair, all considered in this analysis. An excess of events is observed over the expected background contributions, with a local significance larger than 3 standard deviations for mH values between 115 and 130 GeV. The best fit of the observed H → ττ signal cross section times branching fraction for mH = 125 GeV is 0.78±0.27 times the standard model expectation. These observations constitute evidence for the 125 GeV Higgs boson decaying to a pair of τ leptons.

AB - A search for a standard model Higgs boson decaying into a pair of τ leptons is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012. The dataset corresponds to an integrated luminosity of 4.9 fb-1 at a centre-of-mass energy of 7TeV and 19.7fb-1 at 8TeV. Each τ lepton decays hadronically or leptonically to an electron or a muon, leading to six different final states for the τ-lepton pair, all considered in this analysis. An excess of events is observed over the expected background contributions, with a local significance larger than 3 standard deviations for mH values between 115 and 130 GeV. The best fit of the observed H → ττ signal cross section times branching fraction for mH = 125 GeV is 0.78±0.27 times the standard model expectation. These observations constitute evidence for the 125 GeV Higgs boson decaying to a pair of τ leptons.

KW - Hadron-Hadron Scattering

KW - Higgs physics

UR - https://www.scopus.com/pages/publications/84925595714

U2 - 10.1007/JHEP05(2014)104

DO - 10.1007/JHEP05(2014)104

M3 - 文章

AN - SCOPUS:84925595714

SN - 1029-8479

VL - 2014

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 5

M1 - 104

ER -

Evidence for the 125 gev higgs boson decaying to a pair of τ leptons

Abstract

Keywords

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