Search for vectorlike leptons in multilepton final states in proton-proton collisions at √s=13 TeV

被引：44

作者：

Sirunyan, A. M. ^{[1
]}

Tumasyan, A. ^{[1
]}

Adam, W. ^{[2
]}

Ambrogi, F. ^{[2
]}

Asilar, E. ^{[2
]}

Bergauer, T. ^{[2
]}

Brandstetter, J. ^{[2
]}

Dragicevic, M. ^{[2
]}

Eroe, J. ^{[2
]}

Del Valle, A. Escalante ^{[2
]}

Flechl, M. ^{[2
]}

Fruehwirth, R. ^{[2
,203
]}

Ghete, V. M. ^{[2
]}

Hrubec, J. ^{[2
]}

Jeitler, M. ^{[2
,203
]}

Krammer, N. ^{[2
]}

Kraetschmer, I. ^{[2
]}

Liko, D. ^{[2
]}

Madlener, T. ^{[2
]}

Mikulec, I. ^{[2
]}

Rad, N. ^{[2
]}

Rohringer, H. ^{[2
]}

Schieck, J. ^{[2
,203
]}

Schoefbeck, R. ^{[2
]}

Spanring, M. ^{[2
]}

Spitzbart, D. ^{[2
]}

Taurok, A. ^{[2
]}

Waltenberger, W. ^{[2
]}

Wittmann, J. ^{[2
]}

Wulz, C. -E. ^{[2
]}

Zarucki, M. ^{[2
]}

Chekhovsky, V. ^{[3
]}

Mossolov, V. ^{[3
]}

Gonzalez, J. Suarez ^{[3
]}

De Wolf, E. A. ^{[4
]}

Di Croce, D. ^{[4
]}

Janssen, X. ^{[4
]}

Lauwers, J. ^{[4
]}

Pieters, M. ^{[4
]}

Van De Klundert, M. ^{[4
]}

Janssen, X. ^{[4
]}

Lauwers, J. ^{[4
]}

Pieters, M. ^{[4
]}

Van De Klundert, M. ^{[4
]}

Van Haevermaet, H. ^{[4
]}

Van Mechelen, P. ^{[4
]}

Van Remortel, N. ^{[4
]}

Abu Zeid, S. ^{[5
]}

Blekman, F. ^{[5
]}

D'Hondt, J. ^{[5
]}

机构：

[1] Yerevan Phys Inst, Yerevan, Armenia

[2] Inst Hochenergiephysik, Vienna, Austria

[3] Inst Nucl Problems, Minsk, BELARUS

[4] Univ Antwerp, Antwerp, Belgium

[5] Vrije Univ Brussel, Brussels, Belgium

[6] Univ Libre Bruxelles, Brussels, Belgium

[7] Univ Ghent, Ghent, Belgium

[8] Catholic Univ Louvain, Louvain, Belgium

[9] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[10] Univ Estado Rio De Janeiro, Rio De Janeiro, Brazil

[11] Univ Estadual Paulista, Sao Paulo, Brazil

[12] Univ Fed ABC, Sao Paulo, Brazil

[13] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[14] Univ Sofia, Sofia, Bulgaria

[15] Beihang Univ, Beijing, Peoples R China

[16] Inst High Energy Phys, Beijing, Peoples R China

[17] Peking Univ, State Key Lab Nucl Phys Technol, Beijing, Peoples R China

[18] Tsinghua Univ, Beijing, Peoples R China

[19] Univ Los Andes, Bogota, Colombia

[20] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[21] Univ Split, Fac Sci, Split, Croatia

[22] Inst Rudjer Boskov, Zagreb, Croatia

[23] Univ Cyprus, Nicosia, Cyprus

[24] Charles Univ Prague, Prague, Czech Republic

[25] Escuela Politec Nacl, Quito, Ecuador

[26] Univ San Francisco Quito, Quito, Ecuador

[27] Egyptian Network High Energy Phys, Acad Sci Res & Technol Arab Republ Egypt, Cairo, Egypt

[28] NICPB, Tallinn, Estonia

[29] Univ Helsinki, Dept Phys, Helsinki, Finland

[30] Helsinki Inst Phys, Helsinki, Finland

[31] Lappeenranta Univ Technol, Lappeenranta, Finland

[32] Univ Paris Saclay, IRFU, CEA, Gif Sur Yvette, France

[33] Univ Paris Saclay, CNRS IN2P3, Lab Leprince Ringuet, Ecole Polytech, Palaiseau, France

[34] Univ Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France

[35] Ctr Calcul Inst Natl Phys Nucl & Phys Particules, CNRS IN2P3, Villeurbanne, France

[36] Univ Lyon, Univ Claude Bernard Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, Villeurbanne, France

[37] Georgian Tech Univ, Tbilisi, Georgia

[38] Tbilisi State Univ, Tbilisi, Georgia

[39] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany

[40] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[41] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany

[42] Deutch Elektronen Synchrotron, Hamburg, Germany

[43] Univ Hamburg, Hamburg, Germany

[44] Karlsruher Inst Technol, Karlsruhe, Germany

[45] INPP, NCSR Demokritos, Aghia Paraskevi, Greece

[46] Univ Athens, Natl & Kapodistrian, Athens, Greece

[47] Natl Tech Univ Athens, Athens, Greece

[48] Univ Ioannina, Ioannina, Greece

[49] Eotvos Lorand Univ, MTA ELTE Lendulet CMS Particle & Nucl Phys Grp, Budapest, Hungary

[50] Wigner Res Ctr Phys, Budapest, Hungary

来源：

PHYSICAL REVIEW D | 2019年 / 100卷 / 05期

基金：

巴西圣保罗研究基金会; 芬兰科学院; 欧洲研究理事会;

关键词：

D O I：

10.1103/PhysRevD.100.052003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for vectorlike leptons in multilepton final states is presented. The data sample corresponds to an integrated luminosity of 77.4 fb(-1) of proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS experiment at the LHC in 2016 and 2017. Events are categorized by the multiplicity of electrons, muons, and hadronically decaying tau leptons. The missing transverse momentum and the scalar sum of the lepton transverse momenta are used to distinguish the signal from background. The observed results are consistent with the expectations from the standard model hypothesis. The existence of a vectorlike lepton doublet, coupling to the third-generation standard model leptons in the mass range of 120-790 GeV, is excluded at 95% confidence level. These are the most stringent limits yet on the production of a vectorlike lepton doublet, coupling to the third-generation standard model leptons.

引用

页数：22

共 50 条

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Tumasyan, A.
Adam, W.
Ambrogi, F.
Asilar, E.
Bergauer, T.
Brandstetter, J.
Brondolin, E.
Dragicevic, M.
Eroe, J.
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Friedl, M.
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[J]. JOURNAL OF HIGH ENERGY PHYSICS, 2019, (04):
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