Search for excited leptons in pp collisions at s=7 TeV

CMS Collaboration

doi:10.1016/j.physletb.2013.02.031

Search for excited leptons in pp collisions at s=7 TeV

CMS Collaboration

CERN
A. Alikhanian Yerevan Institute of Physics
Austrian Academy of Sciences
TU Wien
Belarusian State University
University of Antwerp
German Electron Synchrotron
Vrije Universiteit Brussel
Université libre de Bruxelles
Ghent University
Université catholique de Louvain
National Institute of Chemical Physics and Biophysics, Tallinn
Universite de Mons
Centro Brasileiro de Pesquisas Físicas
Universidade do Estado do Rio de Janeiro
Universidade Estadual Paulista Júlio de Mesquita Filho
Universidade Federal do ABC
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
Suez Canal University
Cairo University
Zewail City of Science and Technology
Al-Fayoum University
The British University in Egypt
Ain Shams University
University of Helsinki
Helsinki Institute of Physics
Lappeenranta-Lahti University of Technology
Commissariat à l’énergie atomique et aux énergies alternatives
Laboratoire Leprince-Ringuet
National Centre for Nuclear Research
Université de Strasbourg
Université de Haute-Alsace
CNRS/IN2P3
Universite Claude Bernard Lyon 1
Ivane Javakhishvili Tbilisi State University
Joint Institute for Nuclear Research
RWTH Aachen University
Brandenburg University of Technology
University of Hamburg
Karlsruhe Institute of Technology
Lomonosov Moscow State University
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
Panjab University
University of Delhi
Saha Institute of Nuclear Physics
Homi Bhabha National Institute
Tata Institute of Fundamental Research
Visva-Bharati University
Institute for Research for Fundamental Sciences
Isfahan University of Technology
Sharif University of Technology
Islamic Azad University
National Institute for Nuclear Physics
University of Bari
Polytechnic University of Bari
University of Bologna
University of Catania
University of Florence
University of Rome La Sapienza
University of Genoa
University of Milan - Bicocca
University of Naples Federico II
University of Basilicata
Università Degli Studi Guglielmo Marconi
University of Padua
University of Trento
University of Pavia
University of Perugia
Scuola Normale Superiore di Pisa
University of Pisa
University of Siena
University of Bucharest
University of Turin
University of Eastern Piedmont
University of Trieste
Kangwon National University
Kyungpook National University
Chonnam National University
Korea University
University of Seoul
Sungkyunkwan University
Vilnius University
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
Universidad Iberoamericana (UIA)
Benemerita Universidad Autonoma de Puebla
Universidad Autonoma de San Luis Potosi
The University of Auckland
University of Canterbury
Quaid-I-Azam University
University of Warsaw
Laboratório de Instrumentação e Física Experimental de Partículas
RAS - Saint Petersburg Nuclear Physics Institute
RAS - Institute for Nuclear Research
Alikhanov Institute for Theoretical and Experimental Physics
California Institute of Technology
RAS - P.N. Lebedev Physics Institute
Institute for High Energy Physics
University of Belgrade
CIEMAT
Universidad Autónoma de Madrid
University of Oviedo
Universidad de Cantabria
University of California at Los Angeles
Institut Polytechnique de Paris
Eotvos Lorand University
Paul Scherrer Institute
University of Kansas
Swiss Federal Institute of Technology Zurich
University of Zurich
National Central University
National Taiwan University
Chulalongkorn University
Cukurova University
Izmir Institute of Technology
University of Iowa
Mersin University
Adiyaman University
Gaziosmanpasa University
Middle East Technical University
Bogazici University
Ozyegin University
Kafkas University
Suleyman Demirel University
Ege University
Istanbul Technical University
NASU - Kharkov Institute of Physics and Technology
University of Bristol
Rutherford Appleton Laboratory
University of Southampton
Imperial College London
Brunel University London
Baylor University
University of Alabama
Boston University
Brown University
University of California at Davis
University of California at Riverside
University of Sydney
University of California at San Diego
Utah Valley University
University of California at Santa Barbara
Carnegie Mellon University
University of Colorado Boulder
Cornell University
Fairfield University
Fermi National Accelerator Laboratory
University of Florida
Florida International University
Florida State University
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Argonne National Laboratory
Erzincan University
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Araştırma çıktısı: Dergi yayını › Makale › Hakem

20 Atıf (Scopus)

Özet

Results are presented of a search for compositeness in electrons and muons using a data sample of pp collisions at a center-of-mass energy s=7 TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 5.0 fb⁻¹. Excited leptons (ℓ^⁎) are assumed to be produced via contact interactions in conjunction with a standard model lepton and to decay via ℓ^⁎→ℓγ, yielding a final state with two energetic leptons and a photon. The number of events observed in data is consistent with that expected from the standard model. The 95% confidence upper limits for the cross section for the production and decay of excited electrons (muons), with masses ranging from 0.6 to 2 TeV, are 1.48 to 1.24 fb (1.31 to 1.11 fb). Excited leptons with masses below 1.9 TeV are excluded for the case where the contact interaction scale equals the excited lepton mass. The limits on the cross sections are the most stringent ones published to date.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	309-329
Sayfa sayısı	21
Dergi	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Hacim	720
Basın numarası	4-5
DOI'lar	https://doi.org/10.1016/j.physletb.2013.02.031
Yayın durumu	Yayınlandı - 26 Mar 2013
Harici olarak yayınlandı	Evet

Bibliyografik not

Publisher Copyright:
© 2013 CERN

Finansman

We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq , CAPES , FAPERJ , and FAPESP (Brazil); MES (Bulgaria); CERN ; CAS , MoST , and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER , SF0690030s09 and ERDF (Estonia); Academy of Finland , MEC , and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF , DFG , and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); I± (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV , CONACYT , SEP , and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON , RosAtom , RAS and RFBR (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie programme and the European Research Council (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 à la Recherche dans lʼIndustrie et dans lʼAgriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Council of Scientific and Industrial Research , India; and the HOMING PLUS programme of Foundation for Polish Science , cofinanced from European Union, Regional Development Fund .

Finansörler	Finansör numarası
???publication-publication-funding-organisation-not-added???	ST/H00081X/2
CPAN
FMSR
FRIA-Belgium
IWT-Belgium
MON
MSES
MSHE
MSTD
MoER	SF0690030s09
Swiss Funding Agencies
TUBITAK
UASLP-FAI
National Science Foundation	1151640, 0969555, 1205960, 1211067
U.S. Department of Energy
Alfred P. Sloan Foundation
Hispanics in Philanthropy
Alexander von Humboldt-Stiftung
Western Carolina University
Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
California Earthquake Authority
Secretaría de Educación Pública
Türkiye Atom Enerjisi Kurumu
Louisiana Academy of Sciences
CERN
Science and Technology Facilities Council	ST/L00609X/1, ST/I505572/1, ST/I005912/1, ST/J005665/1, ST/J004901/1, ST/K001604/1, ST/K003844/1, GRIDPP, ST/F007094/1
European Commission
European Research Council
Department of Science and Technology, Ministry of Science and Technology, India
Council of Scientific and Industrial Research, India
Department of Atomic Energy, Government of India
Ministry of Science and Innovation, New Zealand
Taighde Éireann - Research Ireland
Helmholtz-Gemeinschaft
Deutsche Forschungsgemeinschaft
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung	123501
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Research Promotion Foundation
National Science Council
Fundacja na rzecz Nauki Polskiej
Fundação para a Ciência e a Tecnologia
Russian Foundation for Basic Research
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Academy of Finland
Bundesministerium für Bildung und Forschung
Chinese Academy of Sciences
Fonds De La Recherche Scientifique - FNRS
Russian Academy of Sciences
Belgian Federal Science Policy Office
Fonds Wetenschappelijk Onderzoek
Agentschap voor Innovatie door Wetenschap en Technologie
Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture
Consejo Nacional de Ciencia y Tecnología
Ministerio de Economía y Competitividad
General Secretariat for Research and Technology
Hungarian Scientific Research Fund
Conselho Nacional de Desenvolvimento Científico e Tecnológico
National Research Foundation of Korea
Joint Institute for Nuclear Research
Nemzeti Kutatási és Technológiai Hivatal
Instituto Nazionale di Fisica Nucleare
A.G. Leventis Foundation
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Ministry of Science and Technology, Taiwan
Centre National de la Recherche Scientifique
Ministerio de Ciencia e Innovación
Ministry of Education and Science
European Regional Development Fund
State Atomic Energy Corporation ROSATOM
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
Pakistan Atomic Energy Commission
Institut National de Physique Nucléaire et de Physique des Particules

Belgeye Erişim

10.1016/j.physletb.2013.02.031

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Search for excited leptons in pp collisions at s=7 TeV",

abstract = "Results are presented of a search for compositeness in electrons and muons using a data sample of pp collisions at a center-of-mass energy s=7 TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 5.0 fb−1. Excited leptons (ℓ⁎) are assumed to be produced via contact interactions in conjunction with a standard model lepton and to decay via ℓ⁎→ℓγ, yielding a final state with two energetic leptons and a photon. The number of events observed in data is consistent with that expected from the standard model. The 95\% confidence upper limits for the cross section for the production and decay of excited electrons (muons), with masses ranging from 0.6 to 2 TeV, are 1.48 to 1.24 fb (1.31 to 1.11 fb). Excited leptons with masses below 1.9 TeV are excluded for the case where the contact interaction scale equals the excited lepton mass. The limits on the cross sections are the most stringent ones published to date.",

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author = "\{CMS Collaboration\} and S. Chatrchyan and V. Khachatryan and Sirunyan, \{A. M.\} and A. Tumasyan and W. Adam and E. Aguilo 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 J. Hammer 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 M. Pernicka and B. Rahbaran and C. Rohringer and H. Rohringer and R. Sch{\"o}fbeck and J. Strauss and A. Taurok and W. Waltenberger and G. Walzel and E. Widl and Wulz, \{C. E.\} and V. Mossolov and N. Shumeiko and \{Suarez Gonzalez\}, J. and M. Bansal and S. Bansal and T. Cornelis and \{De Wolf\}, \{E. A.\} and X. Janssen and S. Luyckx and L. Mucibello and S. Ochesanu and B. Roland and R. Rougny and M. Selvaggi and Z. Staykova and A. Cakir",

note = "Publisher Copyright: {\textcopyright} 2013 CERN",

year = "2013",

month = mar,

day = "26",

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AU - CMS Collaboration

AU - Chatrchyan, S.

AU - Khachatryan, V.

AU - Sirunyan, A. M.

AU - Tumasyan, A.

AU - Adam, W.

AU - Aguilo, E.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Erö, J.

AU - Fabjan, C.

AU - Friedl, M.

AU - Frühwirth, R.

AU - Ghete, V. M.

AU - Hammer, J.

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 - Pernicka, M.

AU - Rahbaran, B.

AU - Rohringer, C.

AU - Rohringer, H.

AU - Schöfbeck, R.

AU - Strauss, J.

AU - Taurok, A.

AU - Waltenberger, W.

AU - Walzel, G.

AU - Widl, E.

AU - Wulz, C. E.

AU - Mossolov, V.

AU - Shumeiko, N.

AU - Suarez Gonzalez, J.

AU - Bansal, M.

AU - Bansal, S.

AU - Cornelis, T.

AU - De Wolf, E. A.

AU - Janssen, X.

AU - Luyckx, S.

AU - Mucibello, L.

AU - Ochesanu, S.

AU - Roland, B.

AU - Rougny, R.

AU - Selvaggi, M.

AU - Staykova, Z.

AU - Cakir, A.

PY - 2013/3/26

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N2 - Results are presented of a search for compositeness in electrons and muons using a data sample of pp collisions at a center-of-mass energy s=7 TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 5.0 fb−1. Excited leptons (ℓ⁎) are assumed to be produced via contact interactions in conjunction with a standard model lepton and to decay via ℓ⁎→ℓγ, yielding a final state with two energetic leptons and a photon. The number of events observed in data is consistent with that expected from the standard model. The 95% confidence upper limits for the cross section for the production and decay of excited electrons (muons), with masses ranging from 0.6 to 2 TeV, are 1.48 to 1.24 fb (1.31 to 1.11 fb). Excited leptons with masses below 1.9 TeV are excluded for the case where the contact interaction scale equals the excited lepton mass. The limits on the cross sections are the most stringent ones published to date.

AB - Results are presented of a search for compositeness in electrons and muons using a data sample of pp collisions at a center-of-mass energy s=7 TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 5.0 fb−1. Excited leptons (ℓ⁎) are assumed to be produced via contact interactions in conjunction with a standard model lepton and to decay via ℓ⁎→ℓγ, yielding a final state with two energetic leptons and a photon. The number of events observed in data is consistent with that expected from the standard model. The 95% confidence upper limits for the cross section for the production and decay of excited electrons (muons), with masses ranging from 0.6 to 2 TeV, are 1.48 to 1.24 fb (1.31 to 1.11 fb). Excited leptons with masses below 1.9 TeV are excluded for the case where the contact interaction scale equals the excited lepton mass. The limits on the cross sections are the most stringent ones published to date.

KW - CMS

KW - Physics

UR - https://www.scopus.com/pages/publications/85035810716

U2 - 10.1016/j.physletb.2013.02.031

DO - 10.1016/j.physletb.2013.02.031

M3 - Article

AN - SCOPUS:85035810716

SN - 0370-2693

VL - 720

SP - 309

EP - 329

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4-5

ER -

Search for excited leptons in pp collisions at s=7 TeV

Özet

Bibliyografik not

Finansman

Belgeye Erişim

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