Title
Search for heavy Majorana neutrinos in μ<sup>±</sup>μ<sup>±</sup>+jets and e<sup>±</sup>e<sup>±</sup>+jets events in pp collisions at s=7TeV
Date Issued
22 October 2012
Access level
open access
Resource Type
journal article
Author(s)
Chatrchyan S.
Khachatryan V.
Sirunyan A.M.
Tumasyan A.
Adam W.
Aguilo E.
Bergauer T.
Dragicevic M.
Erö J.
Fabjan C.
Friedl M.
Frühwirth R.
Ghete V.M.
Hammer J.
Hörmann N.
Hrubec J.
Jeitler M.
Kiesenhofer W.
Knünz V.
Krammer M.
Krätschmer I.
Liko D.
Mikulec I.
Pernicka M.
Rahbaran B.
Rohringer C.
Rohringer H.
Schöfbeck R.
Strauss J.
Taurok A.
Waltenberger W.
Walzel G.
Widl E.
Wulz C.E.
Mossolov V.
Shumeiko N.
Suarez Gonzalez J.
Bansal M.
Bansal S.
Cornelis T.
De Wolf E.A.
Janssen X.
Luyckx S.
Mucibello L.
Ochesanu S.
Roland B.
Rougny R.
Selvaggi M.
Staykova Z.
Van Haevermaet H.
Van Mechelen P.
Van Remortel N.
Van Spilbeeck A.
Blekman F.
Blyweert S.
D'Hondt J.
Gonzalez Suarez R.
Kalogeropoulos A.
Maes M.
Olbrechts A.
Van Doninck W.
Van Mulders P.
Van Onsem G.P.
Villella I.
Clerbaux B.
De Lentdecker G.
Dero V.
Gay A.P.R.
Hreus T.
Léonard A.
Marage P.E.
Reis T.
Thomas L.
Vander Marcken G.
Vander Velde C.
Vanlaer P.
Wang J.
Adler V.
Beernaert K.
Cimmino A.
Costantini S.
Garcia G.
Grunewald M.
Klein B.
Lellouch J.
Marinov A.
McCartin J.
Ocampo Rios A.A.
Ryckbosch D.
Strobbe N.
Thyssen F.
Tytgat M.
Verwilligen P.
Walsh S.
Yazgan E.
Zaganidis N.
Basegmez S.
Bruno G.
Castello R.
Ceard L.
Publisher(s)
Elsevier B.V.
Abstract
A search is performed for heavy Majorana neutrinos (N) using an event signature defined by two same-sign charged leptons of the same flavour and two jets. The data correspond to an integrated luminosity of 4.98fb-1 of pp collisions at a centre-of-mass energy of 7 TeV collected with the CMS detector at the Large Hadron Collider. No excess of events is observed beyond the expected standard model background and therefore upper limits are set on the square of the mixing parameter, |VℓN|2, for ℓ=e, μ, as a function of heavy Majorana-neutrino mass. These are the first direct upper limits on the heavy Majorana-neutrino mixing for mN>90GeV. © 2012 CERN.
Start page
109
End page
128
Volume
717
Issue
March 1
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Subjects
Scopus EID
2-s2.0-84867350302
Source
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN of the container
0370-2693
Sponsor(s)
We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staffs 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); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (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); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA).
Sources of information:
Directorio de Producción Científica
Scopus