Search for heavy lepton partners of neutrinos in protonaproton collisions in the context of the type III seesaw mechanism

CMS Collaboration; J Nachtman; C. R Newsom; Yasar Onel; J Wetzel

doi:10.1016/j.physletb.2012.10.070

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Search for heavy lepton partners of neutrinos in protonaproton collisions in the context of the type III seesaw mechanism

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Search for heavy lepton partners of neutrinos in protonaproton collisions in the context of the type III seesaw mechanism

CMS Collaboration, J Nachtman, C. R Newsom, Yasar Onel and J Wetzel

Physics letters. B, Vol.718(2), pp.348-368

12/05/2012

DOI: 10.1016/j.physletb.2012.10.070

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Abstract

A search is presented in protonaproton collisions at s = 7 TeV for fermionic triplet states expected in type III seesaw models. The search is performed using final states with three isolated charged leptons and an imbalance in transverse momentum. The data, collected with the CMS detector at the LHC, correspond to an integrated luminosity of 4.9 fb - 1 . No excess of events is observed above the background predicted by the standard model, and the results are interpreted in terms of limits on production cross sections and masses of the heavy partners of the neutrinos in type III seesaw models. Depending on the considered scenarios, lower limits are obtained on the mass of the heavy partner of the neutrino that range from 180 to 210 GeV . These are the first limits on the production of type III seesaw fermionic triplet states reported by an experiment at the LHC.

Charging

Collisions

Cross sections

Elementary particles

Leptons

Neutrinos

Searching

Details

Title: Subtitle: Search for heavy lepton partners of neutrinos in protonaproton collisions in the context of the type III seesaw mechanism
Creators: CMS Collaboration
J Nachtman (Contributor) - University of Iowa, Physics and Astronomy
C. R Newsom (Contributor) - University of Iowa, Physics and Astronomy
Yasar Onel (Contributor) - Physics and Astronomy
J Wetzel (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: Physics letters. B, Vol.718(2), pp.348-368
DOI: 10.1016/j.physletb.2012.10.070
ISSN: 0370-2693
eISSN: 1873-2445
Grant note: name: BMWF; name: FWF; name: FNRS; name: FWO; name: CNPq; name: CAPES; name: FAPERJ; name: FAPESP; name: MEYS; name: CERN; name: CAS; name: MoST; name: NSFC; name: COLCIENCIAS; name: MSES; name: RPF; name: MoER; name: SF0690030s09; name: ERDF; name: Academy of Finland; name: MEC; name: HIP; name: CEA; name: CNRS/IN2P3; name: BMBF; name: DFG; name: HGF; name: GSRT; name: OTKA; name: NKTH; name: DAE; name: DST; name: IPM; name: SFI; name: INFN; name: NRF; name: WCU; name: LAS; name: CINVESTAV; name: CONACYT; name: SEP; name: UASLP-FAI; name: MSI; name: PAEC; name: MSHE; name: NSC; name: FCT; name: JINR; name: MON; name: RosAtom; name: RAS; name: RFBR; name: MSTD; name: SEIDI; name: CPAN; name: Swiss Funding Agencies; name: NSC; name: ThEP; name: IPST; name: NECTEC; name: TUBITAK; name: TAEK; name: NASU; name: STFC; name: DOE; name: NSF; name: Marie-Curie programme and the European Research Council (European Union); name: Leventis Foundation; name: A.P. Sloan Foundation; name: Alexander von Humboldt Foundation; name: Belgian Federal Science Policy Office; name: Fonds pour la Formation à la Recherche dans lʼIndustrie et dans lʼAgriculture (FRIA-Belgium); name: Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); name: Ministry of Education, Youth and Sports (MEYS) of Czech Republic; name: Council of Science and Industrial Research, India; name: Compagnia di San Paolo (Torino); name: HOMING PLUS programme of Foundation for Polish Science
Language: English
Date published: 12/05/2012
Academic Unit: Physics and Astronomy
Record Identifier: 9984428808602771

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