(CMS Collaboration)
Godinović, Nikola; Chatrchyan, S.; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko; Đurić, Senka; Kadija, Krešo; Luetić, Jelena; Mekterović, Darko; Morović, Srećko; Swanson, J.
(2012)
Search for heavy Majorana neutrinos in mu+mu+[mu-mu-]+jets and e+e+[e-e-]+jets events in pp collisions at sqrt(s) = 7 TeV.
Physics Letters B, 717
(1/3).
pp. 109-128.
ISSN 0370-2693
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 4.98 inverse femtobarns 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, abs(V[ell N]) squared, for ell = e, mu, as a function of heavy Majorana-neutrino mass. These are the first direct upper limits on the heavy Majorana-neutrino mixing for m[N] > 90 GeV.
| Item Type: |
Article
|
| Uncontrolled Keywords: |
CMS; physics; heavy neutrino |
| Subjects: |
NATURAL SCIENCES > Physics |
| Divisions: |
Division of Experimental Physics |
| Projects: |
| Project title | Project leader | Project code | Project type |
|---|
| Experimental physics at LHC energies (Eksperimentalna fizika na LHC energijama) | Krešo Kadija | 098-0982887-2878 | MZOS | | Search for the Higgs boson and new physics with the CMS detector (Potraga za Higgsovim bozonom i novom fizikom detektorom CMS) | Ivica Puljak | 023-0982887-3064 | MZOS |
|
| Depositing User: |
Krešo Kadija
|
| Date Deposited: |
03 May 2016 14:14 |
| URI: |
http://fulir.irb.hr/id/eprint/2775 |
| DOI: |
10.1016/j.physletb.2012.09.012 |
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2775
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