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Pregled bibliografske jedinice broj: 814818

Search for heavy Majorana neutrinos in mu+/- mu+/- + jets events in proton-proton collisions at sqrt(s) = 8 TeV


Khachatryan, Vardan; ...; Morović, Srećko; Ferenček, Dinko; Đurić, Senka; Godinović, Nikola; Lelas, Damir; Polić, Dunja; Puljak, Ivica; Antunović, Željko et al.
Search for heavy Majorana neutrinos in mu+/- mu+/- + jets events in proton-proton collisions at sqrt(s) = 8 TeV // Physics letters B, 748 (2015), 144-166 doi:10.1016/j.physletb.2015.06.070 (međunarodna recenzija, članak, znanstveni)


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Naslov
Search for heavy Majorana neutrinos in mu+/- mu+/- + jets events in proton-proton collisions at sqrt(s) = 8 TeV
(Search for heavy Majorana neutrinos in μ±μ± + jets events in proton-proton collisions at s=8 TeV)

Autori
Khachatryan, Vardan ; ... ; Morović, Srećko ; Ferenček, Dinko ; Đurić, Senka ; Godinović, Nikola ; Lelas, Damir ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Kadija, Krešo ; Luetić, Jelena ; Mekterović, Darko ; Sudić, Lucija ; ... ; Woods, Nate

Izvornik
Physics letters B (0370-2693) 748 (2015); 144-166

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
high energy physics ; experimental particle physics ; LHC ; CMS ; standard model

Sažetak
A search is performed for heavy Majorana neutrinos (N) using an event signature defined by two muons of the same charge and two jets (mu+/- mu+/- jj). The data correspond to an integrated luminosity of 19.7 inverse femtobarns of proton-proton collisions at a center-of-mass energy of 8 TeV, collected with the CMS detector at the CERN LHC. No excess of events is observed beyond the expected standard model background and upper limits are set on abs(V[mu, N])^2 as a function of Majorana neutrino mass m[N] for masses in the range of 40-500 GeV, where V[mu, N] is the mixing element of the heavy neutrino with the standard model muon neutrino. The limits obtained are abs(V[mu, N])^2 < 0.00470 for m[N] = 90 GeV, abs(V[mu, N])^2 < 0.0123 for m[N] = 200 GeV, and abs(V[mu, N])^2 < 0.583 for m[N] = 500 GeV. These results extend considerably the regions excluded by previous direct searches.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
CMS Collaboration



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2013-11-7118 - Mjerenje svojstava Higgsovog bozona i potraga za novom fizikom detektorom CMS (Ivica Puljak, )
HRZZ-IS-09.01/346 - Potraga za novim standardnim modelom elementarnih čestica na LHC-u: od preciznih mjerenja elektroslabih procesa do direktnih potraga za novom fizikom (Vuko Brigljević, )

Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Split

Citiraj ovu publikaciju

Khachatryan, Vardan; ...; Morović, Srećko; Ferenček, Dinko; Đurić, Senka; Godinović, Nikola; Lelas, Damir; Polić, Dunja; Puljak, Ivica; Antunović, Željko et al.
Search for heavy Majorana neutrinos in mu+/- mu+/- + jets events in proton-proton collisions at sqrt(s) = 8 TeV // Physics letters B, 748 (2015), 144-166 doi:10.1016/j.physletb.2015.06.070 (međunarodna recenzija, članak, znanstveni)
Khachatryan, V., ..., Morović, S., Ferenček, D., Đurić, S., Godinović, N., Lelas, D., Polić, D., Puljak, I. & Antunović, Ž. (2015) Search for heavy Majorana neutrinos in mu+/- mu+/- + jets events in proton-proton collisions at sqrt(s) = 8 TeV. Physics letters B, 748, 144-166 doi:10.1016/j.physletb.2015.06.070.
@article{article, year = {2015}, pages = {144-166}, DOI = {10.1016/j.physletb.2015.06.070}, keywords = {high energy physics, experimental particle physics, LHC, CMS, standard model}, journal = {Physics letters B}, doi = {10.1016/j.physletb.2015.06.070}, volume = {748}, issn = {0370-2693}, title = {Search for heavy Majorana neutrinos in μ±μ± + jets events in proton-proton collisions at s=8 TeV}, keyword = {high energy physics, experimental particle physics, LHC, CMS, standard model} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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