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Pregled bibliografske jedinice broj: 672846

Search for a narrow, spin-2 resonance decaying to a pair of Z bosons in the q q-bar l+l- final state


Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Search for a narrow, spin-2 resonance decaying to a pair of Z bosons in the q q-bar l+l- final state // Physics letters. B, 718 (2013), 4/5; 1208-1228 doi:10.1016/j.physletb.2012.11.063 (međunarodna recenzija, članak, znanstveni)


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Naslov
Search for a narrow, spin-2 resonance decaying to a pair of Z bosons in the q q-bar l+l- final state

Autori
Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Damir ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Luetić, Jelena ; Morović, Srećko ; ... ; Mekterović, Darko ; ... ; Swanson, J.

Izvornik
Physics letters. B (0370-2693) 718 (2013), 4/5; 1208-1228

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

Ključne riječi
CMS; physics; Kaluza–Klein; graviton

Sažetak
Results are presented from a search for a narrow, spin-2 resonance decaying into a pair of Z bosons, with one Z-boson decaying into leptons (e+e- or mu+mu-) and the other into jets. An example of such a resonance is the Kaluza--Klein graviton, G[KK], predicted in Randall--Sundrum models. The analysis is based on a 4.9 inverse femtobarn sample of proton-proton collisions at a center-of-mass energy of 7 TeV, collected with the CMS detector at the LHC. Kinematic and topological properties including decay angular distributions are used to discriminate between signal and background. No evidence for a resonance is observed, and upper limits on the production cross sections times branching fractions are set. In two models that predict Z-boson spin correlations in graviton decays, graviton masses are excluded lower than a value which varies between 610 and 945 GeV, depending on the model and the strength of the graviton couplings.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
023-0982887-3064 - Potraga za Higgsovim bozonom i novom fizikom detektorom CMS (Ivica Puljak, )
098-0982887-2878 - Eksperimentalna fizika na LHC energijama (Krešo Kadija, )

Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb

Citiraj ovu publikaciju

Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Search for a narrow, spin-2 resonance decaying to a pair of Z bosons in the q q-bar l+l- final state // Physics letters. B, 718 (2013), 4/5; 1208-1228 doi:10.1016/j.physletb.2012.11.063 (međunarodna recenzija, članak, znanstveni)
Chatrchyan, S., ..., Godinović, N., Lelas, D., Pleština, R., Polić, D., Puljak, I., Antunović, Ž., Kovač, M. & Brigljević, V. (2013) Search for a narrow, spin-2 resonance decaying to a pair of Z bosons in the q q-bar l+l- final state. Physics letters. B, 718 (4/5), 1208-1228 doi:10.1016/j.physletb.2012.11.063.
@article{article, year = {2013}, pages = {1208-1228}, DOI = {10.1016/j.physletb.2012.11.063}, keywords = {CMS, physics, Kaluza–Klein, graviton}, journal = {Physics letters. B}, doi = {10.1016/j.physletb.2012.11.063}, volume = {718}, number = {4/5}, issn = {0370-2693}, title = {Search for a narrow, spin-2 resonance decaying to a pair of Z bosons in the q q-bar l+l- final state}, keyword = {CMS, physics, Kaluza–Klein, graviton} }

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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