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Search for excited quarks in the γ + jet final state in proton–proton collisions at √s = 8 TeV


Khachatryan, V.; ...; Godinović, Nikola; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Search for excited quarks in the γ + jet final state in proton–proton collisions at √s = 8 TeV // Physics letters. B, 738 (2014), 274-293 doi:10.1016/j.physletb.2014.09.048 (međunarodna recenzija, članak, znanstveni)


Naslov
Search for excited quarks in the γ + jet final state in proton–proton collisions at √s = 8 TeV

Autori
Khachatryan, V. ; ... ; Godinović, Nikola ; Lelas, Damir ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Luetić, Jelena ; Mekterović, Darko ; Morović, Srećko ; Sudic, Lucija ; ... ; Woods, N.

Izvornik
Physics letters. B (0370-2693) 738 (2014); 274-293

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

Ključne riječi
CMS; Physics; Photon; Jet

Sažetak
A search for excited quarks decaying into the γ +jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7 fb−1 collected by the CMS experiment in proton– proton collisions at √s = 8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the γ + jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength ; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners.

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

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


Citati