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Measurement of the production cross section for Zgamma->nunu- bargamma in pp collisions at sqrt(s) = 7 TeV and limits on ZZgamma and Zgammagamma triple gauge boson couplings triple gauge boson couplings


Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Measurement of the production cross section for Zgamma->nunu- bargamma in pp collisions at sqrt(s) = 7 TeV and limits on ZZgamma and Zgammagamma triple gauge boson couplings triple gauge boson couplings // Journal of high energy physics, 13 (2013), 10; 164-1 doi:10.1007/JHEP10(2013)164 (međunarodna recenzija, članak, znanstveni)


Naslov
Measurement of the production cross section for Zgamma->nunu- bargamma in pp collisions at sqrt(s) = 7 TeV and limits on ZZgamma and Zgammagamma triple gauge boson couplings triple gauge boson couplings
(Measurement of the production cross section for Zgamma->nunu- bargamma in pp collisions at sqrt(s) = 7 TeV and limits on ZZgamma and Zgammagamma triple gauge boson couplings)

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 ; Mekterović, Darko ; Morović, Srećko ; Tikvica, Lucija ; ... ; Swanson, J.

Izvornik
Journal of high energy physics (1029-8479) 13 (2013), 10; 164-1

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

Ključne riječi
Hadron-Hadron Scattering

Sažetak
A measurement of the Z gamma to nu nu-bar gamma cross section in pp collisions at sqrt(s) = 7 TeV is presented, using data corresponding to an integrated luminosity of 5.0 inverse femtobarns collected with the CMS detector. This measurement is based on the observation of events with an imbalance of transverse energy in excess of 130 GeV and a single photon in the absolute pseudorapidity range abs(eta) < 1.4 with transverse energy above 145 GeV. The Z gamma to nu nu-bar gamma production cross section is measured to be 21.1 +/- 4.2 (stat.) +/- 4.3 (syst.) +/- 0.5 (lum.) fb, which agrees with the standard model prediction of 21.9 +/- 1.1 fb. The results are combined with the CMS measurement of Z gamma production in the l+ l- gamma final state (where l is an electron or a muon) to yield the most stringent limits to date on triple gauge boson couplings: abs(h[3, Z]) < 2.7E-3, abs(h[4, Z]) < 1.3E-5 for Z Z gamma and abs(h[3, gamma]) < 2.9E- 3, abs(h[4, gamma]) < 1.5E-5 for Z gamma gamma 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,
Sveučilište u Splitu

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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