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Pregled bibliografske jedinice broj: 670797

Study of exclusive two-photon production of W(+)W(-) in pp collisions at sqrt(s) = 7 TeV and constraints on anomalous quartic gauge couplings


Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Study of exclusive two-photon production of W(+)W(-) in pp collisions at sqrt(s) = 7 TeV and constraints on anomalous quartic gauge couplings // Journal of high energy physics, 1307 (2013), 116-1 doi:10.1007/JHEP07(2013)116 (međunarodna recenzija, članak, znanstveni)


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Naslov
Study of exclusive two-photon production of W(+)W(-) in pp collisions at sqrt(s) = 7 TeV and constraints on anomalous quartic gauge 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) 1307 (2013); 116-1

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

Ključne riječi
Hadron-Hadron Scattering

Sažetak
A search for exclusive or quasi-exclusive W(+)W(-) production by photon-photon interactions, pp to p(*)W(+)W(-)p(*), at sqrt(s) = 7 TeV is reported using data collected by the CMS detector with an integrated luminosity of 5.05 inverse femtobarns. Events are selected by requiring a mu(+/-)e(-/+) vertex with no additional associated charged tracks and dilepton transverse momentum pt(mu(+/-)e(-/+)) > 30 GeV. Two events passing all selection requirements are observed in the data, compared to a standard model expectation of 2.2 +/- 0.4 signal events with 0.84 +/- 0.15 background. The tail of the dilepton pt distribution is studied for deviations from the standard model. No events are observed with pt > 100 GeV. Model-independent upper limits are computed and compared to predictions involving anomalous quartic gauge couplings. The limits on the parameters a[W, (0, C)]/Lambda^2 with a dipole form factor and an energy cutoff Lambda(cutoff) = 500 GeV are of the order of 10E-4.

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.
Study of exclusive two-photon production of W(+)W(-) in pp collisions at sqrt(s) = 7 TeV and constraints on anomalous quartic gauge couplings // Journal of high energy physics, 1307 (2013), 116-1 doi:10.1007/JHEP07(2013)116 (međunarodna recenzija, članak, znanstveni)
Chatrchyan, S., ..., Godinović, N., Lelas, D., Pleština, R., Polić, D., Puljak, I., Antunović, Ž., Kovač, M. & Brigljević, V. (2013) Study of exclusive two-photon production of W(+)W(-) in pp collisions at sqrt(s) = 7 TeV and constraints on anomalous quartic gauge couplings. Journal of high energy physics, 1307, 116-1 doi:10.1007/JHEP07(2013)116.
@article{article, year = {2013}, pages = {116-1-116-43}, DOI = {10.1007/JHEP07(2013)116}, keywords = {Hadron-Hadron Scattering}, journal = {Journal of high energy physics}, doi = {10.1007/JHEP07(2013)116}, volume = {1307}, issn = {1029-8479}, title = {Study of exclusive two-photon production of W(+)W(-) in pp collisions at sqrt(s) = 7 TeV and constraints on anomalous quartic gauge couplings}, keyword = {Hadron-Hadron Scattering} }

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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