Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s= 13 TeV

Sirunyan, Albert M; ...; Antunović, Željko; Brigljević, Vuko; Ferenček, Dinko; Giljanović, Duje; Godinović, Nikola; Kovač, Marko; Lelas, Damir; Majumder, Devdatta; Puljak, Ivica; Roguljić, Matej; Starodumov, Andrey; Đurić, Senka; Šuša, Tatjana; Šćulac, Toni; ...; Vetens, Wren

doi:10.1016/j.physletb.2020.135988

Pregled bibliografske jedinice broj: 1108580

Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s= 13 TeV

(CMS Collaboration) Sirunyan, Albert M; ...; Antunović, Željko; Brigljević, Vuko; Ferenček, Dinko; Giljanović, Duje; Godinović, Nikola; Kovač, Marko; Lelas, Damir; Majumder, Devdatta et al.

Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s= 13 TeV // Physics letters. B, 811 (2020), 135988, 40 doi:10.1016/j.physletb.2020.135988 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 1108580 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s= 13 TeV
(Observation of electroweak production of Wγ with two jets in proton-proton collisions at √s= 13 TeV)

Autori
Sirunyan, Albert M ; ... ; Antunović, Željko ; Brigljević, Vuko ; Ferenček, Dinko ; Giljanović, Duje ; Godinović, Nikola ; Kovač, Marko ; Lelas, Damir ; Majumder, Devdatta ; Puljak, Ivica ; Roguljić, Matej ; Starodumov, Andrey ; Đurić, Senka ; Šuša, Tatjana ; Šćulac, Toni ; ... ; Vetens, Wren

Kolaboracija
CMS Collaboration

Izvornik
Physics letters. B (0370-2693) 811 (2020); 135988, 40

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

Ključne riječi
high energy physics ; experimental particle physics ; LHC ; CMS ; particle physics experiments ; physics ; vector boson scattering

Sažetak
A first observation is presented for the electroweak production of a W boson, a photon, and two jets in proton-proton collisions. The W boson decays are selected by requiring one identified electron or muon and an imbalance in transverse momentum. The two jets are required to have a high dijet mass and a large separation in pseudorapidity. The measurement is based on data collected with the CMS detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 35.9fb−1. The observed (expected) significance for this process is 4.9 (4.6) standard deviations. After combining with previously reported CMS results at 8 TeV, the observed (expected) significance is 5.3 (4.8) standard deviations. The cross section for the electroweak W gamma jj production in a restricted fiducial region is measured as 20.4 ± 4.5 fb and the total cross section for Wγ production in association with 2 jets in the same fiducial region is 108 ± 16 fb. All results are in good agreement with recent theoretical predictions. Constraints are placed on anomalous quartic gauge couplings in terms of dimension-8 effective field theory operators.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA

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

Profili:

Senka Đurić (autor)