Nalazite se na CroRIS probnoj okolini. Ovdje evidentirani podaci neće biti pohranjeni u Informacijskom sustavu znanosti RH. Ako je ovo greška, CroRIS produkcijskoj okolini moguće je pristupi putem poveznice www.croris.hr
izvor podataka: crosbi

Search for dark photons in decays of Higgs bosons produced in association with Z bosons in proton-proton collisions at s√ = 13 TeV (CROSBI ID 273196)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

(CMS Collaboration) Sirunyan, Albert M ; ... ; Antunović, Željko ; Brigljević, Vuko ; Ceci, Saša ; Ferenček, Dinko ; Giljanović, Duje ; Godinović, Nikola ; Kadija, Krešo ; Kovač, Marko et al. Search for dark photons in decays of Higgs bosons produced in association with Z bosons in proton-proton collisions at s√ = 13 TeV // The Journal of high energy physics, 10 (2019), 139, 35. doi: 10.1007/JHEP10(2019)139

Podaci o odgovornosti

Sirunyan, Albert M ; ... ; Antunović, Željko ; Brigljević, Vuko ; Ceci, Saša ; Ferenček, Dinko ; Giljanović, Duje ; Godinović, Nikola ; Kadija, Krešo ; Kovač, Marko ; Lelas, Damir ; Mesić, Benjamin ; Puljak, Ivica ; Roguljić, Matej ; Starodumov, Andrey ; Đurić, Senka ; Šuša, Tatjana ; Šćulac, Toni ; ... ; Woods, Nathaniel

CMS Collaboration

engleski

Search for dark photons in decays of Higgs bosons produced in association with Z bosons in proton-proton collisions at s√ = 13 TeV

A search is presented for a Higgs boson that is produced in association with a Z boson and that decays to an undetected particle together with an isolated photon. The search is performed by the CMS Collaboration at the Large Hadron Collider using a data set corresponding to an integrated luminosity of 137 fb−1 recorded at a center-of-mass energy of 13 TeV. No significant excess of events above the expectation from the standard model background is found. The results are interpreted in the context of a theoretical model in which the undetected particle is a massless dark photon. An upper limit is set on the product of the cross section for associated Higgs and Z boson production and the branching fraction for such a Higgs boson decay, as a function of the Higgs boson mass. For a mass of 125 GeV, assuming the standard model production cross section, this corresponds to an observed (expected) upper limit on this branching fraction of 4.6 (3.6)% at 95% confidence level. These are the first limits on Higgs boson decays to final states that include an undetected massless dark photon.

High energy physics ; Experimental particle physics ; LHC ; CMS ; Particle Physics Experiments ; Hadron-Hadron scattering (experiments) ; Supersymmetry ; Higgs physics ; Beyond Standard Model ; Photon production

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

10

2019.

139

35

objavljeno

1126-6708

1029-8479

10.1007/JHEP10(2019)139

Povezanost rada

Fizika

Poveznice
Indeksiranost