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Pregled bibliografske jedinice broj: 1042652

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


(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 (međunarodna recenzija, članak, znanstveni)


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

Autori
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

Kolaboracija
CMS Collaboration

Izvornik
The Journal of high energy physics (1126-6708) 10 (2019); 139, 35

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

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

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


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

Citiraj ovu publikaciju

(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 (međunarodna recenzija, članak, znanstveni)
(CMS Collaboration) (CMS Collaboration) Sirunyan, A., ..., Antunović, Ž., Brigljević, V., Ceci, S., Ferenček, D., Giljanović, D., Godinović, N., Kadija, K. & Kovač, M. (2019) 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, 139, 35 doi:10.1007/JHEP10(2019)139.
@article{article, year = {2019}, pages = {35}, DOI = {10.1007/JHEP10(2019)139}, chapter = {139}, keywords = {High energy physics, Experimental particle physics, LHC, CMS, Particle Physics Experiments, Hadron-Hadron scattering (experiments), Supersymmetry, Higgs physics, Beyond Standard Model, Photon production}, journal = {The Journal of high energy physics}, doi = {10.1007/JHEP10(2019)139}, volume = {10}, issn = {1126-6708}, title = {Search for dark photons in decays of Higgs bosons produced in association with Z bosons in proton-proton collisions at s√ = 13 TeV}, keyword = {High energy physics, Experimental particle physics, LHC, CMS, Particle Physics Experiments, Hadron-Hadron scattering (experiments), Supersymmetry, Higgs physics, Beyond Standard Model, Photon production}, chapternumber = {139} }

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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