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Pregled bibliografske jedinice broj: 738350

Measurement of the properties of a Higgs boson in the four-lepton final state


(CMS Collaboration) Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Measurement of the properties of a Higgs boson in the four-lepton final state // Physical review. D, Particles, fields, gravitation, and cosmology, 89 (2014), 092007, 45 doi:10.1103/PhysRevD.89.092007 (međunarodna recenzija, članak, znanstveni)


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Naslov
Measurement of the properties of a Higgs boson in the four-lepton final state

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.

Kolaboracija
CMS Collaboration

Izvornik
Physical review. D, Particles, fields, gravitation, and cosmology (1550-7998) 89 (2014); 092007, 45

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

Ključne riječi
CMS ; pp ; Higgs ; Properties

Sažetak
The properties of a Higgs boson candidate are measured in the H→ZZ→4ℓ decay channel, with ℓ=e, μ, using data from pp collisions corresponding to an integrated luminosity of 5.1 fb−1 at the center-of-mass energy of √s=7 TeV and 19.7 fb−1 at √s=8 TeV, recorded with the CMS detector at the LHC. The new boson is observed as a narrow resonance with a local significance of 6.8 standard deviations, a measured mass of 125.6±0.4(stat)±0.2(syst) GeV, and a total width ≤3.4 GeV at the 95% confidence level. The production cross section of the new boson times its branching fraction to four leptons is measured to be 0.93+0.26−0.23(stat)+0.13−0.09(syst) times that predicted by the standard model. Its spin- parity properties are found to be consistent with the expectations for the standard-model Higgs boson. The hypotheses of a pseudoscalar and all tested spin-1 boson hypotheses are excluded at the 99% confidence level or higher. All tested spin-2 boson hypotheses are excluded at the 95% confidence level or higher.

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

(CMS Collaboration) Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Measurement of the properties of a Higgs boson in the four-lepton final state // Physical review. D, Particles, fields, gravitation, and cosmology, 89 (2014), 092007, 45 doi:10.1103/PhysRevD.89.092007 (međunarodna recenzija, članak, znanstveni)
(CMS Collaboration) (CMS Collaboration) Chatrchyan, S., ..., Godinović, N., Lelas, D., Pleština, R., Polić, D., Puljak, I., Antunović, Ž., Kovač, M. & Brigljević, V. (2014) Measurement of the properties of a Higgs boson in the four-lepton final state. Physical review. D, Particles, fields, gravitation, and cosmology, 89, 092007, 45 doi:10.1103/PhysRevD.89.092007.
@article{article, year = {2014}, pages = {45}, DOI = {10.1103/PhysRevD.89.092007}, chapter = {092007}, keywords = {CMS, pp, Higgs, Properties}, journal = {Physical review. D, Particles, fields, gravitation, and cosmology}, doi = {10.1103/PhysRevD.89.092007}, volume = {89}, issn = {1550-7998}, title = {Measurement of the properties of a Higgs boson in the four-lepton final state}, keyword = {CMS, pp, Higgs, Properties}, chapternumber = {092007} }

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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