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Pregled bibliografske jedinice broj: 738366

Observation of the Associated Production of a Single Top Quark and a W Boson in pp Collisions at √s=8  TeV


Chatrchyan, S.; ...; Godinović, Nikola; Lelas, Damir; Pleština, Roko; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko et al.
Observation of the Associated Production of a Single Top Quark and a W Boson in pp Collisions at √s=8  TeV // Physical Review Letters, 112 (2014), 231802-1 doi:10.1103/PhysRevLett.112.231802 (međunarodna recenzija, članak, znanstveni)


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Naslov
Observation of the Associated Production of a Single Top Quark and a W Boson in pp Collisions at √s=8  TeV
(Single Top Quark and a W Boson in pp Collisions at √s=8  TeV)

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
Physical Review Letters (0031-9007) 112 (2014); 231802-1

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

Ključne riječi
CMS; Associated Production; Top Quark; W Boson; pp

Sažetak
The first observation of the associated production of a single top quark and a W boson is presented. The analysis is based on a data set corresponding to an integrated luminosity of 12.2  fb−1 of proton-proton collisions at √s=8   TeV recorded by the CMS experiment at the LHC. Events with two leptons and a jet originating from a b quark are selected. A multivariate analysis based on kinematic and topological properties is used to separate the signal from the dominant tt¯ background. An excess consistent with the signal hypothesis is observed, with a significance which corresponds to 6.1 standard deviations above a background-only hypothesis. The measured production cross section is 23.4±5.4  pb, in agreement with the standard model prediction.

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.
Observation of the Associated Production of a Single Top Quark and a W Boson in pp Collisions at √s=8  TeV // Physical Review Letters, 112 (2014), 231802-1 doi:10.1103/PhysRevLett.112.231802 (međunarodna recenzija, članak, znanstveni)
Chatrchyan, S., ..., Godinović, N., Lelas, D., Pleština, R., Polić, D., Puljak, I., Antunović, Ž., Kovač, M. & Brigljević, V. (2014) Observation of the Associated Production of a Single Top Quark and a W Boson in pp Collisions at √s=8  TeV. Physical Review Letters, 112, 231802-1 doi:10.1103/PhysRevLett.112.231802.
@article{article, year = {2014}, pages = {231802-1-231802-16}, DOI = {10.1103/PhysRevLett.112.231802}, keywords = {CMS, Associated Production, Top Quark, W Boson, pp}, journal = {Physical Review Letters}, doi = {10.1103/PhysRevLett.112.231802}, volume = {112}, issn = {0031-9007}, title = {Single Top Quark and a W Boson in pp Collisions at √s=8  TeV}, keyword = {CMS, Associated Production, Top Quark, W Boson, pp} }

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
  • MEDLINE


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