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Pregled bibliografske jedinice broj: 738348

Search for Flavor-Changing Neutral Currents in Top- Quark Decays t→Zq 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.
Search for Flavor-Changing Neutral Currents in Top- Quark Decays t→Zq in pp Collisions at √s=8  TeV // Physical Review Letters, 112 (2014), 171802-1 doi:10.1103/PhysRevLett.112.171802 (međunarodna recenzija, članak, znanstveni)


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Naslov
Search for Flavor-Changing Neutral Currents in Top- Quark Decays t→Zq 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); 171802-1

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

Ključne riječi
CMS; pp; 8 TeV; FCNC; Top-Quark

Sažetak
A search for flavor-changing neutral currents in top-quark decays t→Zq is performed in events produced from the decay chain tt¯→Zq+Wb, where both vector bosons decay leptonically, producing a final state with three leptons (electrons or muons). A data set collected with the CMS detector at the LHC is used, corresponding to an integrated luminosity of 19.7  fb−1 of proton- proton collisions at a center-of-mass energy of 8 TeV. No excess is seen in the observed number of events relative to the standard model prediction ; thus, no evidence for flavor-changing neutral currents in top-quark decays is found. A combination with a previous search at 7 TeV excludes a t→Zq branching fraction greater than 0.05% at the 95% confidence level.

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.
Search for Flavor-Changing Neutral Currents in Top- Quark Decays t→Zq in pp Collisions at √s=8  TeV // Physical Review Letters, 112 (2014), 171802-1 doi:10.1103/PhysRevLett.112.171802 (međunarodna recenzija, članak, znanstveni)
Chatrchyan, S., ..., Godinović, N., Lelas, D., Pleština, R., Polić, D., Puljak, I., Antunović, Ž., Kovač, M. & Brigljević, V. (2014) Search for Flavor-Changing Neutral Currents in Top- Quark Decays t→Zq in pp Collisions at √s=8  TeV. Physical Review Letters, 112, 171802-1 doi:10.1103/PhysRevLett.112.171802.
@article{article, year = {2014}, pages = {171802-1-171802-16}, DOI = {10.1103/PhysRevLett.112.171802}, keywords = {CMS, pp, 8 TeV, FCNC, Top-Quark}, journal = {Physical Review Letters}, doi = {10.1103/PhysRevLett.112.171802}, volume = {112}, issn = {0031-9007}, title = {Search for Flavor-Changing Neutral Currents in Top- Quark Decays t→Zq in pp Collisions at √s=8  TeV}, keyword = {CMS, pp, 8 TeV, FCNC, Top-Quark} }

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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