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Searches for new physics using the tt¯ invariant mass distribution 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.
Searches for new physics using the tt¯ invariant mass distribution in pp collisions at √s=8  TeV // Physical Review Letters, 111 (2013), 211804-1 doi:10.1103/PhysRevLett.111.211804 (međunarodna recenzija, članak, znanstveni)


Naslov
Searches for new physics using the tt¯ invariant mass distribution in pp collisions at √s=8  TeV
(Searches for new physics using the tt¯ invariant mass distribution 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 ; ; Kadija, Krešo ; Luetić, Jelena ; Mekterović, Darko ; Morović, Srećko ; Tikvica, Lucija ; ... ; ... ; Đurić, Senka ; ... ; Swanson, J.

Izvornik
Physical Review Letters (0031-9007) 111 (2013); 211804-1

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

Ključne riječi
LHC. CMS; new physics; tt-bar

Sažetak
Searches for anomalous top quark-antiquark production are presented, based on pp collisions at √s=8  TeV. The data, corresponding to an integrated luminosity of 19.7  fb−1, were collected with the CMS detector at the LHC. The observed tt¯ invariant mass spectrum is found to be compatible with the standard model prediction. Limits on the production cross section times branching fraction probe, for the first time, a region of parameter space for certain models of new physics not yet constrained by precision measurements.

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

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


Citati