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First measurement of the cross section for top-quark pair production in proton–proton collisions at sqrt(s) = 7 TeV


Khachatryan, Vardan; ...; Dragičević, M.; ....; ...; Godinović, Nikola; Lelas, Damir; Lelas, Karlo; Pleština, Roko; Polić, Dunja et al.
First measurement of the cross section for top-quark pair production in proton–proton collisions at sqrt(s) = 7 TeV // Physics letters. B, 695 (2011), 5; 424-443 doi:10.1016/j.physletb.2010.11.058 (međunarodna recenzija, članak, znanstveni)


Naslov
First measurement of the cross section for top-quark pair production in proton–proton collisions at sqrt(s) = 7 TeV

Autori
Khachatryan, Vardan ; ... ; Dragičević, M. ; .... ; ... ; Godinović, Nikola ; Lelas, Damir ; Lelas, Karlo ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Dželalija, Mile ; ... ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Morović, Srećko ; ... ; Weinberg, Marc

Izvornik
Physics letters. B (0370-2693) 695 (2011), 5; 424-443

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

Ključne riječi
CMS; LHC; Physics; top quark; Cross section

Sažetak
The first measurement of the cross section for top-quark pair production in pp collisions at the Large Hadron Collider at center-of-mass energy View the MathML source has been performed using a data sample corresponding to an integrated luminosity of 3.1±0.3 pb−1 recorded by the CMS detector. This result utilizes the final state with two isolated, highly energetic charged leptons, large missing transverse energy, and two or more jets. Backgrounds from Drell–Yan and non-W/Z boson production are estimated from data. Eleven events are observed in the data with 2.1±1.0 events expected from background. The measured cross section is 194±72(stat.)±24(syst.)±21(lumi.) pb, consistent with next-to-leading order predictions.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
CMS Collaboration : CERN Švicarska



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


Citati