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; Puljak, Ivica; Antunović, Željko; Dželalija, Mile; ...; Brigljević, Vuko; Đurić, Senka; Kadija, Krešo; Morović, Srećko; ...; Weinberg, Marc

doi:10.1016/j.physletb.2010.11.058

Pregled bibliografske jedinice broj: 499829

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)

CROSBI ID: 499829 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

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

Projekti:
023-0982887-3064 - Potraga za Higgsovim bozonom i novom fizikom detektorom CMS (Puljak, Ivica, MZOS ) ( CroRIS)
098-0982887-2878 - Eksperimentalna fizika na LHC energijama (Kadija, Krešo, MZOS ) ( CroRIS)

Ustanove:
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb

Profili:

Damir Lelas (autor)