Measurements of tt-bar cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at sqrt(s) = 13 TeV

Sirunyan, Albert; ...; Mesić, Benjamin; Godinović, Nikola; Puljak, Ivica; Starodumov, Andrey; Lelas, Damir; Kovač, Marko; Đurić, Senka; Ferenček, Dinko; Brigljević, Vuko; Luetić, Jelena; Antunović, Željko; Kadija, Krešo; Šuša, Tatjana; ...; Woods, Nate

doi:10.1016/j.physletb.2017.11.043

Pregled bibliografske jedinice broj: 919976

Measurements of tt-bar cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at sqrt(s) = 13 TeV

(CMS Collaboration) Sirunyan, Albert; ...; Mesić, Benjamin; Godinović, Nikola; Puljak, Ivica; Starodumov, Andrey; Lelas, Damir; Kovač, Marko; Đurić, Senka; Ferenček, Dinko et al.

Measurements of tt-bar cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at sqrt(s) = 13 TeV // Physics letters. B, 776 (2018), 355-378 doi:10.1016/j.physletb.2017.11.043 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 919976 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Measurements of tt-bar cross sections in association with b jets and inclusive jets and their ratio using dilepton final states in pp collisions at sqrt(s) = 13 TeV

Autori
Sirunyan, Albert ; ... ; Mesić, Benjamin ; Godinović, Nikola ; Puljak, Ivica ; Starodumov, Andrey ; Lelas, Damir ; Kovač, Marko ; Đurić, Senka ; Ferenček, Dinko ; Brigljević, Vuko ; Luetić, Jelena ; Antunović, Željko ; Kadija, Krešo ; Šuša, Tatjana ; ... ; Woods, Nate

Kolaboracija
CMS Collaboration

Izvornik
Physics letters. B (0370-2693) 776 (2018); 355-378

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

Ključne riječi
High energy physics ; Experimental particle physics ; LHC ; CMS ; Standard Model

Sažetak
The cross sections for the production of tt-bar bb-bar and tt-bar jj events and their ratio sigma[tt-bar bb-bar]/sigma[tt-bar jj] are measured using data corresponding to an integrated luminosity of 2.3 inverse femtobarns collected in pp collisions at sqrt(s) = 13 TeV with the CMS detector at the LHC. Events with two leptons (e or mu) and at least four reconstructed jets, including at least two identified as b quark jets, in the final state are selected. In the full phase space, the measured ratio is 0.022 +/- 0.003 (stat) +/- 0.006 (syst), the cross section sigma[tt-bar bb-bar] is 4.0 +/- 0.6 (stat) +/- 1.3 (syst) pb and sigma[tt-bar jj] is 184 +/- 6 (stat) +/- 33 (syst) pb. The measurements are compared with the standard model expectations obtained from a POWHEG simulation at next-to-leading-order interfaced with PYTHIA.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA

Ustanove:
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Split

Profili:

Senka Đurić (autor)