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Studies of inclusive four-jet production with two b-tagged jets in proton-proton collisions at 7 TeV (CROSBI ID 239225)

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(CMS Collaboration) Khachatryan, Vardan ; ... ; Godinović, Nikola ; Lelas, Damir ; Polić, Dunja ; Puljak, Ivica ; ... ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko et al. Studies of inclusive four-jet production with two b-tagged jets in proton-proton collisions at 7 TeV // Physical review. D, 94 (2016), 112005, 25. doi: 10.1103/PhysRevD.94.112005

Podaci o odgovornosti

Khachatryan, Vardan ; ... ; Godinović, Nikola ; Lelas, Damir ; Polić, Dunja ; Puljak, Ivica ; ... ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Kadija, Krešo ; Luetić, Jelena ; Mićanović, Saša ; Sudić, Lucija ; ... ; Morović, Srećko ; ... ; Ferenček, Dinko ; ... ; Đurić, Senka ; ... ; Woods, Nate

CMS Collaboration

engleski

Studies of inclusive four-jet production with two b-tagged jets in proton-proton collisions at 7 TeV

Measurements are presented of the cross section for the production of at least four jets, of which at least two originate from b quarks, in proton-proton collisions. Data collected with the CMS detector at the LHC at a center-of- mass energy of 7 TeV are used, corresponding to an integrated luminosity of 3 inverse picobarns. The cross section is measured as a function of the jet transverse momentum for pt > 20 GeV, and of the jet pseudorapidity for abs(eta) < 2.4 (b jets), 4.7 (untagged jets). The correlations in azimuthal angle and pt between the jets are also studied. The inclusive cross section is measured to be sigma(pp to 2 b + 2 j + X) = 69 +/- 3 (stat) +/- 24 (syst) nb. The eta and pt distributions of the four jets and the correlations between them are well reproduced by event generators that combine perturbative QCD calculations at next-to-leading-order accuracy with contributions from parton showers and multiparton interactions.

High energy physics, Experimental particle physics, LHC, CMS, Standard Model

CMS Collaboration.

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Podaci o izdanju

94

2016.

112005

25

objavljeno

2470-0010

2470-0029

10.1103/PhysRevD.94.112005

Povezanost rada

Fizika

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