Beauty production in pp collisions at √s = 2.76 TeV measured via semi-electronic decays

Abelev, B. ...; Antičić, Tome; ...; Gotovac, Sven; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Simatović, Goran; ...; Šuša, Tatjana; ...; Vicković, Linda; ...; Zyzak, M.

doi:10.1016/j.physletb.2014.09.026

Pregled bibliografske jedinice broj: 738432

Beauty production in pp collisions at √s = 2.76 TeV measured via semi-electronic decays

Abelev, B. ...; Antičić, Tome; ...; Gotovac, Sven; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola et al.

Beauty production in pp collisions at √s = 2.76 TeV measured via semi-electronic decays // Physics letters. B, 738 (2014), 97-108 doi:10.1016/j.physletb.2014.09.026 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 738432 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Beauty production in pp collisions at √s = 2.76 TeV measured via semi-electronic decays

Autori
Abelev, B. ... ; Antičić, Tome ; ... ; Gotovac, Sven ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Simatović, Goran ; ... ; Šuša, Tatjana ; ... ; Vicković, Linda ; ... ; Zyzak, M.

Izvornik
Physics letters. B (0370-2693) 738 (2014); 97-108

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

Ključne riječi
LHC; ALICE experiment; pp collisions; Single electrons; Heavy-flavour production; Beauty production
(LHC; ALICE experiment; pp collisions; Single electrons; Heavy-flavour production; Beauty productio)

Sažetak
The ALICE Collaboration at the LHC reports measurement of the inclusive production cross section of electrons from semi-leptonic decays of beauty hadrons with rapidity |y| < 0.8 and transverse momentum 1 < pT < 10 GeV/c, in pp collisions at √s = 2.76 TeV. Electrons not originating from semi- electronic decay of beauty hadrons are suppressed using the impact parameter of the corresponding tracks. The production cross section of beauty decay electrons is compared to the result obtained with an alternative method which uses the distribution of the azimuthal angle between heavy-flavour decay electrons and charged hadrons. Perturbative QCD predictions agree with the measured cross section within the experimental and theoretical uncertainties. The integrated visible cross section, σb→e = 3.47 ± 0.40(stat) +1.12 −1.33(sys) ± 0.07(norm) μb, was extrapolated to full phase space using Fixed Order plus Next-to-Leading Log (FONLL) calculations to obtain the total bb production ¯ cross section, σbb¯ = 130 ± 15.1(stat) +42.1 −49.8(sys) +3.4 −3.1(extr) ± 2.5(norm) ± 4.4(BR) μb

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA

Projekti:
098-0982887-2878 - Eksperimentalna fizika na LHC energijama (Kadija, Krešo, MZOS ) ( CroRIS)
119-0982887-1006 - Istraživanje hadronskih sustava upotrebom relativističkih projektila (Planinić, Mirko, MZOS ) ( CroRIS)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Mirko Planinić (autor)