Evidence of b-jet quenching in PbPb collisions at sqrt(s[NN]) = 2.76 TeV

Khachatryan, Serguei; ...; Ferenček, Dinko; Đurić, Senka; Godinović, Nikola; Lelas, Damir; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko; Brigljević, Vuko; Kadija, Krešo; Luetić, Jelena; Mekterović, Darko; Morović, Srećko; Tikvica, Lucija; Smith, Wesley

doi:10.1103/PhysRevLett.113.132301

Pregled bibliografske jedinice broj: 814856

Evidence of b-jet quenching in PbPb collisions at sqrt(s[NN]) = 2.76 TeV

Khachatryan, Serguei; ...; Ferenček, Dinko; Đurić, Senka; Godinović, Nikola; Lelas, Damir; Polić, Dunja; Puljak, Ivica; Antunović, Željko; Kovač, Marko et al.

Evidence of b-jet quenching in PbPb collisions at sqrt(s[NN]) = 2.76 TeV // Physical Review Letters, 113 (2014), 13; 132301-1 doi:10.1103/PhysRevLett.113.132301 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 814856 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Evidence of b-jet quenching in PbPb collisions at sqrt(s[NN]) = 2.76 TeV

Autori
Khachatryan, Serguei ; ... ; Ferenček, Dinko ; Đurić, Senka ; Godinović, Nikola ; Lelas, Damir ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Kadija, Krešo ; Luetić, Jelena ; Mekterović, Darko ; Morović, Srećko ; Tikvica, Lucija ; Smith, Wesley

Izvornik
Physical Review Letters (0031-9007) 113 (2014), 13; 132301-1

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

Ključne riječi
high energy physics ; experimental particle physics ; LHC ; CMS ; standard model

Sažetak
The production of jets associated to bottom quarks is measured for the first time in PbPb collisions at a center-of- mass energy of 2.76 TeV per nucleon pair. Jet spectra are reported in the transverse momentum (pt) range of 80-250 GeV, and within pseudorapidity abs(eta < 2). The nuclear modification factor (R[AA]) calculated from these spectra shows a strong suppression in the b-jet yield in PbPb collisions relative to the yield observed in pp collisions at the same energy. The suppression persists to the largest values of pt studied, and is centrality dependent. The R[AA] is about 0.4 in the most central events, similar to previous observations for inclusive jets. This implies that jet quenching does not have a strong dependence on parton mass and flavor in the jet pt range studied.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA

Projekti:
HRZZ-IS-09.01/346 - Potraga za novim standardnim modelom elementarnih čestica na LHC-u: od preciznih mjerenja elektroslabih procesa do direktnih potraga za novom fizikom
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)
HRZZ-IP-2013-11-7118 - Mjerenje svojstava Higgsovog bozona i potraga za novom fizikom detektorom CMS (HIGGSPRO) (Puljak, Ivica, HRZZ - 2013-11) ( CroRIS)

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

Profili:

Senka Đurić (autor)