Measurement of the production of high-p_T electrons from heavy-flavour hadron decays in Pb-Pb collisions at √sNN = 2.76 TeV

Adam, J.; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Simatović, Goran; ...; Utrobičić, Antonija; ...; Vicković, Linda; ...; Zmeskal, J.

doi:10.1016/j.physletb.2017.05.060

Pregled bibliografske jedinice broj: 916278

Measurement of the production of high-p_T electrons from heavy-flavour hadron decays in Pb-Pb collisions at √sNN = 2.76 TeV

(ALICE Collaboration) Adam, J.; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Mudnić, Eugen; ...; Planinić, Mirko et al.

Measurement of the production of high-p_T electrons from heavy-flavour hadron decays in Pb-Pb collisions at √sNN = 2.76 TeV // Physics letters. B, 771 (2017), 467-481 doi:10.1016/j.physletb.2017.05.060 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 916278 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Measurement of the production of high-p_T electrons from heavy-flavour hadron decays in Pb-Pb collisions at √sNN = 2.76 TeV

Autori
Adam, J. ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Simatović, Goran ; ... ; Utrobičić, Antonija ; ... ; Vicković, Linda ; ... ; Zmeskal, J.

Kolaboracija
ALICE Collaboration

Izvornik
Physics letters. B (0370-2693) 771 (2017); 467-481

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

Ključne riječi
heavy-flavour, Pb-Pb, 2.76TeV

Sažetak
Electrons from heavy-flavour hadron decays (charm and beauty) were measured with the ALICE detector in Pb–Pb collisions at a centre-of- mass of energy √sNN = 2.76 TeV. The transverse momentum (pT) differential production yields at mid-rapidity were used to calculate the nuclear modification factor RAA in the interval 3 < pT < 18 GeV/c. The RAA shows a strong suppression compared to binary scaling of pp collisions at the same energy (up to a factor of 4) in the 10% most central Pb–Pb collisions. There is a centrality trend of suppression, and a weaker suppression (down to a factor of 2) in semi- peripheral (50–80%) collisions is observed. The suppression of electrons in this broad pT interval indicates that both charm and beauty quarks lose energy when they traverse the hot medium formed in Pb–Pb collisions at LHC.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

POVEZANOST RADA

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

Profili:

Filip Erhardt (autor)