Measurement of Z0-boson production at large rapidities in Pb-Pb collisions at √sNN=5.02 TeV

Acharya, S.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ...; Lončar, Petra; ...; Mudnić, Eugen; ...; Planinić, Mirko; ...; Poljak, Nikola; ...; Simatović, Goran; ...; Utrobičić, Antonija; ...; Vicković, Linda; ...; Zou, S.

doi:10.1016/j.physletb.2018.03.010

Pregled bibliografske jedinice broj: 959914

Measurement of Z0-boson production at large rapidities in Pb-Pb collisions at √sNN=5.02 TeV

(ALICE Collaboration) Acharya, S.; ...; Antičić, Tome; ...; Erhardt, Filip; ...; Gotovac, Sven; ...; Jerčić, Marko; ... et al.

Measurement of Z0-boson production at large rapidities in Pb-Pb collisions at √sNN=5.02 TeV // Physics letters. B, 780 (2018), 372-383 doi:10.1016/j.physletb.2018.03.010 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 959914 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Measurement of Z0-boson production at large rapidities in Pb-Pb collisions at √sNN=5.02 TeV

Autori
Acharya, S. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Jerčić, Marko ; ... ; Lončar, Petra ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Simatović, Goran ; ... ; Utrobičić, Antonija ; ... ; Vicković, Linda ; ... ; Zou, S.

Kolaboracija
ALICE Collaboration

Izvornik
Physics letters. B (0370-2693) 780 (2018); 372-383

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

Ključne riječi
Z-boson ; PbPb ; 5.02 TeV ; Large rapidity

Sažetak
The production of Z0 bosons at large rapidities in Pb-Pb collisions at √sNN = 5.02 TeV is reported. Z0 candidates are reconstructed in the dimuon decay channel (Z0→μ+μ−), based on muons selected with pseudo-rapidity −4.0<η<−2.5 and pT>20 GeV/c. The invariant yield and the nuclear modification factor, RAA, are presented as a function of rapidity and collision centrality. The value of RAA for the 0-20% central Pb-Pb collisions is 0.67±0.11(stat.)±0.03(syst.) ±0.06(corr. syst.), exhibiting a deviation of 2.6σ from unity. The results are well-described by calculations that include nuclear modifications of the parton distribution functions, while the predictions using vacuum PDFs deviate from data by 2.3σ in the 0-90% centrality class and by 3σ in the 0-20% central collisions.

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)