A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Studies of J/ψ production at forward rapidity in Pb–Pb collisions at √sNN = 5.02 TeV (2020)

ALICE collaboration (2020). Studies of J/ψ production at forward rapidity in Pb–Pb collisions at √sNN = 5.02 TeV. Journal of High Energy Physics, 2020 (2), 41. DOI: 10.1007/JHEP02(2020)041

JYU-tekijät tai -toimittajat

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: ALICE collaboration

Lehti tai sarja: Journal of High Energy Physics

ISSN: 1126-6708

eISSN: 1029-8479

Julkaisuvuosi: 2020

Volyymi: 2020

Lehden numero: 2

Artikkelinumero: 41

Kustantaja: Springer

Julkaisumaa: Saksa

Julkaisun kieli: englanti

DOI: https://doi.org/10.1007/JHEP02(2020)041

Avoin saatavuus: Open access -julkaisukanavassa ilmestynyt julkaisu

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/67897

Rinnakkaistallenteen verkko-osoite (pre-print): https://arxiv.org/abs/1909.03158

Tiivistelmä

The inclusive J/ψ production in Pb–Pb collisions at the center-of-mass energy per nucleon pair √sNN = 5.02TeV, measured with the ALICE detector at the CERN LHC, is reported. The J/ψ meson is reconstructed via the dimuon decay channel at forward rapidity (2.5 < y < 4) down to zero transverse momentum. The suppression of the J/ψ yield in Pb–Pb collisions with respect to binary-scaled pp collisions is quantified by the nuclear modification factor (RAA). The RAA at √sNN = 5.02 TeV is presented and compared with previous measurements at √sNN = 2.76 TeV as a function of the centrality of the collision, and of the J/ψ transverse momentum and rapidity. The inclusive J/ψ RAA shows a suppression increasing toward higher transverse momentum, with a steeper dependence for central collisions. The modification of the J/ψ average transverse momentum and average squared transverse momentum is also studied. Comparisons with the results of models based on a transport equation and on statistical hadronization are carried out.

YSO-asiasanat: hiukkasfysiikka

Vapaat asiasanat: Hadron-Hadron scattering (experiments)

Liittyvät organisaatiot

OKM-raportointi: Kyllä

Raportointivuosi: 2020

Alustava JUFO-taso: 2