A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Elliptic and triangular flow of (anti)deuterons in Pb-Pb collisions root √sNN = 5.02 TeV (2020)


ALICE Collaboration (2020). Elliptic and triangular flow of (anti)deuterons in Pb-Pb collisions root √sNN = 5.02 TeV . Physical Review C, 102 (5), 055203. DOI: 10.1103/PhysRevC.102.055203


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: ALICE Collaboration

Lehti tai sarja: Physical Review C

ISSN: 2469-9985

eISSN: 2469-9993

Julkaisuvuosi: 2020

Volyymi: 102

Lehden numero: 5

Artikkelinumero: 055203

Kustantaja: American Physical Society

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1103/PhysRevC.102.055203

Avoin saatavuus: Hybridijulkaisukanavassa ilmestynyt avoin julkaisu

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/73931

Rinnakkaistallenteen verkko-osoite (pre-print): https://arxiv.org/abs/2005.14639


Tiivistelmä

The measurements of the (anti)deuteron elliptic flow (v(2)) and the first measurements of triangular flow (v(3)) in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon collision root √sNN = 5.02 TeV are presented. A mass ordering at low transverse momentum (p(T)) is observed when comparing these measurements with those of other identified hadrons, as expected from relativistic hydrodynamics. The measured (anti)deuteron v(2) lies between the predictions from the simple coalescence and blast-wave models, which provide a good description of the data only for more peripheral and for more central collisions, respectively. The mass number scaling, which is violated for v(2), is approximately valid for the (anti)deuterons v(3). The measured v(2) and v(3) are also compared with the predictions from a coalescence approach with phase-space distributions of nucleons generated by IEBE-VISHNU with AMPT initial conditions coupled with URQMD, and from a dynamical model based on relativistic hydrodynamics coupled to the hadronic afterburner SMASH. The model predictions are consistent with the data within the uncertainties in midcentral collisions, while a deviation is observed in the most central collisions.


YSO-asiasanat: hiukkasfysiikka; ydinfysiikka


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Viimeisin päivitys 2021-22-02 klo 12:58