عنوان

Measurement of the (anti-)3He elliptic flow in Pb-Pb collisions at sNN=5.02TeV

شماره

LA1tg4z3n0

عنوان اصلي

Measurement of the (anti-)3He elliptic flow in Pb-Pb collisions at sNN=5.02TeV

نام عام مواد

[Article]

نام نخستين پديدآور

Acharya, SAdamová, DAdhya, SPAdler, AAdolfsson, JAggarwal, MMAglieri Rinella, GAgnello, MAgrawal, NAhammed, ZAhmad, SAhn, SUAkindinov, AAl-Turany, MAlam, SNAlbuquerque, DSDAleksandrov, DAlessandro, BAlfanda, HMAlfaro Molina, RAli, BAli, YAlici, AAlkin, AAlme, JAlt, Tet al.

متن يادداشت

© 2020 European Organization for Nuclear Research The elliptic flow (v2) of (anti-)3He is measured in Pb-Pb collisions at sNN=5.02TeV in the transverse-momentum (pT) range of 2-6 GeV/c for the centrality classes 0-20%, 20-40%, and 40-60% using the event-plane method. This measurement is compared to that of pions, kaons, and protons at the same center-of-mass energy. A clear mass ordering is observed at low pT, as expected from relativistic hydrodynamics. The violation of the scaling of v2 with the number of constituent quarks at low pT, already observed for identified hadrons and deuterons at LHC energies, is confirmed also for (anti-)3He. The elliptic flow of (anti-)3He is underestimated by the Blast-Wave model and overestimated by a simple coalescence approach based on nucleon scaling. The elliptic flow of (anti-)3He measured in the centrality classes 0-20% and 20-40% is well described by a more sophisticated coalescence model where the phase-space distributions of protons and neutrons are generated using the iEBE-VISHNU hybrid model with AMPT initial conditions.

تاريخ نشر

2020

عنوان

Lawrence Berkeley National Laboratory

نام الکترونيکي

نوع ماده

[Article]

کد کاربرگه

278945

سطح دسترسي

a

تكميل شده

Y