学術雑誌論文 Event-shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at sNN−−−√=2.76 TeV

ALICE Collaboration  ,  Chujo, Tatsuya  ,  Esumi, ShinIchi  ,  Miake, Yasuo

93 ( 3 )  , p.034916 , 2016-03 , American Physical Society
ISSN:2469-9985
NII書誌ID(NCID):AA00773613
内容記述
We report on results obtained with the event-shape engineering technique applied to Pb-Pb collisions at sNN−−−√=2.76 TeV. By selecting events in the same centrality interval, but with very different average flow, different initial-state conditions can be studied. We find the effect of the event-shape selection on the elliptic flow coefficient v2 to be almost independent of transverse momentum pT, which is as expected if this effect is attributable to fluctuations in the initial geometry of the system. Charged-hadron, -pion, -kaon, and -proton transverse momentum distributions are found to be harder in events with higher-than-average elliptic flow, indicating an interplay between radial and elliptic flow.
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