PHENIX highlights: Recent results from PHENIX

被引:0
|
作者
Shimomura, Maya [1 ,2 ]
机构
[1] Nara Womens Univ, Dept Math & Phys Sci, Nara, Japan
[2] RIKEN Nishina Ctr, Wako, Saitama, Japan
关键词
D O I
10.1051/epjconf/202531601006
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The Relativistic Heavy Ion Collider (RHIC) PHENIX experiment has provided new insights into the behavior of quark-gluon plasma (QGP) under extreme conditions. While PHENIX concluded data collection in 2016, the collaboration remains actively engaged in analyzing the rich dataset yielding the following three important results recently. (1) Heavy flavor (HF) with charm and bottom quark separation indicates a clear mass dependence observed in central collisions. Additionally, forward rapidity J/psi and v(2) measurements show a result consistent with zero, in contrast to LHC findings. (2) Precise direct photon yields obtained via large statistical datasets, spanning a wide range of transverse momentum (p(T)) and centrality bins have the scaling behavior across various large systems, and non-prompt direct photon results reveal temperature (T-eff) dependence on p(T). (3) Charged hadron production was examined in collision systems of varying sizes, revealing that R-AA is primarily dependent on the overlap volume (N-part). Moreover, R-dAu obtained by experimental N-coll suggests the clear yield suppression in central collisions.
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页数:6
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