U+U and Cu+Au results from PHENIX

29th Winter Workshop on Nuclear Dynamics

Iordanova, Aneta^1

University of California, Riverside, United States^1

关键词: Asymmetric system;    Collision geometry;    Collision systems;    Geometrical configurations;    Impact-parameter;    Particle production;    Scaling behavior;    Symmetric systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/458/1/012004/pdf
DOI  :  10.1088/1742-6596/458/1/012004

来源: IOP

【 摘 要 】

The flexibility of RHIC to collide different nuclei provides experiments with a rich set of data to systematically test models and scaling behaviors in various collision systems. The latest RHIC run collided U+U and Cu+Au nuclei. These collisions promise an array of unique initial geometrical configurations. For example, in U+U collisions the slightly elongated nuclei overlap in a variety of different ways such that, even at zero impact parameter, distinct configurations exist. In central Cu+Au collisions the Cu nucleus is completely embedded within the Au. Such geometries present an opportunity to measure the wide range of initial energy densities of these systems. They also allow the study of some unique features arising from these configurations. In particular, the odd harmonics from the Cu+Au system offer sensitivity to v3generated from the collision geometry as opposed to fluctuations in a symmetric system. In these proceedings the analysis status of the recently taken U+U and Cu+Au data in PHENIX is presented. The results from the global particle production and the challenges in analyzing these asymmetric systems is discussed.