Pion-kaon femtoscopy in Au+Au collisions at STAR

Hot Quarks 2014: Workshop for young scientists on the physics of ultrarelativistic nucleus-nucleus collisions

Poniatowska, Katarzyna^1

Warsaw University of Technology, Koszykowa 75, Warsaw

00-662, Poland^1

关键词: Au+Au collisions;    Beam energies;    Emission process;    Initial conditions;    Mid-rapidity;    Non-identical particles;    Particle emissions;    Source sizes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/612/1/012045/pdf
DOI  :  10.1088/1742-6596/612/1/012045

来源: IOP

【 摘 要 】

In non-identical particle correlations, e.g. pion-kaon femtoscopy, one can obtain information about source size and asymmetry in emission processes of pions and kaons. Such asymmetry give us knowledge of which type of particles is emitted first/second and/or from which region of the source. The studies of non-identical particle femtoscopy for Beam Energy Scan energies give us the opportunity to study how the source size and asymmetry in particle emission depend on the initial conditions of the collision. It also allows one to examine these parameters in the vicinity of the theoretical critical point. In these proceedings, we present STAR results of pion-kaon femtoscopy at mid-rapidity in Au+Au collisions at √sNN= 7.7, 19.6 and 39 GeV.