# XII Workshop on Particle Correlations and Femtoscopy

Jun 12 – 16, 2017
Other Institutes
Europe/Zurich timezone

## Femtoscopic correlations of pions and kaons measured in the BES program at STAR

Jun 14, 2017, 4:35 PM
25m
Other Institutes

#### Other Institutes

Nikhef Science Park 105 1098XG Amsterdam The Netherlands

### Speaker

Grigory Nigmatkulov (National Research Nuclear University MEPhI)

### Description

In high-energy heavy-ion collisions, a hot and dense strongly
interacting system of deconfined quarks and gluons (sQGP) is created.
The Beam Energy Scan program at RHIC was performed to map the QCD phase
diagram. Femtoscopy allows one to measure the space-time extent of the
particle emitting source created in heavy-ion collisions. In this talk,
we present preliminary results of the measurement of like-sign two-pion
and two-kaon correlations from the BES program at STAR.
Since kaons contain strange quark and have smaller cross-sections,
compared to that of pions, with hadronic matter,
function of collision centrality and transverse mass ($m_T$) of the