XXV International Baldin Seminar on High Energy Physics Problems "Relativistic Nuclear Physics and Quantum Chromodynamics"

Identical Pion Interferometry from Au+Au Collisions at sNN = 3.2, 3.5, and 3.9 GeV in the STAR Experiment at RHIC

22 Sept 2023, 09:40

20m

Blokhintsev auditorium (BLTP JINR)

Parallel: Relativistic heavy ion collisions

Speaker

Luong, Vinh (Joint Institute for Nuclear Research)

Description

Two-pion interferometry provides access to the spatial and temporal size, shape and evolution of their sources created in heavy ion collisions and hence offers strong constraints for the theoretical models.
In this work, we will report the measurement of correlation strength ($\lambda$) and femtoscopic radii ($R_{\mathrm{out}}$, $R_{\mathrm{side}}$, $R_{\mathrm{long}}$, $R_{\mathrm{out}-\mathrm{long}}$) extracted from the two-pion correlation function in Au+Au collisions at $\sqrt{s_{NN}}$ = 3.2, 3.5, and 3.9 GeV. The dependences of these parameters on pair transverse momentum, pair rapidity, collision centrality, and collision energy will be presented and their physics implications will be discussed.

Presentation materials

ISHEPP_2023_PionFemto_STAR_FXT_Vinh_v3.pdf

Peer reviewing

Paper

Accepted on 4 Dec 2023 by Baldin ISHEPP Seminar

Paper files:

• PionFemtoscopy_STAR_FXT_Vinh.zip