HBT radii : Comparative studies on collision systems and beam energies

Abstract

Two-particle Hanbury-Brown-Twiss (HBT) interferometry is an important probe for understanding the space-time structure of particle emission sources in high energy heavy ion collisions. We present the comparative studies of HBT radii in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 17.3 GeV with Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 19.6 GeV. To further our understanding for this specific energy regime we also compare the HBT radii for Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 19.6 GeV with Cu+Cu collisions at $\sqrt{s_{\mathrm{NN}}}$ = 22.4 GeV. We have found interesting similarity in the $R_{\mathrm{out}}/R_{\mathrm{side}}$ ratio with $m_{\mathrm{T}}$ across the collision systems while comparing the data for this specific energy zone which is interesting as it acts as a bridge from SPS energy regime to the RHIC energy domain.

Review Article

References in corpus (4)

• Has the QCD Critical Point been Signaled by Observations at RHIC ?
• A Family of Equations of State Based on Lattice QCD: Impact on Flow in Ultrarelativistic Heavy-Ion Collisions
• Directed and elliptic flow in heavy ion collisions from $E_{\mathrm{beam}}=90$ MeV/nucleon to $E_{c.m.}=200$ GeV/nucleon
• Searching for minimum in dependence of squared speed-of-sound on collision energy

Cited by in corpus (1)

• Extension of the integrated hydrokinetic model to nuclear collision energies relevant for the RHIC Beam-Energy Scan program and the research program at GSI-FAIR