Energy dependence of femtoscopy properties of pion source in nuclear collisions

2013/12/16 by В. А. Окороков, Okorokov, V. A.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1312.4269

openalex publication_date 2013/12/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In the paper energy dependence of femtoscopy characteristics of pion emission region at freeze-out is investigated for collisions of various ions and for all experimentally available energies. For the first time the normalized values of radii and volume of source are used for energy dependence. This approach allows us to expand the set of interaction types, in particular, on non-symmetrical nucleus-nucleus collisions which can be studied in the framework of common approach. There are no the sharp changing of femtoscopic parameter values, in particular, R_o/R_s with increasing of √s_NN which were predicted by some phenomenological models as signature of first order phase transition in strongly interacting matter. The generalized parameterization for femtoscopic correlation function is suggested.

Related

• Beam-energy and system-size dependence of the space-time extent of the pion emission source produced in heavy ion collisions
• Can we obtain a "new femtoscopy" on the basis of electromagnetic effects?
• Pion-Kaon femtoscopy as a probe of the space-time emission anisotropies due to interactions at the hadronic stage of matter evolution in relativistic heavy-ion collisions
• Pion Source in Au+Au Collisions at √(S_NN)=130 GeV
• Femtoscopic signatures of unique nuclear structures in relativistic collisions