Femtoscopy at NA61/SHINE using symmetric Lévy sources in central ${}^{40}$Ar+${}^{45}$Sc from 40$A$ GeV/$c$ to 150$A$ GeV/$c$

Abstract

In the recent decades of high energy physics research, it was demonstrated that strongly interacting quark-gluon plasma (sQGP) is created in ultra-relativistic nucleus-nucleus collisions. Investigation and understanding of properties of the hadronic matter is among the important goals of NA61/SHINE collaboration at CERN SPS. Mapping of the phase diagram is achieved by varying the collision energy (5 GeV $<\sqrt{s_{\text{NN}}}<$17 GeV) and by changing the collision system (p+p, p+Pb, Be+Be, Ar+Sc, Xe+La, Pb+Pb). We report on the measurement of femtoscopic correlations in intermediate system at intermediate SPS energies. Interpreting the results of measurements within the symmetric Lévy source formalism, we discuss the values of Lévy source parameters as a function of average pair transverse mass. One of the physical parameters is particularly important, the Lévy exponent $\alpha$, which describes the shape of the source and may be related to the critical exponent $\eta$ in the proximity of the critical point. Therefore, measuring it may shed light on the location of the critical endpoint of the QCD phase diagram.

arXiv comment11 pages, 7 figures, proceedings of the 23rd Zimanyi School Winter Workshop on Heavy Ion Physics, Budapest, Hungary, December 4 - 8, 2023, published in the International Journal of Modern Physics A, special issue "Zimanyi School 2023"

References in corpus (23)

• Signatures of the Tricritical Point in QCD
• On the Phase Diagram of QCD
• Solving the 3d Ising Model with the Conformal Bootstrap II. c-Minimization and Precise Critical Exponents
• NA61/SHINE facility at the CERN SPS: beams and detector system
• Bose-Einstein Correlations for Three-Dimensionally Expanding, Cylindrically Symmetric, Finite Systems
• Boson Interferometry in High Energy Physics
• Critical Behavior of the 3d Random Field Ising Model: Two-Exponent Scaling or First Order Phase Transition?
• Bose-Einstein correlations for Levy stable source distributions
• Bose-Einstein correlations of pion pairs in central Pb+Pb collisions at CERN SPS energies
• Lévy-stable two-pion Bose-Einstein correlations in $\sqrt{s_{{}_{NN}}}=200$ GeV Au$+$Au collisions
• Significant in-medium eta' mass reduction in sqrt(s(NN))=200 GeV Au+Au collisions at the BNL Relativistic Heavy Ion Collider
• Observables from a solution of 1+3 dimensional relativistic hydrodynamics
• Coulomb and strong interactions in the final state of HBT correlations for Lévy type source functions
• Event-by-event investigation of the two-particle source function in heavy-ion collisions with EPOS
• Two-pion femtoscopic correlations in Be+Be collisions at $\sqrt{s_{\text{NN}}}=16.84$ GeV measured by the NA61/SHINE at CERN
• Coulomb Effects in Femtoscopy
• Expanded empirical formula for Coulomb final state interaction in the presence of Lévy sources
• Coulomb Corrections for Bose-Einstein Correlations from One- And Three-Dimensional Lévy-Type Source Functions
• Event-by-event investigation of the two-particle source function in $\sqrt{s_{{}_{\text{NN}}}}=2.76$ TeV PbPb collisions with EPOS
• Femtoscopy with Lévy sources from SPS through RHIC to LHC
• Pion interferometry with Lévy-stable sources in $\sqrt{s_{NN}}$ = 200 GeV Au+Au collisions at STAR
• A novel method for calculating Bose-Einstein correlation functions with Coulomb final-state interaction
• Femtoscopic correlation measurement with symmetric Lévy-type source at NA61/SHINE

Cited by in corpus (3)

• Lévy walk of pions in heavy-ion collisions
• Investigating the excitation function of HBT radii for Lévy-stable sources
• Use of the Meta-analysis and Kolmogorov Criteria in the Finding of Singularities of a Nuclear Matter Created in Ultra Relativistic Nuclear Collisions