Pórfy, B. (2025) Femtoscopy with Lévy sources at NA61/SHINE. Il nuovo cimento C, 48 (1). pp. 1-7. ISSN 1826-9885
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Abstract
In the recent decades of high-energy physics research, it was demonstrated that strongly interacting quark-gluon plasma (sQGP) is created in ultrarelativistic nucleus-nucleus collisions. Investigation and understanding of the properties of the hadronic matter are among the most important goals of the NA61/SHINE collaboration at CERN SPS. Mapping of the phase diagram is achieved by varying the collision energy (5 GeV √s NN <17 GeV) and by changing the collision system (p+p, p+Pb, Be+Be, Ar+Sc, Xe+La, Pb+Pb). Femtoscopic correlations reveal the space-time structure of the hadron emitting source. In this article, we report on the measurement of femtoscopic correlations in small to intermediate systems. Comparing the measurements to calculations based on symmetric Lévy sources, we discuss the results on Lévy source parameters as a function of average pair transverse mass. One of the physical parameters is of particular importance, the Lévy exponent α, which describes the shape of the source and may be related to the critical exponent η 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.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 24 Mar 2025 15:25 |
| Last Modified: | 24 Mar 2025 15:25 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23516 |
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