| Issue |
EPJ Web Conf.
Volume 316, 2025
The 21st International Conference on Strangeness in Quark Matter (SQM 2024)
|
|
|---|---|---|
| Article Number | 05003 | |
| Number of page(s) | 4 | |
| Section | Resonances, Nuclei and Hyper-nuclei | |
| DOI | https://doi.org/10.1051/epjconf/202531605003 | |
| Published online | 27 January 2025 | |
https://doi.org/10.1051/epjconf/202531605003
Energy dependence of ϕ(1020) meson production in nucleus-nucleus collisions at the CERN SPS
H. Niewodniczánski Institute of Nuclear Physics, PAS, Radzikowskiego 152, 31-342 Kraków, Poland
* e-mail: lukasz.rozplochowski@ifj.edu.pl
Published online: 27 January 2025
This paper presents preliminary results from the NA61/SHINE experiment on ϕ meson production in central Ar+Sc collisions at beam momenta of 150A, 75A, and 40A GeV/c (corresponding to √sNN, and 8.8 GeV, respectively). These results include double differential distributions in rapidity (y) and transverse momentum (pT), as well as pT -integrated rapidity distributions and total ϕ yields. Additionally, the widths of the rapidity distributions of ϕ and ϕ/π yield ratios are compared to those from Pb+Pb and p+p reactions. Notably, this work represents the first-ever measurements of ϕ production in a mid-sized system at SPS energies.
© The Authors, published by EDP Sciences, 2025
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