Title
Study of Kinetic Freeze-Out Parameters as a Function of Rapidity in pp Collisions at CERN SPS Energies
Abstract
We used the blast wave model with the Boltzmann-Gibbs statistics and analyzed the experimental data measured by the NA61/SHINE Collaboration in inelastic (INEL) proton-proton collisions at different rapidity slices at different center-of-mass energies. The particles used in this study were p(+), p(-), K+, K-, and p over bar . We extracted the kinetic freeze-out temperature, transverse flow velocity, and kinetic freeze-out volume from the transverse momentum spectra of the particles. We observed that the kinetic freeze-out temperature is rapidity and energy dependent, while the transverse flow velocity does not depend on them. Furthermore, we observed that the kinetic freeze-out volume is energy dependent, but it remains constant with changing the rapidity. We also observed that all three parameters are mass dependent. In addition, with the increase of mass, the kinetic freeze-out temperature increases, and the transverse flow velocity, as well as kinetic freeze-out volume decrease.
Year
DOI
Venue
2021
10.3390/e23101363
ENTROPY
Keywords
DocType
Volume
rapidity, transverse momentum spectra, kinetic freeze-out temperature, transverse flow velocity, kinetic freeze-out volume
Journal
23
Issue
ISSN
Citations 
10
1099-4300
0
PageRank 
References 
Authors
0.34
0
9