Volume 116, Number 6, December 2016
|Number of page(s)||5|
|Published online||02 February 2017|
Phenomenology of strangeness production at high energies
1 Egyptian Center for Theoretical Physics (ECTP), MTI University - 11571 Cairo, Egypt
2 World Laboratory for Cosmology And Particle Physics (WLCAPP) - 11571 Cairo, Egypt
3 Physics Department, Faculty of Women for Arts, Science and Education, Ain Shams University 11577 Cairo, Egypt
4 Physics Department, Faculty of Science, Helwan University - 11795 Cairo, Egypt
5 Faculty of Computer Sciences, MTI University - 11671 Cairo, Egypt
Received: 14 December 2016
Accepted: 16 January 2017
The strange-quark occupation factor is determined from the statistical fit of the multiplicity ratio in a wide range of nucleon-nucleon center-of-mass energies (). From this single-strange-quark subsystem, was parametrized as a damped trigonometric functionality and successfully implemented into the hadron resonance gas model, at chemical semi-equilibrium. Various particle ratios including , , and are well reproduced. The phenomenology of suggests that the hadrons ( rises) at seem to undergo a phase transition to a mixed phase ( decreases), which is then derived into partons ( remains unchanged with increasing ), at .
PACS: 25.75.-q – Relativistic heavy-ion collisions / 25.75.Dw – Particle and resonance production / 24.85.+p – Quarks, gluons, and QCD in nuclear reactions
© EPLA, 2016
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