Phenomenology of light- and strange-quark simultaneous production at high energies
Tawfik A.; Sayed, Hayam; Abo Elyazeed E.;
Abstract
© 2017, Pleiades Publishing, Ltd. This letter presents an extension of EPL116(2017)62001 to light- and strange-quark nonequilibrium chemical phase-space occupancy factors (γq,s). The resulting damped trigonometric functionalities relating γq,sto the nucleon-nucleon center-of-mass energies (sNN) looks very similar except different coefficients. The phenomenology of the resulting γq,s(sNN) describes a rapid decrease at sNN ≲ 7GeV followed by a faster increase up to ~20 GeV. Then, both γq,sbecome nonsensitive to sNN. Although these differ from γs(sNN)obtained at γq(sNN)=1, various particle ratios including K+/π+, K−/π−, Λ/π−, Λ̄/π−, Ξ+/π+, and Ω/π−, can well be reproduced, as well. We conclude that γq,s(sNN) should be instead determined from fits of various particle yields and ratios but not merely from fits to the particle ratio K+/π+.
Other data
Title | Phenomenology of light- and strange-quark simultaneous production at high energies | Authors | Tawfik A. ; Sayed, Hayam ; Abo Elyazeed E. | Keywords | High Energy Physics - Phenomenology;High Energy Physics - Phenomenology | Issue Date | 1-Nov-2017 | Journal | Physics of Particles and Nuclei Letters | DOI | 6 843 https://api.elsevier.com/content/abstract/scopus_id/85036590909 14 10.1134/S154747711706019X |
Scopus ID | 2-s2.0-85036590909 |
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