Strangeness Enhancement in the Parton Model

Abstract

Strangeness enhancement in heavy-ion collisions is studied at the parton level by examining the partition of the new sea quarks generated by gluon conversion into the strange and non-strange sectors. The CTEQ parton distribution functions are used as a baseline for the quiescent sea before gluon conversion. By quark counting simple constraints are placed on the hadron yields in different channels. The experimental values of particle ratios are fitted to determine the strangeness enhancement factor. A quantitative measure of Pauli blocking is determined. Energy dependence between SPS and RHIC energies is well described. No thermal equilibrium or statistical model is assumed.

5 RevTex pages, no figures

References in corpus (6)

• Hadron production in Au-Au collisions at RHIC
• Mid-rapidity anti-proton to proton ratio from Au+Au collisions at $\sqrt{s_{NN}}=130$ GeV
• Inclusive Distributions for Hadronic Collisions in the Valon-Recombination Model
• Strangeness enhancement and Energy dependence in Heavy Ion Collisions
• Parton Distributions in the Valon Model
• Resonance Studies at STAR

Cited by in corpus (6)

• Scaling Distributions of Quarks, Mesons and Proton for all $p_T$, Energy and Centrality
• Production of strange particles at intermediate pT at RHIC
• Prompt ${\Lambda }_c^{+}$ production in $p\mathrm{Pb}$ collisions at $\sqrt{s_{NN}}=5.02$ TeV
• Faces of quark matter
• Strange hadron ratios from quark coalescence at RHIC and LHC
• Strange hadron yields and ratios in heavy ion collisions at RHIC energy