Strangeness production in d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV in STAR

Details Strangeness production in d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV in STAR Strangeness production in d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV in STAR

2009-07-15

arxiv.org/abs/0907.2633v2

Nucl.Phys.A830:845c-848c,2009

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 3 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee;

Scientific paper

10.1016/j.nuclphysa.2009.10.009

We report on the measurements of strange hadron ($K^0_S$, $\Lambda$, $\Xi$) production in the most central (0-20%) d+Au collisions at \sqrt{s_{NN}} = 200 GeV in STAR. Significant strangeness enhancement is observed in the most central d+Au collisions, especially for multi-strange hyperons ($\Xi$). The nuclear modification factor ($R_{dAu}$) of identified particles shows possible particle type -- baryon (protons, $\Lambda$), meson ($\pi$,$K^0_S$, $\phi$) -- dependence at intermediate $p_T$ (2 - 3.5 GeV/c), indicating that the final state may have an impact on the Cronin effect.

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