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

Abstract

We report on the measurements of strange hadron ($K_S^0$, $\Lambda$, $\Xi$) 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 ($\pi$,$K_S^0$, $\varphi$) -- dependence at intermediate $p_T$ (2 - 3.5 GeV/c), indicating that the final state may have an impact on the Cronin effect.

4 pages, 3 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee; minor text changes according to conference internal review

References in corpus (4)

• Measurements of $\varphi$ meson production in relativistic heavy-ion collisions at RHIC
• Enhanced strange baryon production in Au+Au collisions compared to p+p at sqrts = 200 GeV
• Centrality dependence of strangeness production in heavy-ion collisions as a geometrical effect of core-corona superposition
• Cronin effect in proton-nucleus collisions: a survey of theoretical models

Cited by in corpus (3)

• Core-corona effect in hadron collisions and muon production in air showers
• Unraveling sub-leading twist GTMDs of proton using LFQDM
• Highlights from STAR: probing the early medium in heavy ion collisions