D- and 3He- production in √sNN = 130GeV Au + Au collisions

STAR Collaboration

Research output: Contribution to journalArticle

Abstract

The first measurements of light antinucleus production in Au + Au collisions at the Relativistic Heavy-Ion Collider are reported. The observed production rates for d- and 3 He- are much larger than in lower energy nucleus-nucleus collisions. A coalescence model analysis of the yields indicates that there is little or no increase in the antinucleon freeze-out volume compared to collisions at CERN SPS energy. These analyses also indicate that the 3 He- freeze-out volume is smaller than the d- freeze-out volume.

Original languageEnglish (US)
Pages (from-to)262301-1-262301-2
JournalPhysical Review Letters
Volume87
Issue number26
DOIs
StatePublished - Dec 24 2001

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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