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

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collisions
nuclei
coalescing
heavy ions
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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D- and 3He- production in √sNN = 130GeV Au + Au collisions. / STAR Collaboration.

In: Physical Review Letters, Vol. 87, No. 26, 24.12.2001, p. 262301-1-262301-2.

Research output: Contribution to journalArticle

STAR Collaboration. / D- and 3He- production in √sNN = 130GeV Au + Au collisions. In: Physical Review Letters. 2001 ; Vol. 87, No. 26. pp. 262301-1-262301-2.
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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.",
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AU - Ahammed, Z.

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AU - Amonett, J.

AU - Anderson, B. D.

AU - Anderson, M.

AU - Averichev, G. S.

AU - Balewski, J.

AU - Barannikova, O.

AU - Barnby, L. S.

AU - Baudot, J.

AU - Bekele, S.

AU - Belaga, V. V.

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AU - Berger, J.

AU - Bichsel, H.

AU - Bland, L. C.

AU - Blyth, C. O.

AU - Bonner, B. E.

AU - Boucham, A.

AU - Brandin, A.

AU - Cadman, R. V.

AU - Caines, H.

AU - Calderón de la Barca Sánchez, M.

AU - Cardenas, A.

AU - Carroll, J.

AU - Castillo, J.

AU - Castro, M.

AU - Cebra, D.

AU - Chattopadhyay, S.

AU - Chen, M. L.

AU - Chen, Y.

AU - Chernenko, S. P.

AU - Cherney, Michael G.

AU - Chikanian, A.

AU - Choi, B.

AU - Christie, W.

AU - Coffin, J. P.

AU - Cormier, T. M.

AU - Cramer, J. G.

AU - Crawford, H. J.

AU - DeMello, M.

AU - Deng, W. S.

AU - Derevschikov, A. A.

AU - Didenko, L.

AU - Draper, J. E.

AU - Dunin, V. B.

AU - Dunlop, J. C.

AU - Eckardt, V.

AU - Seger, Janet E.

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AB - 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.

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