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 language | English (US) |
|---|---|
| Pages (from-to) | 262301-1-262301-2 |
| Journal | Physical Review Letters |
| Volume | 87 |
| Issue number | 26 |
| DOIs | |
| State | Published - Dec 24 2001 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
Cite this
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 journal › Article
}
TY - JOUR
T1 - D- and 3He- production in √sNN = 130GeV Au + Au collisions
AU - STAR Collaboration
AU - Adler, C.
AU - Ahammed, Z.
AU - Allgower, C.
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.
AU - Bellwied, R.
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.
PY - 2001/12/24
Y1 - 2001/12/24
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=85037240988&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85037240988&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.87.262301
DO - 10.1103/PhysRevLett.87.262301
M3 - Article
VL - 87
SP - 262301-1-262301-2
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 26
ER -