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Centrality dependence of charged-particle pseudorapidity distributions from d + Au collisions at sqrt[sNN] = 200 GeV.
- Source :
-
Physical review letters [Phys Rev Lett] 2005 Jan 28; Vol. 94 (3), pp. 032301. Date of Electronic Publication: 2005 Jan 26. - Publication Year :
- 2005
-
Abstract
- Charged-particle pseudorapidity densities are presented for the d + Au reaction at sqrt[s(NN)] = 200 GeV with -4.2 < or = eta < or = 4.2. The results, from the BRAHMS experiment at BNL Relativistic Heavy-Ion Collider, are shown for minimum-bias events and 0%-30%, 30%-60%, and 60%-80% centrality classes. Models incorporating both soft physics and hard, perturbative QCD-based scattering physics agree well with the experimental results. The data do not support predictions based on strong-coupling, semiclassical QCD. In the deuteron-fragmentation region the central 200 GeV data show behavior similar to full-overlap d+Au results at sqrt[s(NN)] = 19.4 GeV.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 94
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 15698255
- Full Text :
- https://doi.org/10.1103/PhysRevLett.94.032301