Global Observations from PHOBOS
| dc.creator | Baker, Mark D. | |
| dc.date | 2002-12-09 | |
| dc.date.accessioned | 2026-07-07T10:50:43Z | |
| dc.date.available | 2026-07-07T10:50:43Z | |
| dc.description | Particle production in Au+Au collisions has been measured in the PHOBOS experiment at RHIC for a range of collision energies. Three empirical observations have emerged from this dataset which require theoretical examination. First, there is clear evidence of limiting fragmentation. Namely, particle production in central Au+Au collisions, when expressed as $dN/dη'$ ($η' \equiv η-y_{beam}$), becomes energy independent at high energy for a broad region of $η'$ around $η'=0$. This energy-independent region grows with energy, allowing only a limited region (if any) of longitudinal boost-invariance. Second, there is a striking similarity between particle production in e+e- and Au+Au collisions (scaled by the number of participating nucleon pairs). Both the total number of produced particles and the longitudinal distribution of produced particles are approximately the same in e+e- and in scaled Au+Au. This observation was not predicted and has not been explained. Finally, particle production has been found to scale approximately with the number of participating nucleon pairs for $N_{part}>65$. This scaling occurs both for the total multiplicity and for high $\pT$ particles (3 $<\pT<$ 4.5 GeV/c). | |
| dc.description | QM2002 plenary talk, 10 pages, 11 figures | |
| dc.identifier | https://arxiv.org/abs/nucl-ex/0212009 | |
| dc.identifier | http://arxiv.org/abs/nucl-ex/0212009 | |
| dc.identifier | Nucl.Phys.A715:65-74,2003 | |
| dc.identifier | doi:10.1016/S0375-9474(02)01414-8 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184626 | |
| dc.subject | Nuclear Experiment | |
| dc.title | Global Observations from PHOBOS | |
| dc.type | text |