dc.contributor.author | KARASU UYSAL, Ayben | |
dc.contributor.author | ALICE Collaboration | |
dc.date.accessioned | 2019-07-08T08:35:35Z | |
dc.date.available | 2019-07-08T08:35:35Z | |
dc.date.issued | 2017 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12498/618 | |
dc.description.abstract | We present the charged-particle pseudorapidity density in Pb–Pb collisions at √sNN = 5.02 TeV in centrality classes measured by ALICE. The measurement covers a wide pseudorapidity range from −3.5 to 5, which is sufficient for reliable estimates of the total number of charged particles produced in the collisions. For the most central (0–5%) collisions we find 21400±1300, while for the most peripheral (80–90%) we find 230 ± 38. This corresponds to an increase of (27 ± 4)% over the results at √sNN = 2.76 TeV previously reported by ALICE. The energy dependence of the total number of charged particles produced in heavy-ion collisions is found to obey a modified power-law like behaviour. The charged- particle pseudorapidity density of the most central collisions is compared to model calculations — none of which fully describes the measured distribution. We also present an estimate of the rapidity density of charged particles. The width of that distribution is found to exhibit a remarkable proportionality to the beam rapidity, independent of the collision energy from the top SPS to LHC energies. | en_US |
dc.relation | http://dx.doi.org/10.1016/j.physletb.2017.07.017 | en_US |
dc.subject | Pseudorapidity Density | en_US |
dc.subject | LHC | |
dc.subject | ALICE | |
dc.title | Centrality dependence of the pseudorapidity density distribution for charged particles in Pb–Pb collisions at √sNN = 5.02 TeV | en_US |
dc.type | Makale | en_US |
eperson.orcidid | 0000-0001-6297-2532 | en_US |