Abstract
Event-by-event fluctuations in the multiplicities of charged particles and photons, and the total transverse energy in 158 A GeV Pb+Pb collisions are studied for a wide range of centralities. For narrow centrality bins the multiplicity and transverse energy distributions are found to be near perfect Gaussians. The effect of detector acceptance on the multiplicity fluctuations has been studied and demonstrated to follow statistical considerations. The centrality dependence of the charged particle multiplicity fluctuations in the measured data has been found to agree reasonably well with those obtained from a participant model. However, for photons the multiplicity fluctuations have been found to be lower compared to those obtained from a participant model. The multiplicity and transverse energy fluctuations have also been compared to those obtained from the VENUS event generator.
Original language | English (US) |
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Article number | 054912 |
Pages (from-to) | 549121-5491214 |
Number of pages | 4942094 |
Journal | Physical Review C - Nuclear Physics |
Volume | 65 |
Issue number | 5 |
State | Published - May 2002 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics