Event-by-event fluctuations in particle multiplicities and transverse energy produced in 158A GeVPb plus Pb collisions

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Abstract

Event-by-event fluctuations in the multiplicities of charged particles and photons, and the total transverse energy in 158A 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.

Details

Authors
  • MM Aggarwal
  • Z Ahammed
  • ALS Angelis
  • V Antonenko
  • V Arefiev
  • V Astakhov
  • V Avdeitchikov
  • TC Awes
  • PVKS Baba
  • SK Badyal
  • S Bathe
  • B Batiounia
  • T Bernier
  • KB Bhalla
  • VS Bhatia
  • C Blume
  • D Bucher
  • H Busching
  • Lars Carlén
  • S Chattopadhyay
  • MP Decowski
  • H Delagrange
  • P Donni
  • MRD Majumdar
  • K El Chenawi
  • AK Dubey
  • K Enosawa
  • S Fokin
  • V Frolov
  • MS Ganti
  • Sten Garpman
  • O Gavrishchuk
  • FJM Geurts
  • TK Ghosh
  • R Glasow
  • B Guskov
  • Hans-Åke Gustafsson
  • HH Gutbrod
  • I Hrivnacova
  • M Ippolitov
  • H Kalechofsky
  • K Karadjev
  • K Karpio
  • BW Kolb
  • I Kosarev
  • I Koutcheryaev
  • A Kugler
  • P Kulinich
  • M Kurata
  • A Lebedev
  • H Lohner
  • L Luquin
  • DP Mahapatra
  • V Manko
  • M Martin
  • G Martinez
  • A Maximov
  • Y Miake
  • GC Mishra
  • B Mohanty
  • MJ Mora
  • D Morrison
  • T Mukhanova
  • DS Mukhopadhyay
  • H Naef
  • BK Nandi
  • SK Nayak
  • TK Nayak
  • A Nianine
  • V Nikitine
  • S Nikolaev
  • P Nilsson
  • S Nishimura
  • P Nomokonov
  • Joakim Nystrand
  • T Peitzmann
  • D Peressounko
  • V Petracek
  • SC Phatak
  • W Pinganaud
  • F Plasil
  • ML Purschke
  • J Rak
  • R Raniwala
  • S Raniwala
  • NK Rao
  • F Retiere
  • K Reygers
  • G Roland
  • L Rosselet
  • I Roufanov
  • C Roy
  • JM Rubio
  • SS Sambyal
  • R Santo
  • S Sato
  • H Schlagheck
  • HR Schmidt
  • Y Schutz
  • G Shabratova
  • TH Shah
  • I Sibiriak
  • T Siemiarczuk
  • BC Sinha
  • N Slavine
  • Kaj Söderström
  • G Sood
  • SP Sorensen
  • P Stankus
  • G Stefanek
  • P Steinberg
  • M Sumbera
  • Tomas Svensson
  • A Tsvetkov
  • L Tykarski
  • EC von der Pijll
  • N von Eijndhoven
  • GJ von Nieuwenhuizen
  • A Vinogradov
  • YP Viyogi
  • A Vodopianov
  • S Voros
  • B Wyslouch
  • GR Young
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Article number054912
JournalPhysical Review C (Nuclear Physics)
Volume65
Issue number5
Publication statusPublished - 2002
Publication categoryResearch
Peer-reviewedYes