Scaling of particle and transverse energy production in 208Pb+208Pb collisions at 158·A GeV

MM Aggarwal*, A Agnihotri, Z Ahammed, ALS Angelis, [No Value] Antonenko, [No Value] Arefiev, [No Value] Astakhov, [No Value] Avdeitchikov, TC Awes, PVKS Baba, SK Badyal, A Baldine, L Barabach, C Barlag, S Bathe, B Batiounia, T Bernier, KB Bhalla, VS Bhatia, C BlumeEM Bohne, ZK Borocz, D Bucher, A Buijs, H Busching, L Carlen, [No Value] Chalyshev, S Chattopadhyay, R Cherbatchev, T Chujo, A Claussen, AC Das, MP Decowski, H Delagrange, [No Value] Djordjadze, P Donni, [No Value] Doubovik, S Dutt, MRD Majumdar, K El Chenawi, S Eliseev, K Enosawa, P Foka, S Fokin, [No Value] Frolov, MS Ganti, S Garpman, O Gavrishchuk, TK Ghosh, H. Löhner, WA98 Collaboration

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

Transverse energy, charged particle pseudorapidity distributions and photon transverse momentum spectra have been studied as a function of the number of participants (N-part) and the number of binary nucleon-nucleon collisions (N-coll) in 158.A GeV Pb+Pb collisions over a wide impact parameter range. A scaling of the transverse energy pseudorapidity density at midrapidity as similar to N-part(1.08+/-0.06) and similar toN(coll)(0.83+/-0.05) is part coil observed. For the charged particle pseudorapidity density at midrapidity we find a scaling as similar to N-part(1.07+/-0.04) and similar toN(coll)(0.82+/-0.03). This faster than linear scaling with N-part indicates a violation of the naive Wounded Nucleon Model.

Original languageEnglish
Pages (from-to)651-663
Number of pages13
JournalEuropean Physical Journal C
Volume18
Issue number4
Publication statusPublished - Jan-2001

Keywords

  • NUCLEUS-NUCLEUS COLLISIONS
  • HEAVY-ION COLLISIONS
  • ULTRARELATIVISTIC ENERGIES
  • DISTRIBUTIONS
  • MOMENTUM
  • HADRONS
  • MODEL
  • MULTIPLICITY
  • TARGETS
  • PLASMA

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