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Centrality dependence of charged-neutral particle fluctuations in 158A (GeVPb)-Pb-208+Pb-208 collisions

Aggarwal, MM; Ahammed, Z; Angelis, ALS; Antonenko, V; Arefiev, V; Astakhov, V; Avdeitchikov, V; Awes, TC; Baba, PVKS and Badyal, SK, et al. (2003) In Physical Review C (Nuclear Physics) 67(4).
Abstract
Results on the study of localized fluctuations in the multiplicity of charged particles and photons produced in 158A GeV/c Pb+Pb collisions are presented for varying centralities. The charged versus neutral particle multiplicity correlations in common phase space regions of varying azimuthal sizes are analyzed by two different methods. Various types of mixed events are constructed to probe fluctuations arising from different sources. The measured results are compared to those from simulations and from mixed events. The comparison indicates the presence of nonstatistical fluctuations in both the charged particle and photon multiplicities in limited azimuthal regions. However, no correlated charged-neutral fluctuations, a possible signature... (More)
Results on the study of localized fluctuations in the multiplicity of charged particles and photons produced in 158A GeV/c Pb+Pb collisions are presented for varying centralities. The charged versus neutral particle multiplicity correlations in common phase space regions of varying azimuthal sizes are analyzed by two different methods. Various types of mixed events are constructed to probe fluctuations arising from different sources. The measured results are compared to those from simulations and from mixed events. The comparison indicates the presence of nonstatistical fluctuations in both the charged particle and photon multiplicities in limited azimuthal regions. However, no correlated charged-neutral fluctuations, a possible signature of formation of disoriented chiral condensates, are observed. An upper limit on the production of disoriented chiral condensates is set. (Less)
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Physical Review C (Nuclear Physics)
volume
67
issue
4
publisher
American Physical Society
external identifiers
  • wos:000182727600049
ISSN
0556-2813
DOI
10.1103/PhysRevC.67.044901
language
English
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yes
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5804d509-d331-4824-8dab-901cff82073a (old id 907476)
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2008-01-09 12:17:27
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2016-11-18 13:57:11
@article{5804d509-d331-4824-8dab-901cff82073a,
  abstract     = {Results on the study of localized fluctuations in the multiplicity of charged particles and photons produced in 158A GeV/c Pb+Pb collisions are presented for varying centralities. The charged versus neutral particle multiplicity correlations in common phase space regions of varying azimuthal sizes are analyzed by two different methods. Various types of mixed events are constructed to probe fluctuations arising from different sources. The measured results are compared to those from simulations and from mixed events. The comparison indicates the presence of nonstatistical fluctuations in both the charged particle and photon multiplicities in limited azimuthal regions. However, no correlated charged-neutral fluctuations, a possible signature of formation of disoriented chiral condensates, are observed. An upper limit on the production of disoriented chiral condensates is set.},
  author       = {Aggarwal, MM and Ahammed, Z and Angelis, ALS and Antonenko, V and Arefiev, V and Astakhov, V and Avdeitchikov, V and Awes, TC and Baba, PVKS and Badyal, SK and Bathe, S and Batiounia, B and Bernier, T and Bhalla, KB and Bhatia, VS and Blume, C and Bucher, D and Busching, H and Carlén, Lars and Chattopadhyay, S and Decowski, MP and Delagrange, H and Donni, P and Majumdar, MRD and El Chenawi, K and Dubey, AK and Enosawa, K and Fokin, S and Frolov, V and Ganti, MS and Garpman, Sten and Gavrishchuk, O and Geurts, FJM and Ghosh, TK and Glasow, R and Guskov, B and Gustafsson, Hans-Åke and Gutbrod, HH and Hrivnacova, I and Ippolitov, M and Kalechofsky, H and Karadjev, K and Karpio, K and Kolb, BW and Kosarev, I and Koutcheryaev, I and Kugler, A and Kulinich, P and Kurata, M and Lebedev, A and Lohner, H and Luquin, L and Mahapatra, DP and Manko, V and Martin, M and Martinez, G and Maximov, A and Miake, Y and Mishra, GC and Mohanty, B and Mora, MJ and Morrison, D and Mukhanova, T and Mukhopadhyay, DS and Naef, H and Nandi, BK and Nayak, SK and Nayak, TK and Nianine, A and Nikitine, V and Nikolaev, S and Nilsson, Pål and Nishimura, S and Nomokonov, P and Nystrand, J and Oskarsson, A and Otterlund, I and Peitzmann, T and Peressounko, D and Petracek, V and Pinganaud, W and Plasil, F and Purschke, ML and Rak, J and Raniwala, R and Raniwala, S and Rao, NK and Retiere, F and Reygers, K and Roland, G and Rosselet, L and Roufanov, I and Roy, C and Rubio, JM and Sambyal, SS and Santo, R and Sato, S and Schlagheck, H and Schmidt, HR and Schutz, Y and Shabratova, G and Shah, TH and Sibiriak, I and Siemiarczuk, T and Silvermyr, D and Sinha, BC and Slavine, N and Soderstrom, K and Sood, G and Sorensen, SP and Stankus, P and Stefanek, G and Steinberg, P and Stenlund, E and Sumbera, M and Svensson, T and Tsvetkov, A and Tykarski, L and von der Pijll, EC and von Eijndhoven, N and von Nieuwenhuizen, GJ and Vinogradov, A and Viyogi, YP and Vodopianov, A and Voros, S and Wyslouch, B and Young, GR},
  issn         = {0556-2813},
  language     = {eng},
  number       = {4},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Centrality dependence of charged-neutral particle fluctuations in 158A (GeVPb)-Pb-208+Pb-208 collisions},
  url          = {http://dx.doi.org/10.1103/PhysRevC.67.044901},
  volume       = {67},
  year         = {2003},
}