Advanced

Centrality and transverse momentum dependence of collective flow in 158 A GeV Pb+Pb collisions measured via inclusive photons

Aggarwal, MM; Ahammed, Z; Angelis, ALS; Antonenko, V; Arefiev, V; Astakhov, V; Avdeitchikov, V; Awes, TC; Baba, PVKS and Badyal, SK, et al. (2005) In Nuclear Physics, Section A 762(1-2). p.129-146
Abstract
Directed and elliptic flow of inclusive photons near mid-rapidity in 158 A GeV Pb + Pb collisions has been studied. The data have been obtained with the photon spectrometer LEDA of the WA98 experiment at the CERN SPS. The flow strength has been measured for various centralities as a function of p(T) and rapidity over 0. 18 < p(T) < 1.5 GeV/c and 2.3 < y < 2.9. The angular anisotropy has been studied relative to an event plane obtained in the target fragmentation region that shows the elliptic flow to be in-plane. The elliptic flow has also been studied using two-particle correlations and shown to give similar results. A small directed flow component is observed. Both the directed and elliptic flow strengths increase with p(T).... (More)
Directed and elliptic flow of inclusive photons near mid-rapidity in 158 A GeV Pb + Pb collisions has been studied. The data have been obtained with the photon spectrometer LEDA of the WA98 experiment at the CERN SPS. The flow strength has been measured for various centralities as a function of p(T) and rapidity over 0. 18 < p(T) < 1.5 GeV/c and 2.3 < y < 2.9. The angular anisotropy has been studied relative to an event plane obtained in the target fragmentation region that shows the elliptic flow to be in-plane. The elliptic flow has also been studied using two-particle correlations and shown to give similar results. A small directed flow component is observed. Both the directed and elliptic flow strengths increase with p(T). The photon flow results are used to estimate the corresponding neutral pion flow. (Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
measured, nuclear reactions Pb-208(Pb-208, E=158 GeV/nucleon, inclusive photons direct and elliptic flow vs. centrality, X), deduced neutral pion flow features, transverse momentum, rapidity and
in
Nuclear Physics, Section A
volume
762
issue
1-2
pages
129 - 146
publisher
Elsevier
external identifiers
  • wos:000233138600005
  • scopus:27644570713
ISSN
0375-9474
DOI
10.1016/j.nuclphysa.2005.08.004
language
English
LU publication?
yes
id
bf004dd6-a56e-4a50-a7e2-0e86fb6024b9 (old id 213643)
date added to LUP
2007-08-07 10:41:06
date last changed
2017-01-01 07:24:09
@article{bf004dd6-a56e-4a50-a7e2-0e86fb6024b9,
  abstract     = {Directed and elliptic flow of inclusive photons near mid-rapidity in 158 A GeV Pb + Pb collisions has been studied. The data have been obtained with the photon spectrometer LEDA of the WA98 experiment at the CERN SPS. The flow strength has been measured for various centralities as a function of p(T) and rapidity over 0. 18 &lt; p(T) &lt; 1.5 GeV/c and 2.3 &lt; y &lt; 2.9. The angular anisotropy has been studied relative to an event plane obtained in the target fragmentation region that shows the elliptic flow to be in-plane. The elliptic flow has also been studied using two-particle correlations and shown to give similar results. A small directed flow component is observed. Both the directed and elliptic flow strengths increase with p(T). The photon flow results are used to estimate the corresponding neutral pion flow.},
  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 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 Dubey, AK and El Chenawi, K 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 Kamermans, R 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, Joakim and Oskarsson, Anders and Otterlund, Ingvar and Peitzmann, T and Peressounko, D and Petracek, V and Phatak, SC 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, David and Sinha, BC and Slavine, N and Söderström, Kaj and Sood, G and Sorensen, SP and Stankus, P and Stefanek, G and Steinberg, P and Stenlund, Evert and Sumbera, M and Svensson, T and Tsvetkov, A and Tykarski, L and Pijll, ECVD and Eijndhoven, NV and Nieuwenhuizen, GJV and Vinogradov, A and Viyogi, YP and Vodopianov, A and Voros, S and Wyslouch, B and Young, GR},
  issn         = {0375-9474},
  keyword      = {measured,nuclear reactions Pb-208(Pb-208,E=158 GeV/nucleon,inclusive photons direct and elliptic flow vs. centrality,X),deduced neutral pion flow features,transverse momentum,rapidity and},
  language     = {eng},
  number       = {1-2},
  pages        = {129--146},
  publisher    = {Elsevier},
  series       = {Nuclear Physics, Section A},
  title        = {Centrality and transverse momentum dependence of collective flow in 158 A GeV Pb+Pb collisions measured via inclusive photons},
  url          = {http://dx.doi.org/10.1016/j.nuclphysa.2005.08.004},
  volume       = {762},
  year         = {2005},
}