First Evidence of Directed Flow at 158 A GeV Pb + Pb Collisions in WA98 Experiment Conferences uri icon

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abstract

  • The first evidence of directed flow at 158 A GeV Pb + Pb collisions is observed using the Plastic Ball detector in WA98 experiment. The azimuthal angle of the total transverse energy, Φ_0, is determined for each event using the observed protons in the Plastic Ball. A clear azimuthal asymmetry of fragments is observed with respect to Φ_0. The degree of azimuthal asymmetry is found to be largest in mid-central collisions, which is consistent with the picture of the collective flow. The p_t spectra of particles measured in the mid-rapidity spectrometer has been studied in conjunction with the Plastic Ball, and different p_t slopes with respect to p_t for proton and π^+ are observed.

authors

  • Kurata, Mizuki
  • Aggarwal, MM
  • Agnihotri, A
  • Ahammed, Z
  • Angelis, ALS
  • Antonenko, V
  • Arefiev, V
  • Astakhov, V
  • Avdeitchikov, V
  • Awes, TC
  • Baba, PVKS
  • Badyal, SK
  • Baldine, A
  • Barabach, L
  • Barlag, C
  • Bathe, S
  • Batiounia, B
  • Bernier, T
  • Bhalla, KB
  • Bhatia, VS
  • Blume, C
  • Bock, D
  • Bock, R
  • Bohne, E-M
  • Bucher, D
  • Buijs, Adriaan
  • Buis, E-J
  • Büsching, H
  • Carlen, L
  • Chalyshev, V
  • Chattopadhyay, S
  • Chenawi, KE
  • Cherbatchev, R
  • Chujo, T
  • Claussen, A
  • Das, AC
  • Decowski, MP
  • Djordjadze, V
  • Donni, P
  • Doubovik, I
  • Majumdar, MR Dutta
  • Eliseev, S
  • Enosawa, K
  • Feldmann, H
  • Foka, P
  • Fokin, S
  • Frolov, V
  • Ganti, MS
  • Garpman, S
  • Gavrishchuk, O
  • Geurts, FJM
  • Ghosh, TK
  • Glasow, R
  • Guskov, B
  • Gustafsson, HA
  • Gutbrod, HH
  • Higuchi, R
  • Hrivnacova, I
  • Ippolitov, M
  • Kalechofsky, H
  • Kamermans, R
  • Kampert, K-H
  • Karadjev, K
  • Karpio, K
  • Kato, S
  • Kees, S
  • Kim, H
  • Kolb, BW
  • Kosarev, I
  • Koutcheryaev, I
  • Kugler, A
  • Kulinich, P
  • Kumar, V
  • Kurita, K
  • Kuzmin, N
  • Langbein, I
  • Lebedev, A
  • Lee, YY
  • Löhner, H
  • Mahapatra, DP
  • Manko, V
  • Martin, M
  • Maximov, A
  • Mehdiyev, R
  • Mgebrichvili, G
  • Miake, Y
  • Mikhalev, D
  • Mishra, GC
  • Miyamoto, Y
  • Morrison, D
  • Mukhopadhyay, DS
  • Myalkovski, V
  • Naef, H
  • Nandi, BK
  • Nayak, SK
  • Nayak, TK
  • Neumaier, S
  • Nianine, A
  • Nikitine, V
  • Nikolaev, S
  • Nishimura, S
  • Nomokonov, P
  • Nystrand, J
  • Obenshain, FE
  • Oskarsson, A
  • Otterlund, I
  • Pachr, M
  • Parfenov, A
  • Pavliouk, S
  • Peitzmann, T
  • Petracek, V
  • Plasil, F
  • Purschke, ML
  • Raeven, B
  • Rak, J
  • Raniwala, S
  • Ramamurthy, VS
  • Rao, NK
  • Retiere, F
  • Reygers, K
  • Roland, G
  • Rosselet, L
  • Roufanov, I
  • Rubio, JM
  • Sako, H
  • Sambyal, SS
  • Santo, R
  • Sato, S
  • Schlagheck, H
  • Schmidt, H-R
  • Shabratova, G
  • Sibiriak, I
  • Siemiarczuk, T
  • Sinha, BC
  • Slavine, N
  • Söderström, K
  • Solomey, N
  • Sørensen, SP
  • Stankus, P
  • Stefanek, G
  • Steinberg, P
  • Stenlund, E
  • Stüken, D
  • Sumbera, M
  • Svensson, T
  • Trivedi, MD
  • Tsvetkov, A
  • Twenhöfel, C
  • Tykarski, L
  • Urbahn, J
  • Eijndhoven, NV
  • Heeringen, WHV
  • Nieuwenhuizen, GJV
  • Vinogradov, A
  • Viyogi, YP
  • Vodopianov, A
  • Vörös, S
  • Vos, MA
  • Wyslouch, B
  • Yagi, K
  • Yokota, Y
  • Young, GR

publication date

  • 1997