Azimuthal anisotropy in S + Au reactions at 200 a GeV

M. M. Aggarwal, A. L S Angelis, V. Antonenko, T. C. Awes, S. K. Badyal, C. Barlag, K. B. Bhalla, V. S. Bhatia, C. Blume, D. Bock, E. M. Bohne, D. Bucher, A. Buijs, S. Chattopadhyay, A. Claussen, G. Clewing, A. C. Das, Devanand, P. Dönni, E. Durieux & 71 others M. R. Dutta Majumdar, P. Foka, S. Fokin, M. S. Ganti, S. Garpman, F. Geurts, T. K. Ghosh, R. Glasow, S. K. Gupta, H. Å Gustafsson, H. H. Gutbrod, M. Hartig, Xiaochun He, G. Hölker, M. Ippolitov, M. Izycki, S. Kachroo, H. Kalechofsky, R. Kamermans, K. H. Kampert, K. Karadjev, B. W. Kolb, I. Langbein, J. Langheinrich, A. Lebedev, H. Löhner, S. Loknathan, V. Manko, M. Martin, I. S. Mittra, S. Mookerjee, H. Naef, S. K. Nayak, T. K. Nayak, S. Nikolaev, J. Nystrand, F. E. Obenshain, A. Oskarsson, I. Otterlund, T. Peitzmann, F. Plasil, M. Purschke, S. Raniwala, N. K. Rao, L. Rosselet, B. Roters, J. M. Rubio, S. Saini, S. Sambyal, R. Santo, H. R. Schmidt, T. Siemiarczuk, R. H. Siemssen, B. C. Sinha, S. Slegt, K. Söderström, N. Solomey, S. P. Sorensen, G. Stefanek, P. Steinhaeuser, E. Stenlund, A. Ster, D. Stüken, M. D. Trivedi, C. Twenhoefel, N. Van Eijndhoven, W. H. Van Heeringen, A. Vinogradov, Y. P. Viyogi, S. Weber, G. R. Young

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Azimuthal correlations of photons produced at mid-rapidity in 200 A GeV S + Au collisions have been studied using a preshower photon multiplicity detector in the WA93 experiment. The Fourier expansion method has been employed to estimate the event plane via the anisotropy of the event as a function of centrality. The event plane correlation technique has been used to determine the true event anisotropy, beyond the anisotropy which arises due to finite multiplicity. The VENUS event generator with rescattering and proper simulation of the detector response can explain only a portion of the observed anisotropy. The residual anisotropy is found to be of the order of 5% for semi-central collisions. This suggests that directed collective flow of the produced particles is present at SPS energies.

Original languageEnglish
Pages (from-to)390-396
Number of pages7
JournalPhysics Letters B
Volume403
Issue number3-4
Publication statusPublished - Jun 26 1997

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anisotropy
collisions
detectors
photons
generators
expansion
estimates
simulation
energy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Aggarwal, M. M., Angelis, A. L. S., Antonenko, V., Awes, T. C., Badyal, S. K., Barlag, C., ... Young, G. R. (1997). Azimuthal anisotropy in S + Au reactions at 200 a GeV. Physics Letters B, 403(3-4), 390-396.

Azimuthal anisotropy in S + Au reactions at 200 a GeV. / Aggarwal, M. M.; Angelis, A. L S; Antonenko, V.; Awes, T. C.; Badyal, S. K.; Barlag, C.; Bhalla, K. B.; Bhatia, V. S.; Blume, C.; Bock, D.; Bohne, E. M.; Bucher, D.; Buijs, A.; Chattopadhyay, S.; Claussen, A.; Clewing, G.; Das, A. C.; Devanand; Dönni, P.; Durieux, E.; Dutta Majumdar, M. R.; Foka, P.; Fokin, S.; Ganti, M. S.; Garpman, S.; Geurts, F.; Ghosh, T. K.; Glasow, R.; Gupta, S. K.; Gustafsson, H. Å; Gutbrod, H. H.; Hartig, M.; He, Xiaochun; Hölker, G.; Ippolitov, M.; Izycki, M.; Kachroo, S.; Kalechofsky, H.; Kamermans, R.; Kampert, K. H.; Karadjev, K.; Kolb, B. W.; Langbein, I.; Langheinrich, J.; Lebedev, A.; Löhner, H.; Loknathan, S.; Manko, V.; Martin, M.; Mittra, I. S.; Mookerjee, S.; Naef, H.; Nayak, S. K.; Nayak, T. K.; Nikolaev, S.; Nystrand, J.; Obenshain, F. E.; Oskarsson, A.; Otterlund, I.; Peitzmann, T.; Plasil, F.; Purschke, M.; Raniwala, S.; Rao, N. K.; Rosselet, L.; Roters, B.; Rubio, J. M.; Saini, S.; Sambyal, S.; Santo, R.; Schmidt, H. R.; Siemiarczuk, T.; Siemssen, R. H.; Sinha, B. C.; Slegt, S.; Söderström, K.; Solomey, N.; Sorensen, S. P.; Stefanek, G.; Steinhaeuser, P.; Stenlund, E.; Ster, A.; Stüken, D.; Trivedi, M. D.; Twenhoefel, C.; Van Eijndhoven, N.; Van Heeringen, W. H.; Vinogradov, A.; Viyogi, Y. P.; Weber, S.; Young, G. R.

In: Physics Letters B, Vol. 403, No. 3-4, 26.06.1997, p. 390-396.

Research output: Contribution to journalArticle

Aggarwal, MM, Angelis, ALS, Antonenko, V, Awes, TC, Badyal, SK, Barlag, C, Bhalla, KB, Bhatia, VS, Blume, C, Bock, D, Bohne, EM, Bucher, D, Buijs, A, Chattopadhyay, S, Claussen, A, Clewing, G, Das, AC, Devanand, Dönni, P, Durieux, E, Dutta Majumdar, MR, Foka, P, Fokin, S, Ganti, MS, Garpman, S, Geurts, F, Ghosh, TK, Glasow, R, Gupta, SK, Gustafsson, HÅ, Gutbrod, HH, Hartig, M, He, X, Hölker, G, Ippolitov, M, Izycki, M, Kachroo, S, Kalechofsky, H, Kamermans, R, Kampert, KH, Karadjev, K, Kolb, BW, Langbein, I, Langheinrich, J, Lebedev, A, Löhner, H, Loknathan, S, Manko, V, Martin, M, Mittra, IS, Mookerjee, S, Naef, H, Nayak, SK, Nayak, TK, Nikolaev, S, Nystrand, J, Obenshain, FE, Oskarsson, A, Otterlund, I, Peitzmann, T, Plasil, F, Purschke, M, Raniwala, S, Rao, NK, Rosselet, L, Roters, B, Rubio, JM, Saini, S, Sambyal, S, Santo, R, Schmidt, HR, Siemiarczuk, T, Siemssen, RH, Sinha, BC, Slegt, S, Söderström, K, Solomey, N, Sorensen, SP, Stefanek, G, Steinhaeuser, P, Stenlund, E, Ster, A, Stüken, D, Trivedi, MD, Twenhoefel, C, Van Eijndhoven, N, Van Heeringen, WH, Vinogradov, A, Viyogi, YP, Weber, S & Young, GR 1997, 'Azimuthal anisotropy in S + Au reactions at 200 a GeV', Physics Letters B, vol. 403, no. 3-4, pp. 390-396.
Aggarwal MM, Angelis ALS, Antonenko V, Awes TC, Badyal SK, Barlag C et al. Azimuthal anisotropy in S + Au reactions at 200 a GeV. Physics Letters B. 1997 Jun 26;403(3-4):390-396.
Aggarwal, M. M. ; Angelis, A. L S ; Antonenko, V. ; Awes, T. C. ; Badyal, S. K. ; Barlag, C. ; Bhalla, K. B. ; Bhatia, V. S. ; Blume, C. ; Bock, D. ; Bohne, E. M. ; Bucher, D. ; Buijs, A. ; Chattopadhyay, S. ; Claussen, A. ; Clewing, G. ; Das, A. C. ; Devanand ; Dönni, P. ; Durieux, E. ; Dutta Majumdar, M. R. ; Foka, P. ; Fokin, S. ; Ganti, M. S. ; Garpman, S. ; Geurts, F. ; Ghosh, T. K. ; Glasow, R. ; Gupta, S. K. ; Gustafsson, H. Å ; Gutbrod, H. H. ; Hartig, M. ; He, Xiaochun ; Hölker, G. ; Ippolitov, M. ; Izycki, M. ; Kachroo, S. ; Kalechofsky, H. ; Kamermans, R. ; Kampert, K. H. ; Karadjev, K. ; Kolb, B. W. ; Langbein, I. ; Langheinrich, J. ; Lebedev, A. ; Löhner, H. ; Loknathan, S. ; Manko, V. ; Martin, M. ; Mittra, I. S. ; Mookerjee, S. ; Naef, H. ; Nayak, S. K. ; Nayak, T. K. ; Nikolaev, S. ; Nystrand, J. ; Obenshain, F. E. ; Oskarsson, A. ; Otterlund, I. ; Peitzmann, T. ; Plasil, F. ; Purschke, M. ; Raniwala, S. ; Rao, N. K. ; Rosselet, L. ; Roters, B. ; Rubio, J. M. ; Saini, S. ; Sambyal, S. ; Santo, R. ; Schmidt, H. R. ; Siemiarczuk, T. ; Siemssen, R. H. ; Sinha, B. C. ; Slegt, S. ; Söderström, K. ; Solomey, N. ; Sorensen, S. P. ; Stefanek, G. ; Steinhaeuser, P. ; Stenlund, E. ; Ster, A. ; Stüken, D. ; Trivedi, M. D. ; Twenhoefel, C. ; Van Eijndhoven, N. ; Van Heeringen, W. H. ; Vinogradov, A. ; Viyogi, Y. P. ; Weber, S. ; Young, G. R. / Azimuthal anisotropy in S + Au reactions at 200 a GeV. In: Physics Letters B. 1997 ; Vol. 403, No. 3-4. pp. 390-396.
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abstract = "Azimuthal correlations of photons produced at mid-rapidity in 200 A GeV S + Au collisions have been studied using a preshower photon multiplicity detector in the WA93 experiment. The Fourier expansion method has been employed to estimate the event plane via the anisotropy of the event as a function of centrality. The event plane correlation technique has been used to determine the true event anisotropy, beyond the anisotropy which arises due to finite multiplicity. The VENUS event generator with rescattering and proper simulation of the detector response can explain only a portion of the observed anisotropy. The residual anisotropy is found to be of the order of 5{\%} for semi-central collisions. This suggests that directed collective flow of the produced particles is present at SPS energies.",
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TY - JOUR

T1 - Azimuthal anisotropy in S + Au reactions at 200 a GeV

AU - Aggarwal, M. M.

AU - Angelis, A. L S

AU - Antonenko, V.

AU - Awes, T. C.

AU - Badyal, S. K.

AU - Barlag, C.

AU - Bhalla, K. B.

AU - Bhatia, V. S.

AU - Blume, C.

AU - Bock, D.

AU - Bohne, E. M.

AU - Bucher, D.

AU - Buijs, A.

AU - Chattopadhyay, S.

AU - Claussen, A.

AU - Clewing, G.

AU - Das, A. C.

AU - Devanand,

AU - Dönni, P.

AU - Durieux, E.

AU - Dutta Majumdar, M. R.

AU - Foka, P.

AU - Fokin, S.

AU - Ganti, M. S.

AU - Garpman, S.

AU - Geurts, F.

AU - Ghosh, T. K.

AU - Glasow, R.

AU - Gupta, S. K.

AU - Gustafsson, H. Å

AU - Gutbrod, H. H.

AU - Hartig, M.

AU - He, Xiaochun

AU - Hölker, G.

AU - Ippolitov, M.

AU - Izycki, M.

AU - Kachroo, S.

AU - Kalechofsky, H.

AU - Kamermans, R.

AU - Kampert, K. H.

AU - Karadjev, K.

AU - Kolb, B. W.

AU - Langbein, I.

AU - Langheinrich, J.

AU - Lebedev, A.

AU - Löhner, H.

AU - Loknathan, S.

AU - Manko, V.

AU - Martin, M.

AU - Mittra, I. S.

AU - Mookerjee, S.

AU - Naef, H.

AU - Nayak, S. K.

AU - Nayak, T. K.

AU - Nikolaev, S.

AU - Nystrand, J.

AU - Obenshain, F. E.

AU - Oskarsson, A.

AU - Otterlund, I.

AU - Peitzmann, T.

AU - Plasil, F.

AU - Purschke, M.

AU - Raniwala, S.

AU - Rao, N. K.

AU - Rosselet, L.

AU - Roters, B.

AU - Rubio, J. M.

AU - Saini, S.

AU - Sambyal, S.

AU - Santo, R.

AU - Schmidt, H. R.

AU - Siemiarczuk, T.

AU - Siemssen, R. H.

AU - Sinha, B. C.

AU - Slegt, S.

AU - Söderström, K.

AU - Solomey, N.

AU - Sorensen, S. P.

AU - Stefanek, G.

AU - Steinhaeuser, P.

AU - Stenlund, E.

AU - Ster, A.

AU - Stüken, D.

AU - Trivedi, M. D.

AU - Twenhoefel, C.

AU - Van Eijndhoven, N.

AU - Van Heeringen, W. H.

AU - Vinogradov, A.

AU - Viyogi, Y. P.

AU - Weber, S.

AU - Young, G. R.

PY - 1997/6/26

Y1 - 1997/6/26

N2 - Azimuthal correlations of photons produced at mid-rapidity in 200 A GeV S + Au collisions have been studied using a preshower photon multiplicity detector in the WA93 experiment. The Fourier expansion method has been employed to estimate the event plane via the anisotropy of the event as a function of centrality. The event plane correlation technique has been used to determine the true event anisotropy, beyond the anisotropy which arises due to finite multiplicity. The VENUS event generator with rescattering and proper simulation of the detector response can explain only a portion of the observed anisotropy. The residual anisotropy is found to be of the order of 5% for semi-central collisions. This suggests that directed collective flow of the produced particles is present at SPS energies.

AB - Azimuthal correlations of photons produced at mid-rapidity in 200 A GeV S + Au collisions have been studied using a preshower photon multiplicity detector in the WA93 experiment. The Fourier expansion method has been employed to estimate the event plane via the anisotropy of the event as a function of centrality. The event plane correlation technique has been used to determine the true event anisotropy, beyond the anisotropy which arises due to finite multiplicity. The VENUS event generator with rescattering and proper simulation of the detector response can explain only a portion of the observed anisotropy. The residual anisotropy is found to be of the order of 5% for semi-central collisions. This suggests that directed collective flow of the produced particles is present at SPS energies.

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M3 - Article

VL - 403

SP - 390

EP - 396

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 3-4

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