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1. Azimuthal anisotropy of photon and charged particle emissionin 208Pb + 208Pb collisions at 158 ̇ A GeV/c

Author: Aggarwal, MM, Ahammed, Z, Angelis, ALS, Antonenko, V, Arefiev, V, Astakhov, V, Avdeitchikov, V, Awes, TC, Baba, PVKS, Badyal, SK, Bathe, S, Batiounia, B, Bernier, T, Bhatia, VS, Blume, C, Bucher, D, Büsching, H, Carlén, L, Chattopadhyay, S, Decowski, MP, Delagrange, H, Donni, P, Dutta Majumdar, MR, Dubey, AK, El Chenawi, K, Enosawa, K, Fokin, S, Frolov, V, Ganti, MS, Garpman, S, Gavrishchuk, O, Geurts, FJM, Ghosh, TK, Glasow, R, Gupta, R, Guskov, B, Gustafsson, HA, Gutbrod, HH, Hrivnacova, I, Ippolitov, M, Kalechofsky, H, Kamermans, R, Karadjev, K, Karpio, K, Kolb, BW, Kosarev, I, Koutcheryaev, I, Kugler, A, Kulinich, P, Kurata, M, Lebedev, A, Löhner, H, Luquin, L, Mahapatra, DP, Manko, V, Martin, M, Martínez, G, Maximov, A, Miake, Y, Mishra, GC, Mohanty, B, Mora, MJ, Morrison, D, Moukhanova, T, Mukhopadhyay, DS, Naef, H, Nandi, BK, Nayak, SK, Nayak, TK, Nianine, A, Nikitine, V, Nikolaev, S, Nilsson, P, Nishimura, S, Nomokonov, P, Nystrand, J, Oskarsson, A, Otterlund, I, Peitzmann, T, Peressounko, D, Petracek, V, Phatak, SC, Pinganaud, W, Plasil, F, Purschke, ML, Rak, J, Raniwala, R, Raniwala, S, Rao, NK, Retiere, F, Reygers, K, Roland, G, Rosselet, L, Roufanov, I, Roy, C, Rubio, JM, Sambyal, SS, Santo, R, Sato, S, and Schlagheck, H
Subjects: Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The azimuthal distributions of photons and charged particles with respect to the event plane are investigated as a function of centrality in 208Pb + 208Pb collisions at 158 · A GeV/c in the WA98 experiment at the CERN SPS. The anisotropy of the azimuthal distributions is characterized using a Fourier analysis. For both the photon and charged particle distributions the first two Fourier coefficients are observed to decrease with increasing centrality. The observed anisotropies of the photon distributions compare well with the expectations from the charged particle measurements for all centralities. © Springer-Verlag / Società di Fisica 2005.
Published: 2005

2. Three-pion interferometry results from central Pb + Pb collisions at 158 A GeV/c

Author: Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.-M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Bosing, C., Knoche, S., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Mora, M.-J., Morrison, D., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Naya, T.K., Neumaier, S., Nianine, A., and Nikitine, V.
Subjects: Nuclear physics and radiation physics
Published: 2000

3. Central Pb+Pb collisions at 158 A GeV/c studied by π-π- interferometry

Author: Aggarwal, MM, Agnihotri, A, Ahammed, Z, Angelis, ALS, Antonenko, V, Arefiev, V, Astakhov, V, Avdeitchikov, V, Awes, TC, Baba, PVKS, Badyal, SK, Barlag, C, Bathe, S, Batiounia, B, Bernier, T, Bhalla, KB, Bhatia, VS, Blume, C, Bock, R, Bohne, EM, Böröcz, Z, Bucher, D, Buijs, A, Büsching, H, Carlen, L, Chalyshev, V, Chattopadhyay, S, Cherbatchev, R, Chujo, T, Claussen, A, Das, AC, Decowski, MP, Delagrange, H, Djordjadze, V, Donni, P, Doubovik, I, Dutt, S, Dutta Majumdar, MR, El Chenawi, K, Eliseev, S, Enosawa, K, Foka, P, Fokin, S, Ganti, MS, Garpman, S, Gavrishchuk, O, Geurts, FJM, Ghosh, TK, Glasow, R, Gupta, SK, Guskov, B, Gustafsson, HA, Gutbrod, HH, Higuchi, R, Hrivnacova, I, Ippolitov, M, Kalechofsky, H, Kamermans, R, Kampert, KH, Karadjev, K, Karpio, K, Kato, S, Kees, S, Klein-Bösing, C, Knoche, S, Kolb, BW, Kosarev, I, Koutcheryaev, I, Krümpel, T, Kugler, A, Kulinich, P, Kurata, M, Kurita, K, Kuzmin, N, Langbein, I, Lebedev, A, Lee, YY, Löhner, H, Luquin, L, Mahapatra, DP, Manko, V, Martin, M, Martínez, G, Maximov, A, Mgebrichvili, G, Miake, Y, Mir, MF, Mishra, GC, Miyamoto, Y, Mohanty, B, Morrison, D, Mukhopadhyay, DS, Naef, H, Nandi, BK, Nayak, SK, Nayak, TK, Neumaier, S, Nianine, A, Nikitine, V, and Nikolaev, S
Subjects: Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: Two-particle correlations have been measured for identified π- from central 158 A GeV Pb+Pb collisions and fitted radii of about 7 fm in all dimensions have been obtained. A multi-dimensional study of the radii as a function of kT is presented, including a full correction for the resolution effects of the apparatus. The cross term R2out-long of the standard fit in the Longitudinally CoMoving System (LCMS) and the vL parameter of the generalised Yano-Koonin fit are compatible with 0, suggesting that the source undergoes a boost invariant expansion. The shapes of the correlation functions in Qinv and Qspace = √Q2x + Q2y + Q2z have been analyzed in detail. They are not Gaussian but better represented by exponentials. As a consequence fitting Gaussians to these correlation functions may produce different radii depending on the acceptance of the experimental setup used for the measurement.
Published: 2000

4. The 5N neutral particle beamline of the U-70 accelerator (Institute for High Energy Physics)

Author: Aleev, A. N., Arefiev, V. A., Aseev, A. A., Basha, Yu. G., Balandin, V. P., Bugorsky, A. P., Grigalashvili, T. S., Guskov, B. N., Zhuravlev, A. A., Zapolsky, V. N., Zinchenko, A. I., Ivanchenko, I. M., Karpenko, N. N., Kapishin, M. N., Kekelidze, V. D., Kirillov, D. A., Kosarev, I. G., Kuzmin, N. A., Likhachev, M. F., Ljubimov, A. L., Madigozhin, D. T., Maximov, A. N., Molokanova, N. A., Morozov, A. N., Novoskoltsev, F. N., Potrebenikov, Yu. K., Petukhov, Yu. P., Simonov, V. E., Spaskov, V. N., Tatishvili, G. T., Hristov, P. Z., Yudin, I. P., and EXCHARM Collaboration
Published: 2009
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5. Pion freeze-out time in Pb+Pb collisions at 158 AGeV/c studied via π-/π+ and K-/K+ ratios

Author: Aggarwal, M.M., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Büsching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Dutta Majumdar, M.R., El Chenawi, K., Dubey, A.K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., Å.Gustafsson, H., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Löhner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martínez, G., Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.-J., Morrison, D., Mukhanova, T., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Pavliouk, S., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S.C., Pinganaud, W., Plasil, F., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Söderström, K., Sood, G., Sørensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., v. d. Pijll, E.C., v. Eijndhoven, N., v. Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Vörös, S., Wysłouch, B., Young, G.R., and The WA98 Collaboration
Published: 2006
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6. Multiplicity distributions and charged-neutral fluctuations

Author: Nayak, Tapan K, 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, R, Bohne, E-M, Bucher, D, Buijs, A, 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, Dubey, AK, Dutta Majumdar, MR, Eliseev, S, Enosawa, K, Feldmann, H, Foka, P, Fokin, S, Frolov, V, Ganti, MS, Garpman, S, Gavrishchuk, O, Geurts, FJM, Ghosh, TK, Glasow, R, Gupta, SK, Guskov, B, Gustafsson, HA, Gutbrod, HH, Higuchi, R, Hrivanacova, 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, Kurata, M, 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, Mohanty, B, Morrison, D, Mukhopadhyay, DS, Myalkovski, V, Naef, H, Nandi, BK, Nayak, SK, Nayak, TK, Neumaier, S, Nianine, A, Nikitine, V, Nikolaev, S, Nishimura, S, Nomokov, 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, R, Raniwala, S, Ramamurthy, VS, Rao, NK, Retiere, F, Reygers, K, Roland, G, Rosselet, L, Roufanov, I, Rubio, JM, 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, Sood, G, 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, and Young, GR
Published: 2001
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7. Diffractive dissociation reaction np → Λ0K0p for incident neutron momenta between 30 and 70 GeV/c: BIS-2 collaboration

Author: Smižanská, M., Hladký, J., Novák, M., Vecko, M., Aleev, A. N., Arefiev, V. A., Balandin, V. P., Berdyshev, V. K., Birulev, V. K., Chvyrov, A. S., Evsikov, I. I., Grigalashvili, T. S., Guskov, B. N., Ivanchenko, I. M., Kapishin, M. N., Karpenko, N. N., Kirillov, D. A., Kosarev, I. G., Kuzmin, N. A., Likhachev, M. F., Lyubimov, A. L., Maksimov, A. N., Moisenz, P. V., Morozov, A. N., Palchik, V. V., Pose, A. V., Prokeš, A., Silvestrov, L. V., Simonov, V. E., Slepets, L. A., Takhtamyshev, G. G., Vlasov, N. V., Hiller, K., Klabun, Yu., Nowak, H., Nowak, S., Rysek, H. E., Belousov, A. S., Devitsin, E. G., Fomenko, A. M., Malinovski, E. I., Pavlovskaya, V. V., Potashov, S. Yu., Rusakov, S. V., Smirnov, P. A., Soloviev, Yu. V., Shtarkov, L. N., Terkulov, A. R., Vazdik, Ya. A., Voichishin, M. N., Zatertyaev, M. V., Chudakov, E. A., Progulova, T. B., Zayachky, V. J., Burilkov, D. T., Krastev, V. R., Markov, P. K., Sultanov, G. G., Todorov, P. T., Trayanov, R. K., Cholakov, V. D., Abashidze, L. I., Abesalashvili, L. N., Amaglobeli, N. S., Chargeishvili, M. S., Dzhordzhadze, V. P., Kadagidze, N. O., Kekelidze, V. D., Kvatadze, R. A., Lomidze, N. L., Melitauri, G. V., Nikobadze, G. I., Pitskchelauri, T. G., Tatashvili, G. T., Shanidze, R. G., Chasnikov, I. Ya., Kamburian, A. F., Loktionov, A. A., Nazarenko, V. D., Potrebenikov, Yu. K., Sliusareva, V. B., Skorobogatova, V. I., Pazonyi, J., Veres, I., Zalan, P., and Petrov, M. V.
Published: 1990
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8. Transverse mass distributions of neutral pions from 208Pb-induced reactions at 158 A GeV

Author: Aggarwal, M.M., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Dutta Majumdar, M.R., El Chenawi, K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lohner, H., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.J., Morrison, Douglas R.O., Mukhanova, T., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Plasil, F., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Rao, N.K., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., Van den Pijll, E.C., Van Eijndhoven, N., Van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A.S., Voros, S., Wyslouch, B., Young, G.R., and KVI - Center for Advanced Radiation Technology
Subjects: Physics and Astronomy (miscellaneous), ENERGIES, FOS: Physical sciences, PP, 01 natural sciences, Spectral line, CROSS-SECTIONS, Nuclear physics, Pion, 0103 physical sciences, CERN, SPECTRA, Rapidity, NUCLEAR COLLISIONS, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Nuclear Physics, Physics, Range (particle radiation), 010308 nuclear & particles physics, 158A GEV, 200 AGEV, MOMENTUM, MODEL, Cover (topology), Transverse mass, Impact parameter
Abstract: Results on transverse mass spectra of neutral pions measured at central rapidity are presented for impact parameter selected 158$\cdot A$ GeV Pb + Pb, and Pb + Nb collisions. The distributions cover the range $0.5 \mathrm{GeV}/c^{2} \le m_{T} - m_{0} \le 4 \mathrm{GeV}/c^{2}$. The change of the spectral shape with centrality is studied in detail. In going from peripheral to medium central collisions there is a nuclear enhancement increasing with transverse mass similar to the well known Cronin effect, while for very central collisions this enhancement appears to be weaker than expected., Comment: 11 pages, 15 figures, revised version accepted for publication in EUR.PHYS.J. C
Published: 2002
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9. Central Pb+Pb collisions at 158 A GeV/c studied by π−π− interferometry

Author: Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Boesing, Christian, Knoche, S., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, M.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Morrison, Douglas R.O., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., von Poblotzki, U., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., van de Pijll, E.C., van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A.S., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Research unit Nuclear & Hadron Physics
Subjects: Particle physics, Physics and Astronomy (miscellaneous), Gaussian, FOS: Physical sciences, HEAVY-ION COLLISIONS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), symbols.namesake, TRACKING, Pion, SYSTEMS, Invariant (mathematics), Engineering (miscellaneous), MULTISTEP AVALANCHE CHAMBERS, PION INTERFEROMETRY, Physics, Resolution (electron density), Function (mathematics), 2-PION CORRELATIONS, PERFORMANCE, READOUT, Exponential function, Interferometry, Cross term, symbols, PB+PB COLLISIONS, Particle Physics - Experiment
Abstract: Two-particle correlations have been measured for identified negative pions from central 158 AGeV Pb+Pb collisions and fitted radii of about 7 fm in all dimensions have been obtained. A multi-dimensional study of the radii as a function of kT is presented, including a full correction for the resolution effects of the apparatus. The cross term Rout-long of the standard fit in the Longitudinally CoMoving System (LCMS) and the vl parameter of the generalised Yano-Koonin fit are compatible with 0, suggesting that the source undergoes a boost invariant expansion. The shapes of the correlation functions in Qinv and Qspace have been analyzed in detail. They are not Gaussian but better represented by exponentials. As a consequence, fitting Gaussians to these correlation functions may produce different radii depending on the acceptance of the experimental setup used for the measurement., 13 pages including 10 figures
Published: 2000

10. Systematics of inclusive photon production in 158·A GeV Pb induced reactions on Ni, Nb, and Pb targets

Author: Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. -M, Böröcz, Z., Bucher, D., Buijs, A., Büsching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Michal Patrick Decowski, Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M. R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. -H, Karadjev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krümpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Löhner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinanaud, W., Purschke, M. L., Raeven, B., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. -R, Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Söderström, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stüken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Twenhöfel, C., Tykarski, L., Urbahn, J., Eijndhoven, N. V., Nieuwenhuizen, G. J. V., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Vörös, S., Wysluch, B., Yagi, K., Yokota, Y., and Young, G. R.
Subjects: Physics, Nuclear and High Energy Physics, Photon, FOS: Physical sciences, Photon yield, Power law, Nuclear physics, Transverse plane, Pseudorapidity, Exponent, Nuclear Experiment (nucl-ex), Multiplicity (chemistry), Nuclear Experiment, Nucleon, Nuclear Physics
Abstract: The multiplicity of inclusive photons has been measured on an event-by-event basis for 158 AGeV Pb induced reactions on Ni, Nb, and Pb targets. The systematics of the pseudorapidity densities at midrapidity (rho_max) and the width of the pseudorapidity distributions have been studied for varying centralities for these collisions. A power law fit to the photon yield as a function of the number of participating nucleons gives a value of 1.13+-0.03 for the exponent. The mean transverse momentum, , of photons determined from the ratio of the measured electromagnetic transverse energy and photon multiplicity, remains almost constant with increasing rho_max. Results are compared with model predictions., Comment: 16 pages including 4 figures
Published: 1999
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11. Production of the charmed baryon Λc+ in neutron-proton interactions: BIS-2 collaboration

Author: Vecko, M., Novák, M., Hladký, J., Krásová, J., Aleev, A. N., Arefiev, V. A., Balandin, V. P., Berdyshev, V. K., Birulev, V. K., Chvyrov, A. S., Evsikov, I. I., Grigalashvili, T. S., Guskov, B. N., Hiller, K., Ivanchenko, I. M., Kapishin, M. N., Karpenko, N. N., Kirillov, D. A., Kosarev, I. G., Krastev, V. R., Kuzmin, N. A., Likhachev, M. F., Lyubimov, A. L., Maksimov, A. N., Moisens, P. V., Morozov, A. N., Palchik, V. V., Pose, A. V., Prokeš, A., Silvestrov, L. V., Simonov, V. E., Slepets, L. A., Smižanská, M., Takhtamyshev, G. G., Vlasov, N. V., Klabun, Yu., Nowak, H., Nowak, S., Rysek, H. E., Pelousov, A. S., Devitsin, E. G., Fomenko, A. M., Malinovski, E. I., Pavlovskaya, V. V., Potashov, S. Yu., Rusakov, S. V., Smirnov, P. A., Soloviev, Yu. V., Shtarkov, L. N., Terkulov, A. R., Vazdik, Ya. A., Voichishin, M. N., Zavertyaev, M. V., Chudakov, E. A., Progulova, T. B., Zayachky, V. J., Burilkov, D. T., Markov, P. K., Sultanov, G. G., Todorov, P. T., Trayanov, R. K., Cholakov, V. D., Abashidze, L. I., Abesalashvili, L. N., Amaglobeli, N. S., Chargeishvili, M. S., Dzhordzhadze, V. P., Kadagidze, N. O., Kekelidze, V. D., Kvatadze, R. A., Lomidze, N. L., Melitauri, G. V., Nikobadze, G. I., Pitskchelauri, T. G., Tatashvili, G. T., Shanidze, R. G., Chasnikov, I. Ya., Kamburian, A. F., Loktionov, A. A., Nazarenko, V. D., Potrebenikov, Yu. K., Sliusareva, V. B., Skorobogatova, V. I., Pazonyi, J., Veress, I., Zalán, P., Balea, O., Ponta, T., and Petrov, M. V.
Published: 1989
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12. The small momentum transfer kLoC→KS0C regeneration at high energies

Author: Hladký, J., NĚmeček, S., Novák, M., Prokeš, A., Votruba, J., Albrecht, K. -F., Meyer, A., Sachwitz, M., Guskov, B. N., Krivokhizhin, V. G., Likhachev, M. F., Savin, I. A., and Vesztergombi, G.
Published: 1977
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13. Photon and eta production in p plus Pb and p plus C collisions at root(NN)-N-S=17.4 GeV

Author: Aggarwal, M. M., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Bathe, S., Batiounia, B., Baumann, C., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bucher, D., Buesching, H., Carlen, L., Chattopadhyay, S., Decowski, M. P., Delagrange, H., Donni, P., Majumdar, M. R. Dutta, El Chenawi, K., Dubey, A. K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Guskov, B., Gustafsson, H.A., Gutbrod, H. H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Loehner, H., Luquin, L., Mahapatra, D. P., Mankod, V., Martin, M., Martinez, G., Maximov, A., Miake, Y., Mishra, G. C., Mohanty, B., Mora, M. -J., Morrison, D., Mukhanova, T., Mukhopadhyay, D. S., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Pavliouk, S., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S. C., Pinganaud, W., Plasil, F., Purschke, M. L., Rak, J., Rammler, M., Raniwala, R., Raniwala, S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. -R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., v. d. Pijll, E. C., v. Eijndhoven, N., v. Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Voeroes, S., Wyslouch, B., Young, G. R., and KVI - Center for Advanced Radiation Technology
Subjects: NUCLEAR REACTIONS C, Pb(p, gamma), E at 160 GeV/c, deduced invariant photon yield vs transverse momentum, invariant eta-meson yield. Compared to Pb plus Pb results at similar, High Energy Physics::Experiment, HEAVY-ION COLLISIONS, Nuclear Experiment, measured relativistic reaction products, energy, QUARK-GLUON PLASMA, 200-GEV/C, MOMENTUM
Abstract: Measurements of direct photon production in p + Pb and p + C collisions at root(NN)-N-s = 17.4 GeV are presented. Upper limits on the direct photon yield as a function of p(T) are derived and compared to the results for Pb + Pb collisions at root(NN)-N-s = 17.3 GeV. The production of the eta meson, which is an important input to the direct photon signal extraction, has been determined in the eta -> 2 gamma channel for p + C collisions at root(NN)-N-s = 17.4 GeV. (c) 2012 Elsevier B.V. All rights reserved.
Published: 2013

14. Spark chambers for measurements of elastic backward scattering of positive pions by protons

Author: Guskov, B. N., Hladký, J., Ljubimov, A. L., Matjušin, A. T., Savin, I. A., and Vovenko, A. S.
Published: 1967
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15. Photon and Eta Production in p+Pb and p+C Collisions at $\sqrt{s_{NN}} = 17.4$ GeV

Author: Aggarwal, M.M., Ahammed, Z., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Baumann, C., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Majumdar, M.R.Dutta, El Chenawi, K., Dubey, A.K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Karadjev, K., Karpio, K., Kolb, B.W., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.J., Morrison, D., Mukhanova, T., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Pavliouk, S., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S.C., Pinganaud, W., Plasil, F., Purschke, M.L., Rak, J., Rammler, M., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., Pijll, E.C.v.d., Eijndhoven, N.v., Nieuwenhuizen, G.J.v., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Young, G.R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Physics - Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: Measurements of direct photon production in p+Pb and p+C collisions at $\sqrt{s_{NN}}$=17.4 GeV are presented. Upper limits on the direct photon yield as a function of p_T are derived and compared to the results for Pb+Pb collisions at $\sqrt{s_{NN}}$=17.3 GeV. The production of the @h meson, which is an important input to the direct photon signal extraction, has been determined in the @h->2@c channel for p+C collisions at $\sqrt{s_{NN}}$=17.4 GeV. Measurements of direct photon production in p + Pb and p + C collisions at sNN=17.4 GeV are presented. Upper limits on the direct photon yield as a function of pT are derived and compared to the results for Pb + Pb collisions at sNN=17.3 GeV . The production of the η meson, which is an important input to the direct photon signal extraction, has been determined in the η→2γ channel for p + C collisions at sNN=17.4 GeV . Measurements of direct photon production in p+Pb and p+C collisions at $\sqrt{s_\mathrm{NN}} = 17.4\mathrm{GeV}$ are presented. Upper limits on the direct photon yield as a function of $p_\mathrm{T}$ are derived and compared to the results for Pb+Pb collisions at $\sqrt{s_\mathrm{NN}} = 17.3$ GeV. The production of the $\eta$ meson, which is an important input to the direct photon signal extraction, has been determined in the $\eta \rightarrow 2\gamma$ channel for p+C collisions at $\sqrt{s_\mathrm{NN}} = 17.4\mathrm{GeV}$.
Published: 2011
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16. Event-by-event charged-neutral fluctuations in Pb+Pb collisions at 158 A~GeV

Author: Aggarwal, M.M., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Dutta Majumdar, M.R., El Chenawi, K., Dubey, A.K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, R., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Liu, H., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.J., Morrison, D., Moukhanova, T., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Pavliouk, S., Peitzmann, T., Peressounko, D., Petracek, V., Pinanaud, W., Plasil, F., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., van de Pijll, E.C., van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., and Young, G.R.
Subjects: FOS: Physical sciences, Nuclear Physics - Experiment, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: Charged particles and photons have been measured in central Pb+Pb collisions at 158 A GeV in a common ($\eta$ - $\phi$)-phase space region in the WA98 experiment at the CERN SPS. The measured distributions have been analyzed %using the sliding window method in order to quantify the frequency with which phase space regions of varying sizes have either small or large neutral pion fraction. The measured results are compared with VENUS model simulated events and with mixed events. Events with both large and small charged-neutral fluctuations are observed to occur more frequently than expected statistically, as deduced from mixed events, or as predicted by model simulations, with the difference becoming more prominent with decreasing size of the $\Delta\eta$ - $\Delta\phi$ region., Comment: six pages, six figures
Published: 2011

17. Suppression of high-p(T) neutral pion production in central Pb+Pb collisions at root s(NN)=17.3 GeV relative to p+C and p+Pb collisions

Author: Aggarwal, M. M., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Bathe, S., Batiounia, B., Baumann, C., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bucher, D., Buesching, H., Carlen, L., Chattopadhyay, S., Decowski, M. P., Delagrange, H., Donni, P., Majumdar, M. R. Dutta, El Chenawi, K., Dubey, A. K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Guskov, B., Gustafsson, H.A., Gutbrod, H. H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Loehner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Martinez, G., Maximov, A., Miake, Y., Mishra, G. C., Mohanty, B., Mora, M. -J., Morrison, D., Mukhanova, T., Mukhopadhyay, D. S., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Pavliouk, S., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S. C., Pinganaud, W., Plasil, F., Purschke, M. L., Rak, J., Rammler, M., Raniwala, R., Raniwala, S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. -R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soederstroem, K., Sood, G., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, Artem, Tykarski, L., Von der Pijll, E. C., Eijndhoven, N. V., Nieuwenhuizen, G. J. V., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Voeroes, S., Wyslouch, B., Young, G. R., and KVI - Center for Advanced Radiation Technology
Subjects: NUCLEUS-NUCLEUS COLLISIONS, 158-CENTER-DOT-A GEV, COLLABORATION, PERSPECTIVE, QUARK-GLUON PLASMA
Abstract: Neutral pion transverse momentum spectra were measured in p+C and p+Pb collisions at root s(NN) = 17.4 GeV at midrapidity (2.3 less than or similar to eta(lab)less than or similar to 3.0) over the range 0.7 less than or similar to p(T)less than or similar to 3.5 GeV/c. The spectra are compared to pi(0) spectra measured in Pb+Pb collisions at root s(NN) = 17.3 GeV in the same experiment. For a wide range of Pb+Pb centralities (N(part)less than or similar to 300), the yield of pi(0)'s with p(T)greater than or similar to 2 GeV/c is larger than or consistent with the p+C or p+Pb yields scaled with the number of nucleon-nucleon collisions (N(coll)), while for central Pb+Pb collisions with N(part)greater than or similar to 350, the pi(0) yield is suppressed.
Published: 2008

18. Suppression of High-pT Neutral Pions in Central Pb+Pb Collisions at sqrt{s_NN} = 17.3 GeV

Author: Aggarwal, M.M., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Baumann, C., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Dutta Majumdar, M.R., El Chenawi, K., Dubey, A.K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.J., Morrison, D., Mukhanova, T., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Pavliouk, S., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S.C., Pinganaud, W., Plasil, F., Purschke, M.L., Rak, J., Rammler, M., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., van de Pijll, E.C., van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., and Young, G.R.
Subjects: Nuclear Theory, High Energy Physics::Experiment, Nuclear Physics - Experiment, Nuclear Experiment
Abstract: Neutral pion transverse momentum spectra were measured in p+C and p+Pb collisions at sqrt{s_NN} = 17.4 GeV at mid-rapidity (2.3 2 GeV/c is consistent with the p+C or p+Pb yields scaled with the number of inelastic nucleon-nucleon collisions, while for central Pb+Pb collisions with N_{part} > 300 the pion yield is suppressed.
Published: 2007

19. Suppression of High-p_T Neutral Pion Production in Central Pb+Pb Collisions at sqrt{s_NN} = 17.3 GeV Relative to p+C and p+Pb Collisions

Author: Aggarwal, M.M., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Baumann, Cédric, Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Dutta Majumdar, M.R., El Chenawi, K., Dubey, A.K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., Gustafsson, H.A., H.Gutbrod, H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., W. Kolb, B., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez Garcia, Gines, Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.-J., Morrison, D., Mukhanova, T., S. Mukhopadhyay, D., Naef, H., K. Nandi, B., K. Nayak, S., K. Nayak, T., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Pavliouk, S., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S.C., Pinganaud, W., Plasil, F., Purschke, M.L., Rak, J., Rammler, M., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., Pijll, E.C.V.D., Eijndhoven, N.V., Nieuwenhuizen, G.J.V., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wys Louch, B., Young, G.R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: 13.87.Ce,13.87.Fh,25.75.-q,25.75.Dw, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Neutral pion transverse momentum spectra were measured in p+C and p+Pb collisions at sqrt{s_NN} = 17.4 GeV at mid-rapidity 2.3 < eta_lab < 3.0 over the range 0.7< p_T < 3.5 GeV/c. The spectra are compared to pi0 spectra measured in Pb+Pb collisions at sqrt{s_NN} = 17.3 GeV in the same experiment. For a wide range of Pb+Pb centralities (N_part < 300) the yield of pi0's with p_T > 2 GeV/c is larger than or consistent with the p+C or p+Pb yields scaled with the number of nucleon-nucleon collisions (N_coll), while for central Pb+Pb collisions with N_part > 350 the pi0 yield is suppressed., 5 pages, 4 figures
Published: 2007
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20. Azimuthal anisotropy of photon and charged particle emission in Pb-208+Pb-208 collisions at 158 center dot A GeV/c

Author: Aggarwal, M M, Ahammed, Z, Angelis, A L S, Antonenko, V, Arefiev, V, Astakhov, V, Avdeitchikov, V, Awes, TC, Baba, P V K S, Badyal, S K, Bathe, S, Batiounia, B, Bernier, T, Bhatia, V S, Blume, C, Bucher, D, Busching, H, Carlen, L, Chattopadhyay, S, Decowski, MP, Delagrange, H, Donni, P, Majumdar, MRD, Dubey, AK, El Chenawi, K, Enosawa, K, Fokin, S, Frolov, V, Ganti, MS, Garpman, S, Gavrishchuk, O, Geurts, FJM, Ghosh, TK, Glasow, R, Gupta, R, Guskov, B, Gustafsson, H.A., Gutbrod, HH, Hrivnacova, I., Ippolitov, M, Kalechofsky, H, Kamermans, R, Karadjev, K, Karpio, K, Kolb, BW, Kosarev, I., Koutcheryaev, I., Kugler, A, Kulinich, P, Löhner, H, KVI - Center for Advanced Radiation Technology, and Research unit Nuclear & Hadron Physics
Subjects: ELLIPTIC FLOW, RELATIVISTIC NUCLEAR COLLISIONS, COLLECTIVE FLOW, TRANSVERSE ENERGY, OF-PLANE EMISSION, HEAVY-ION COLLISIONS, Nuclear Experiment, CENTRALITY DEPENDENCE, MULTIPLICITY DETECTOR, PB+PB COLLISIONS, AU+AU COLLISIONS
Abstract: The azimuthal distributions of photons and charged particles with respect to the event plane are investigated as a function of centrality in Pb-208 + Pb-208 collisions at 158 (.) A GeV/c in the WA98 experiment at the CERN SPS. The anisotropy of the azimuthal distributions is characterized using a Fourier analysis. For both the photon and charged particle distributions the first two Fourier coefficients are observed to decrease with increasing centrality. The observed anisotropies of the photon distributions compare well with the expectations from the charged particle measurements for all centralities.
Published: 2005

21. Interferometry of direct photons in central 208Pb+208Pb collisions at 158A GeV

Author: Aggarwal, M M, Ahammed, Z, Angelis, A L S, Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T C, Baba, P V K S, Badyal, S K, Bathe, S, Batiounia, B, Bernier, T, Bhalla, K B, Bhatia, VS, Blume, C, Bucher, D, Busching, H, Carlen, L, Chattopadhyay, S, Decowski, MP, Delagrange, H, Donni, P, Majumdar, MRD, El Chenawi, K, Dubey, AK, Enosawa, K, Fokin, S, Frolov, V, Ganti, MS, Garpman, S, Gavrishchuk, O, Geurts, FJM, Ghosh, T K, Glasow, R, Guskov, B, Gustafsson, H.A., Gutbrod, HH, Hrivnacova, I., Ippolitov, M, Kalechofsky, H, Karadjev, K, Karpio, K, Kolb, BW, Kosarev, I., Koutcheryaev, I., Kugler, A, Kulinich, P, Kurata, M, Löhner, Herbert, KVI - Center for Advanced Radiation Technology, and Research unit Nuclear & Hadron Physics
Subjects: QUARK-GLUON DYNAMICS, PLASMA, HEAVY-ION COLLISIONS, Nuclear Experiment, PB+PB COLLISIONS
Abstract: Two-particle correlations of direct photons were measured in central (208Pb+208Pb collisions at 158A GeV. The invariant interferometric radii were extracted for 100
Published: 2004

22. Azimuthal Anisotropy of Photon and Charged Particle Emission in Pb+Pb Collisions at 158 A GeV/c

Author: Aggarwal, M.M., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Areev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Bernier, T., Bhatia, V.S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Dutta Majumdar, M.R., Dubey, A.K., El Chenawi, K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Karadjev, K., Karpio, K., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez Garcia, Gines, Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.-J., Morrison, D., Moukhanova, T., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S.C., Pinganaud, W., Plasil, F., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., Van Der Pijll, E.C., Van Eijndhoven, N., Van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Young, G.R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: FOS: Physical sciences, Nuclear Physics - Experiment, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract: The azimuthal distributions of photons and charged particles with respect to the event plane are investigated as a function of centrality in Pb + Pb collisions at 158 A GeV/c in the WA98 experiment at the CERN SPS. The anisotropy of the azimuthal distributions is characterized using a Fourier analysis. For both the photon and charged particle distributions the first two Fourier coefficients are observed to decrease with increasing centrality. The observed anisotropies of the photon distributions compare well with the expectations from the charged particle measurements for all centralities., 8 pages and 6 figures. The manuscript has undergone a major revision. The unwanted correlations were enhanced in the random subdivision method used in the earlier version. The present version uses the more established method of division into subevents separated in rapidity to minimise short range correlations. The observed results for charged particles are in agreement with results from the other experiments. The observed anisotropy in photons is explained using flow results of pions and the correlations arising due to the decay of the neutral pions
Published: 2004
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23. Interferometry of direct photons in central 208Pb + 208Pb collisions at 158A GeV

Author: Aggarwal, M.M., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Dutta Majumdar, M.R., El Chenawi, K., Dubey, A.K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., A.Gustafsson, H., H.Gutbrod, H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Karadjev, K., Karpio, K., W. Kolb, B., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez Garcia, Gines, Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.-J., Morrison, D., Moukhanova, T., S. Mukhopadhyay, D., Naef, H., K. Nandi, B., K. Nayak, S., K. Nayak, T., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S.C., Pinganaud, W., Plasil, F., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., Pijll, E.C.V.D., Eijndhoven, N.V., Nieuwenhuizen, G.J.V., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wys Louch, B., Young, G.R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Two-particle correlations of direct photons were measured in central 208Pb+208Pb collisions at 158A GeV. The invariant interferometric radii were extracted for 100K(T)300 MeV/c and compared to radii extracted from charged pion correlations. The yield of soft direct photons, K(T)300 MeV/c, was extracted from the correlation strength and compared to theoretical calculations.
Published: 2003
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24. Centrality dependence of charged-neutral particle fluctuations in 158A (GeVPb)-Pb-208+Pb-208 collisions

Author: Aggarwal, M M, Ahammed, Z, Angelis, A L S, Antonenko, V., Arefiev, V., Astakhov, V, Avdeitchikov, V., Awes, T C, Baba, P V K S, Badyal, S K, Bathe, S, Batiounia, B, Bernier, T, Bhalla, K B, Bhatia, VS, Blume, C, Bucher, D, Busching, H, Carlen, L, Chattopadhyay, S, Decowski, MP, Delagrange, H, Donni, P, Majumdar, MRD, El Chenawi, K, Dubey, AK, Enosawa, K, Fokin, S, Frolov, V, Ganti, MS, Garpman, S, Gavrishchuk, O, Geurts, FJM, Ghosh, TK, Glasow, R, Guskov, B, Gustafsson, H.A., Gutbrod, HH, Hrivnacova, I, Ippolitov, M, Kalechofsky, H, Karadjev, K, Karpio, K, Kolb, BW, Kosarev, I, Koutcheryaev, I, Kugler, A, Kulinich, P, Kurata, M, Lohner, H, and Research unit Nuclear & Hadron Physics
Subjects: PHYSICS, DOMAINS, SEARCH, DISORIENTED CHIRAL CONDENSATE, HADRONIC-INTERACTIONS, DETECTOR, QCD, DCC
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.
Published: 2003

25. One-, two-, and three-particle distributions from 158A GeV/c central Pb+Pb collisions

Author: Aggarwal, M M, Angelis, A L S, Antonenko, V, Arefiev, V, Astakhov, V, Avdeitchikov, V, Awes, TC, Baba, P V K S, Badyal, K, Bathe, S, Batiounia, B, Bernier, T, Bhalla, KB, Bhatia, VS, Blume, C, Bucher, D, Busching, H, Carlen, L, Chattopadhyay, S, Decowski, MP, Delagrange, H, Donni, P, Majumdar, MRD, El Chenawi, K, Enosawa, K, Fokin, S, Frolov, V, Ganti, MS, Garpman, S, Gavrishchuk, O, Geurts, FJM, Ghosh, T K, Glasow, R, Guskov, B, Gustafsson, H.A., Gutbrod, HH, Hrivnacova, I., Ippolitov, M, Kalechofsky, H, Kamermans, R, Karadjev, K, Karpio, K, Kolb, BW, Kosarev, I., Koutcheryaev, I., Kugler, A, Kulinich, P, Kurata, M, Lebedev, A, Lohner, H, Mahapatra, DP, Manko, V., Martin, M, Martinez, G, Maximov, A, Miake, Y, Mishra, GC, Mohanty, B, Mora, MJ, Morrison, D, Mukhanova, T, Mukhopadhyay, DS, Naef, H, Nandi, BK, Nayak, SK, Nayak, TK, Nianine, A, Nikitine, V, Nikolaev, S, Nilsson, P, Nishimura, S, Nomokonov, P, Nystrand, J, Oskarsson, A, Otterlund, I., Peitzmann, T, Peressounko, D, Petracek, V., Plasil, F, Purschke, ML, Rak, J, Raniwala, R, Raniwala, S, Rao, NK, Reygers, K, Roland, G, Rosselet, L, Roufanov, I, Rubio, JM, Sambyal, SS, Santo, R, Sato, S, Schlagheck, H, Schutz, Y, Shabratova, G, Shah, TH, Sibiriak, I., Siemiarczuk, T, Silvermyr, D, Sinha, BC, Slavine, N, Soderstrom, K, Sood, G, Sorensen, SP, Stankus, P, Stefanek, G, Steinberg, P, Stenlund, E, Sumbera, M, Svensson, T, Tsvetkov, A., Tykarski, L, v d Pijll, EC, v Eijndhoven, N, v Nieuwenhuizen, GJ, Vinogradov, A, Viyogi, YP, Vodopianov, A, Voros, S, Wyslouch, B, Young, GR, and Research unit Nuclear & Hadron Physics
Subjects: TWISS CORRELATION RADII, Nuclear Theory, 3-PION INTERFEROMETRY, MULTISTEP AVALANCHE CHAMBER, PHASE-SPACE DENSITY, NUCLEAR COLLISIONS, HEAVY-ION COLLISIONS, 2-PION CORRELATIONS, PERFORMANCE, Nuclear Experiment, PLUS PB COLLISIONS, PION INTERFEROMETRY
Abstract: Several hadronic observables have been studied in central 158A GeV Pb+Pb collisions using data measured by the WA98 experiment at CERN: single pi(-) and K- production, as well as two- and three-pion interferometry. The Wiedemann-Heinz hydrodynamical model has been fitted to the pion spectrum, giving an estimate of the temperature and transverse flow velocity. Bose-Einstein correlations between two identified pi(-) have been analyzed as a function of k(T), using two different parametrizations. The results indicate that the source does not have a strictly boost invariant expansion or spend time in a long-lived intermediate phase. A comparison between data and a hydrodynamical based simulation shows very good agreement for the radii parameters as a function of k(T). The pion phase-space density at freeze-out has been measured, and agrees well with the Tomasik-Heinz model. A large pion chemical potential close to the condensation limit of m(pi) seems to be excluded. The three-pion Bose-Einstein interferometry shows a substantial contribution of the genuine three-pion correlation, but not quite as large as expected for a fully chaotic and symmetric source.
Published: 2003

26. One-, Two- and Three-Particle Distributions from 158 A GeV/c Central Pb+Pb Collisions

Author: Aggarwal, M.M., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., C. Awes, T., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Büsching, H., Carlén, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Dutta Majumdar, M.R., El Chenawi, K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., Gustafsson, H.Å., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Löhner, H., Mahapatra, D.P., Manko, V., Martin, M., Martinez Garcia, Gines, Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.-J., Morrison, D., Mukhanova, T., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Plasil, F., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Rao, N.K., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Söderström, K., Sood, G., Sørensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., V. D. Pijll, E.C., V. Eijndhoven, N., J. V. Nieuwenhuizen, G., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Vörös, S., Wyslouch, B., Young, G.R., Laboratoire SUBATECH Nantes (SUBATECH), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes)
Subjects: 25.75.Gz, Nuclear Theory, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment
Abstract: Several hadronic observables have been studied in central 158 A GeV Pb+Pb collisions using data measured by the WA98 experiment at CERN: single negative pion and kaon production, as well as two- and three-pion interferometry. The Wiedemann-Heinz hydrodynamical model has been fitted to the pion spectrum, giving an estimate of the temperature and transverse flow velocity. Bose-Einstein correlations between two identified negative pions have been analysed as a function of kT, using two different parameterizations. The results indicate that the source does not have a strictly boost invariant expansion or spend time in a long-lived intermediate phase. A comparison between data and a hydrodynamical based simulation shows very good agreement for the radii parameters as a function of kT. The pion phase-space density at freeze-out has been measured and agrees well with the Tomasik-Heinz model. A large pion chemical potential close to the condensation limit of the pion mass seems to be excluded. The three-pion Bose-Einstein interferometry shows a substantial contribution of the genuine three-pion correlation, but not quite as large as expected for a fully chaotic and symmetric source., 24 pages including 17 figures
Published: 2003
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27. Centrality dependence of charged-neutral particle fluctuations in 158A GeV $^{208}$Pb+$^{208}$Pb collisions

Author: Aggarwal, M. M., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bucher, D., Büsching, H., Carlén, L., Chattopadhyay, S., Decowski, M. P., Delagrange, H., Donni, P., Dutta Majumdar, M. R., El Chenawi, K., Dubey, A. K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Guskov, B., Gustafsson, H. Å, Gutbrod, H. H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Karadjev, K., Karpio, K., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Löhner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Martínez, G., Maximov, A., Miake, Y., Mishra, G. C., Bedangadas Mohanty, Mora, M. -J, Morrison, D., Mukhanova, T., Mukhopadhyay, D. S., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Pinganaud, W., Plasil, F., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. -R, Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Söderström, K., Sood, G., Sørensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., Pijll, E. C. V. D., Eijndhoven, N. V., Nieuwenhuizen, G. J. V., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Vörös, S., Wyslouch, B., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and WA98
Subjects: 25.75.Gz, 13.40.-f, 24.90.+d, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published: 2003
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28. Photon flow in 158 A GeV Pb+Pb collisions

Author: Aggarwal, M. M., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M. P., Delagrange, H., Donni, P., Dubey, A. K., Dutta Majumdar, M. R., Enosawa, K., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Karadjev, K., Karpio, K., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Miake, Y., Mishra, G. C., Mohanty, B., Mora, M. J., Morrison, D., Mukhanova, T., Mukhopadhyay, D. S., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S. C., Pinganaud, W., Plasil, F., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., R Schmidt, H., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., Pijjll, E. C. V. D., Eijndhoven, N. V., Nieuwenhuizen, G. J. V., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published: 2002

29. Centrality dependence of charged-neutral particle fluctuations in 158A GeV Pb+Pb collisions

Author: Aggarwal, M.M., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Dutta Majumdar, M.R., El Chenawi, K., Dubey, A.K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Karadjev, K., Karpio, K., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.J., Morrison, D., Mukhanova, T., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Pinganaud, W., Plasil, F., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., van de Pijll, E.C., van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A.S., Voros, S., Wyslouch, B., and Young, G.R.
Subjects: Nuclear Physics
Abstract: Results on the study of localized fluctuations in the multiplicity of charged particles and photons produce 158A GeV/c Pb+Pb collisions are presented for four different centrality classes. The charged versus neutral particle multiplicity correlations in common phase space regions of varying azimuthal size 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 non-statistical fluctuations in both the charged particle and photon multiplicities in limited azimuthal regions which decrease with decrease in centrality. 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 has been set. Results on the study of localized fluctuations in the multiplicity of charged particles and photons produce 158A GeV/c Pb+Pb collisions are presented for four different centrality classes. The charged versus neutral particle multiplicity correlations in common phase space regions of varying azimuthal size 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 non-statistical fluctuations in both the charged particle and photon multiplicities in limited azimuthal regions which decrease with decrease in centrality. 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 has been set. Results on the study of localized fluctuations in the multiplicity of charged particles and photons produce 158A GeV/c Pb+Pb collisions are presented for four different centrality classes. The charged versus neutral particle multiplicity correlations in common phase space regions of varying azimuthal size 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 non-statistical fluctuations in both the charged particle and photon multiplicities in limited azimuthal regions which decrease with decrease in centrality. 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 has been set.
Published: 2002

30. Event-by-event fluctuations in particle multiplicities and transverse energy produced in 158A GeVPb plus Pb collisions

Author: Aggarwal, M M, Ahammed, Z, Angelis, A L S, Antonenko, V, Arefiev, V, Astakhov, V, Avdeitchikov, V, Awes, T C, Baba, P V K S, Badyal, S K, Bathe, S, Batiounia, B, Bernier, T, Bhalla, K B, Bhatia, VS, Blume, C, Bucher, D, Busching, H, Carlen, L, Chattopadhyay, S, Decowski, MP, Delagrange, H, Donni, P, Majumdar, MRD, El Chenawi, K, Dubey, AK, Enosawa, K, Fokin, S, Frolov, V, Ganti, MS, Garpman, S, Gavrishchuk, O, Geurts, FJM, Ghosh, T K, Glasow, R, Guskov, B, Gustafsson, H.A., Gutbrod, HH, Hrivnacova, I, Ippolitov, M, Kalechofsky, H, Karadjev, K, Karpio, K, Kolb, BW, Kosarev, I, Koutcheryaev, I, Kugler, A, Kulinich, P, Kurata, M, Lohner, H, Mohanty, B, KVI - Center for Advanced Radiation Technology, and Research unit Nuclear & Hadron Physics
Subjects: PHYSICS, NUCLEUS NUCLEUS COLLISIONS, PHASE-TRANSITION, DISTRIBUTIONS, HEAVY-ION COLLISIONS, O-16-NUCLEUS COLLISIONS, PB+PB COLLISIONS, DETECTOR, QCD, QUARK-GLUON PLASMA
Abstract: Event-by-event fluctuations in the multiplicities of charged particles and photons, and the total transverse energy in 158A GeV Pb+Pb collisions are studied for a wide range of centralities. For narrow centrality bins the multiplicity and transverse energy distributions are found to be near perfect Gaussians. The effect of detector acceptance on the multiplicity fluctuations has been studied and demonstrated to follow statistical considerations. The centrality dependence of the charged particle multiplicity fluctuations in the measured data has been found to agree reasonably well with those obtained from a participant model. However, for photons the multiplicity fluctuations have been found to be lower compared to those obtained from a participant model. The multiplicity and transverse energy fluctuations have also been compared to those obtained from the VENUS event generator.
Published: 2002

31. Particle density fluctuations

Author: Aggarwal, M.M., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Büsching, H., Carlen, L., Chattopadhyay, S., Das, A.C., Decowski, M.P., Donni, P., Dubey, A.K., Dutta Majumdar, M.R., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishcuk, O., Geurts, F.J.M., Glasow, R., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Löhner, H., Mahapatra, D.P., Manko, V., Martin, M., Miake, Y., Mishra, G.C., Mohanty, B., Morrison, D., Mukhopadhayay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nishimura, S., Nomokov, P., Petracek, V., Plasil, F., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Sibiriak, I., Siemiarczuk, T., Sinha, B.C., Slavine, N., Söderström, K., Sood, G., Sørensen, S.P., Stankus, P., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., Eijinhoven, N.v., Niewenhuizen, G.J.v., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Vörös, S., Wyslouch, B., Young, G.R., and KVI - Center for Advanced Radiation Technology
Subjects: Physics, Nuclear and High Energy Physics, Photon, FOS: Physical sciences, Multiplicity (mathematics), HEAVY-ION COLLISIONS, QCD, Charged particle, Nuclear physics, Rapidity, Nuclear Experiment (nucl-ex), Particle density, Nuclear Experiment, POINT, Nuclear Physics
Abstract: Event-by-event fluctuations in the multiplicities of charged particles and photons at SPS energies are discussed. Fluctuations are studied by controlling the centrality of the reaction and rapidity acceptance of the detectors. Results are also presented on the event-by-event study of correlations between the multiplicity of charged particles and photons to search for DCC-like signals., Comment: Talk presented at Quark Matter 2002, Nantes, France
Published: 2002
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32. Event-by-event fluctuations in particle multiplicities and transverse energy produced in 158A GeV Pb+Pb collisions

Author: Aggarwal, M. M., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Decowski, M. P., Delagrange, H., Donni, P., Doubovik, I., Dubey, A. K., Majumdar, M. R. D., El Chenawi, K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Karadjev, K., Karpio, K., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Miake, Y., Mishra, G. C., Mohanty, B., M-J, Mora, Morrison, D., Mukhanova, T., Mukhopadhyay, D. S., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Pinganaud, W., Plasil, F., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., H-R, Schmidt, Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., Pijll, E. C., Nv. Eijndhoven, Jv Nieuwenhuizen, G., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and WA98
Subjects: [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published: 2002

33. Event-by-Event Fluctuations in Particle Multiplicities and Transverse Energy Produced in 158.A GeV Pb+Pb collisions

Author: Aggarwal, M.M., Angelis, A.L.S., Ahammed, Z., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bucher, D., Busching, H., Carlen, L., Chattopadhyay, S., Decowski, M.P., Delagrange, H., Donni, P., Dutta Majumdar, M.R., El Chenawi, K., Dubey, A.K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Karadjev, K., Karpio, K., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Miake, Y., Mishra, G.C., Mohanty, B., Mora, M.J., Morrison, D., Mukhanova, T., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S.C., Pinganaud, W., Plasil, F., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Sumbera, M., Svensson, T., Tsvetkov, A., Tykarski, L., van de Pijll, E.C., van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A.S., Voros, S., Wyslouch, B., and Young, G.R.
Subjects: Nuclear Physics
Abstract: Event-by-event fluctuations in the multiplicities of charged particles and photons, and the total transverse energy in 158$\cdot A$ GeV Pb+Pb collisions are studied for a wide range of centralities. For narrow centrality bins the multiplicity and transverse energy distributions are found to be near perfect Gaussians. The effect of detector acceptance on the multiplicity fluctuations has been studied and demonstrated to follow statistical considerations. The centrality dependence of the charged particle multiplicity fluctuations in the measured data has been found to agree reasonably well with those obtained from a participant model. However for photons the multiplicity fluctuations has been found to be lower compared to those obtained from a participant model. The multiplicity and transverse energy fluctuations have also been compared to those obtained from the VENUS event generator.
Published: 2001

34. Direct Photon Production in 158 A GeV $^{208}Pb+^{208}Pb$ collisions

Author: Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Areev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Boesing, Christian, Knoche, S., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Morrison, Douglas R.O., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., von Poblotzki, U., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sood, G., Srensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., van de Pijll, E.C., van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A.S., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.
Subjects: High Energy Physics::Experiment, Nuclear Physics - Experiment, Nuclear Experiment
Abstract: A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield or upper limit of direct photons as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c is presented. A significant direct photon excess is observed at p_T > 1.5 GeV/c in central collisions. The results are compared to proton-induced results and to theoretical predictions. Implications for the dynamics of high-energy heavy-ion collisions are discussed. A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield or upper limit of direct photons as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c is presented. A significant direct photon excess is observed at p_T > 1.5 GeV/c in central collisions. The results are compared to proton-induced results and to theoretical predictions. Implications for the dynamics of high-energy heavy-ion collisions are discussed.
Published: 2001

35. Scaling of particle and transverse energy production in $^{208}$Pb+$^{208}$Pb collisions at 158 A.GeV

Author: Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabache, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bohne, E. M., Borocz, Z. K., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta-Majumdar, M. R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechosfsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Mora, M. J., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Raeven, B., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Cvd Pijll, E., Nv. Eijndhovern, Jv Nieuwenhuizen, G., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published: 2001

36. Localized charged-neutral fluctuations in 158A GeV Pb+Pb collisions

Author: Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dubey, A. K., Dutt, S., Majumdar, M. R. D., Chenawi, K. E., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Bosing, C., Knoche, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mgebrichvili, G., Miake, Y., Mir, M. D. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Mora, M. J., Morrison, D., Mukhopadhyay, D. S., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., Uv. Poblotzki, Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sood, G., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Cvd Pijll, E., Nv. Eijndhoven, Jv Nieuwenhuizen, G., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and WA98
Subjects: [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published: 2001

37. Multiplicity distributions and charged-neutral fluctuations

Author: Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounai, B., Bernier, T., Bhalia, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Bucher, D., Buijs, A., Buis, E. J., Busching, H., Carlen, L., Chalyshev, V., Chenawi, K. E., Cherbatchev, R., Chujo, T., Clausse, A., Das, A. C., Decowski, M. P., Djjordjadze, V., Donni, P., Doubovik, I., Dubey, A. K., Dutta-Majumdar, M. R., Eliseev, S., Enosawa, K., Feldmann, H., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kumar, V., Kurata, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Mahapatra, D. P., Manko, V., Martin, M., Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nishimura, S., Nomokov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Purschke, M. L., Raeven, B., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Rubio, J. M., Sambyal, S. S., Sato, R., Sato, S., Schlagheck, H., Schmidt, H. R., Shabratova, G., Sibiriak, I., Siemiarcuk, T., Sinha, B. C., Slavine, N., Soderstorm, K., Solomey, N., Sood, G., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tavetkov, A., Twenhofel, C., Tykarski, L., Urbahn, J., Eijndhoven, N. V., Heeringen, W. H. V., Nieuwenhuizen, G. J. V., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Vos, M. A., Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), and Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published: 2000

38. Three-pion interferometry results from central Pb plus Pb collisions at 158A GeV/c

Author: Aggarwal, M.M., Agnihotri, A., Ahammed, Z.A., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, D., Bohne, E.-M., Böröcz, Z.K., Bucher, D., Buijs, A., Büsching, H., Carlén, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpmann, S., Gavrishchuk, O., Geurts, F., Ghosh, Tarun, Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.-A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Bösing, C., Knoche, S., Kolb, B., Kosarev, I., Koutcheryaev, I., Krümpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Löhner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, Md.F., Miyamoto, Y., Mohanti, B., Mora, M.-J., Morrison, D., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., and KVI - Center for Advanced Radiation Technology
Subjects: MODEL, TRACKING, MULTISTEP AVALANCHE CHAMBER, HEAVY-ION COLLISIONS, PERFORMANCE, PB+PB COLLISIONS, 3-PION CORRELATIONS
Abstract: Three-particle correlations have been measured for identified pi(-) from central 158A GeV Pb + Pb collisions by the WA98 experiment at CERN. A substantial contribution of the genuine three-body correlation has been found as expected for a mainly chaotic and symmetric source.
Published: 2000

39. Scaling of Particle and Transverse Energy Production in 208Pb+208Pb collisions at 158 A GeV

Author: Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bohne, E.M., Borocz, Z.K., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mehdiyev, Rashid R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Mora, M.J., Morrison, Douglas R.O., Mukhopadhyay, D.S., Myalkovski, V., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M.L., Raeven, B., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., van de Pijll, E.C., van Eijndhoven, N., van Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A.S., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., Young, G.R., KVI - Center for Advanced Radiation Technology, and Research unit Nuclear & Hadron Physics
Subjects: Physics and Astronomy (miscellaneous), Nuclear Theory, FOS: Physical sciences, HEAVY-ION COLLISIONS, Nuclear physics, TARGETS, DISTRIBUTIONS, Nuclear Physics - Experiment, Physics::Chemical Physics, Nuclear Experiment (nucl-ex), Nuclear Experiment, Engineering (miscellaneous), Scaling, Physics, Range (particle radiation), PLASMA, NUCLEUS-NUCLEUS COLLISIONS, HADRONS, MULTIPLICITY, Charged particle, MOMENTUM, MODEL, Pseudorapidity, ULTRARELATIVISTIC ENERGIES, Production (computer science), High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Impact parameter, Nucleon, Energy (signal processing)
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 N_{part}^{1.08 \pm 0.06} and N_{coll}^{0.83 \pm 0.05} is observed. For the charged particle pseudorapidity density at midrapidity we find a scaling as N_{part}^{1.07 \pm 0.04} and N_{coll}^{0.82 \pm 0.03}. This faster than linear scaling with N_{part} indicates a violation of the naive Wounded Nucleon Model., 13 pages, 16 figures, submitted to European Physical Journal C (revised results for scaling exponents)
Published: 2000

40. Three-pion interferometry results from central Pb+Pb collisions at 158A GeV/c

Author: Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Mr. Dutta-Majumdar, El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C., Eijndhoven, N., Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published: 2000

41. Three-Pion Interferometry Results from Central Pb+Pb Collisions at 158 A GeV/c

Author: Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.-M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Bosing, C., Knoche, S., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Mora, M.-J., Morrison, D., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., von Poblotzki, U., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E.C.v.d., Eijndhoven, N.v., Nieuwenhuizen, G.J.v., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.
Subjects: Nuclear Theory, High Energy Physics::Experiment, Nuclear Experiment, Particle Physics - Experiment
Abstract: Three-particle correlations have been measured for identified negative pions from central 158 A GeV Pb+Pb collisions by the WA98 experiment at CERN. A substantial contribution of the genuine three-body correlation has been found as expected for a mainly chaotic and symmetric source. Three-particle correlations have been measured for identified negative pions from central 158 A GeV Pb+Pb collisions by the WA98 experiment at CERN. A substantial contribution of the genuine three-body correlation has been found as expected for a mainly chaotic and symmetric source.
Published: 2000

42. Observation of Direct Photons in Central 158 A GeV $^{208}Pb+^{208}Pb$ Collisions

Author: Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.-M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Bosing, C., Knoche, S., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Mohanty, B., Mora, M.-J., Morrison, D., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Pavliouk, S., Peitzmann, T., Petracek, V., Pinganaud, W., Plasil, F., Poblotzki, U.v., Purschke, M.L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sood, G., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E.C.v.d., Eijndhoven, N.v., Nieuwenhuizen, G.J.v., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.
Subjects: High Energy Physics::Experiment, Nuclear Physics - Experiment, Nuclear Experiment
Abstract: A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons in central collisions is extracted as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at p_T > 1.5 GeV/c. The results constitute the first observation of direct photons in ultrarelativistic heavy-ion collisions which could be significant for diagnosis of quark gluon plasma formation. A measurement of direct photon production in 208Pb + 208Pb collisions at 158 A GeV has been carried out in the CERN WA98 experiment. The invariant yield of direct photons in central collisions is extracted as a function of transverse momentum in the interval 0.5 < p_T < 4 GeV/c. A significant direct photon signal, compared to statistical and systematical errors, is seen at p_T > 1.5 GeV/c. The results constitute the first observation of direct photons in ultrarelativistic heavy-ion collisions which could be significant for diagnosis of quark gluon plasma formation.
Published: 2000

43. $\Delta^{++}$ production in 158 A GeV $^{208}$Pb+$^{208}$Pb interactions at the CERN SPS

Author: Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Mr. Dutta-Majumdar, El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C., Eijndhoven, N., Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published: 2000

44. Observation of direct photons in central 158A GeV $^{208}$Pb+$^{208}$Pb collisions

Author: Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Mr. Dutta-Majumdar, El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C., Eijndhoven, N., Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published: 2000

45. Central Pb+Pb collisions at 158 A GeV/c studied by $\pi^-\pi^-$ interferometry

Author: Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Mr. Dutta-Majumdar, El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Schutz, Y., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C., Eijndhoven, N., Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published: 2000

46. Central Pb+Pb collisions at 158 A Ge V studied by pion pion interferometry

Author: Aggarwal, M.M., Agnihotri, A., Ahammed, Z.A., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, D., Bohne, E.-M., Böröcz, Z.K., Bucher, D., Buijs, A., Büsching, H., Carlén, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Ganti, M.S., Garpmann, S., Gavrishchuk, O., Geurts, F., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.-A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Klein-Bösing, C., Knoche, S., Kolb, B., Kosarev, I., Koutcheryaev, I., Krümpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Löhner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mgebrichvili, G., Miake, Y., Mir, Md.F., Miyamoto, Y., Mohanti, B., Mora, M.-J., Morrison, D., Mukhopadhyay, D.S., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., and KVI - Center for Advanced Radiation Technology
Published: 2000

47. Freeze-out parameters in central 158A (GeVPb)-Pb-208+Pbcollisions

Author: Aggarwal, M M, Agnihotri, A, Ahammed, Z, Angelis, A L S, Antonenko, V, Arefiev, V, Astakhov, V, Avdeitchikov, V, Awes, T C, Baba, P V K S, Badyal, S K, Baldine, A, Barabach, L, Barlag, C, Bathe, S, Batiounia, B, Bernier, T, Bhalla, K B, Bhatia, V S, Blume, C, Bock, R, Bohne, E M, Borocz, Z K, Bucher, D, Buijs, A, Busching, H, Carlen, L, Chalyshev, V, Chattopadhyay, S, Cherbatchev, R, Chujo, T, Claussen, A, Das, A C, Decowski, M P, Delagrange, H, Djordjadze, V, Donni, P, Doubovik, I, Dutt, S, Majumdar, M R D, El Chenawi, K, Eliseev, S, Enosawa, K, Foka, P, Fokin, S, Frolov, V, Ganti, M S, Garpman, S, Gavrishchuk, O, Geurts, F J M, Ghosh, T K, Glasow, R, Gupta, S K, Guskov, B, Gustafsson, H.A., Gutbrod, H H, Higuchi, R, Hrivnacova, I, Ippolitov, M, Kalechofsky, H, Kamermans, R, Kampert, K H, Karadjev, K, Karpio, K, Kato, S, Kees, S, Kim, H, Kolb, B W, Kosarev, I, Koutcheryaev, I, Krumpel, T, Kugler, A, Kulinich, P, Kurata, M, Kurita, K, Kuzmin, N, Langbein, I, Lebedev, A, Lee, YY, Lohner, H, Luquin, L, Mahapatra, D P, Manko, V, Martin, M, Martinez, G, Maximov, A, Mehdiyev, R, Mgebrichvili, G, Miake, Y, Mikhalev, D, Mir, M F, Mishra, G C, Miyamoto, Y, Morrison, D, Mukhopadhyay, D S, Myalkovski, V, Naef, H, Nandi, B K, Nayak, S K, Nayak, T K, Neumaier, S, Nianine, A, Nikitine, V, Nikolaev, S, Nilsson, P, Nishimura, S, Nomokonov, P, Nystrand, J, Obenshain, F E, Oskarsson, A, Otterlund, I, Pachr, M, Parfenov, A, Pavliouk, S, Peitzmann, T, Petracek, V, Plasil, F, Pinganaud, W, Purschke, M L, Raeven, B, Rak, J, Raniwala, R, Raniwala, S, Ramamurthy, V S, Rao, N K, Retiere, F, Reygers, K, Roland, G, Rosselet, L, Roufanov, I, Roy, C, Rubio, J M, Sako, H, Sambyal, S S, Santo, R, Sato, S, Schlagheck, H, Schutz, Y, Shabratova, G, Shah, T H, Sibiriak, I, Siemiarczuk, T, Silvermyr, D, Sinha, BC, Slavine, N, Soderstrom, K, Solomey, N, Sorensen, S P, Stankus, P, Stefanek, G, Steinberg, P, Stenlund, E, Stuken, D, Sumbera, M, Svensson, T, Trivedi, M D, Tsvetkov, A., Tykarski, L, Urbahn, J, von der Pijll, E C, von Eijndhoven, N, von Nieuwenhuizen, G J, Vinogradov, A, Viyogi, Y P, Vodopianov, A, Voros, S, Wyslouch, B, Yagi, K, Yokota, Y, Young, G R, KVI - Center for Advanced Radiation Technology, and Research unit Nuclear & Hadron Physics
Subjects: Nuclear Theory, NUCLEAR COLLISIONS, EXPANSION, HEAVY-ION COLLISIONS, Nuclear Experiment
Abstract: Neutral pion production in central 158A GeV Pb-208 + Pb-208 collisions has been studied in the WA98 experiment at the CERN Super Proton Synchrotron. The pi(0) transverse mass spectrum has been analyzed in terms of a thermal model with hydrodynamic expansion. The high accuracy and large kinematic coverage of the measurement allow one to limit previously noted ambiguities in the extracted freeze-out parameters. The results are shown to be sensitive to the shape of the velocity distribution at freeze-out.
Published: 1999

48. Search for disoriented chiral condensates in 158.A GeV Pb+Pb collisions

Author: Aggarwal, M. M., Agnihotri, A., Ahammed, Z., Angelis, A. L. S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T. C., Baba, P. V. K. S., Badyal, S. K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bock, R., Bohne, E. M., Borocz, Z., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A. C., Decowski, M. P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Mr. Dutta-Majumdar, El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J. M., Ghosh, T. K., Glasow, R., Gupta, S. K., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K. H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y. Y., Lohner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Gines Martinez Garcia, Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, M. F., Mishra, G. C., Miyamoto, Y., Mohanty, B., Morrison, D., Mukhopadhyay, D. S., Myalkovski, V., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F. E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V. S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sako, H., Sambyal, S. S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H. R., Shabratova, G., Shah, T. H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B. C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S. P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M. D., Tsvetkov, A., Tykarski, L., Urbahn, J., Pijll, E. C., Eijndhoven, N., Nieuwenhuizen, G. J., Vinogradov, A., Viyogi, Y. P., Vodopianov, A., Sandrine Voros, Wyslouch, B., Yagi, K., Yokota, Y., Young, G. R., Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and WA98
Subjects: [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Published: 1999

49. Freeze-Out Parameters in Central 158 AGeV $^{208}Pb$ + $^{208}Pb$ Collisions

Author: Aggarwal, M.M., Agnihotri, A., Ahammed, Z., Angelis, A.L.S., Antonenko, V., Arefiev, V., Astakhov, V., Avdeitchikov, V., Awes, T.C., Baba, P.V.K.S., Badyal, S.K., Baldine, A., Barabach, L., Barlag, C., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K.B., Bhatia, V.S., Blume, C., Bock, R., Bohne, E.-M., Borocz, Z.K., Bucher, D., Buijs, A., Busching, H., Carlen, L., Chalyshev, V., Chattopadhyay, S., Cherbatchev, R., Chujo, T., Claussen, A., Das, A.C., Decowski, M.P., Delagrange, H., Djordjadze, V., Donni, P., Doubovik, I., Dutt, S., Dutta Majumdar, M.R., El Chenawi, K., Eliseev, S., Enosawa, K., Foka, P., Fokin, S., Frolov, V., Ganti, M.S., Garpman, S., Gavrishchuk, O., Geurts, F.J.M., Ghosh, T.K., Glasow, R., Gupta, S.K., Guskov, B., Gustafsson, H.A., Gutbrod, H.H., Higuchi, R., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Kampert, K.-H., Karadjev, K., Karpio, K., Kato, S., Kees, S., Kim, H., Kolb, B.W., Kosarev, I., Koutcheryaev, I., Krumpel, T., Kugler, A., Kulinich, P., Kurata, M., Kurita, K., Kuzmin, N., Langbein, I., Lebedev, A., Lee, Y.Y., Lohner, H., Luquin, L., Mahapatra, D.P., Manko, V., Martin, M., Martinez, G., Maximov, A., Mehdiyev, R., Mgebrichvili, G., Miake, Y., Mikhalev, D., Mir, Md.F., Mishra, G.C., Miyamoto, Y., Morrison, D., Mukhopadhyay, D.S., Myalkovski, V., Naef, H., Nandi, B.K., Nayak, S.K., Nayak, T.K., Neumaier, S., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Obenshain, F.E., Oskarsson, A., Otterlund, I., Pachr, M., Parfenov, A., Pavliouk, S., Peitzmann, T., Petracek, V., Plasil, F., Pinganaud, W., Purschke, M.L., Raeven, B., Rak, J., Raniwala, R., Raniwala, S., Ramamurthy, V.S., Rao, N.K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J.M., Sako, H., Sambyal, S.S., Santo, R., Sato, S., Schlagheck, H., Schmidt, H.-R., Schutz, Y., Shabratova, G., Shah, T.H., Sibiriak, I., Siemiarczuk, T., Silvermyr, D., Sinha, B.C., Slavine, N., Soderstrom, K., Solomey, N., Sorensen, S.P., Stankus, P., Stefanek, G., Steinberg, P., Stenlund, E., Stuken, D., Sumbera, M., Svensson, T., Trivedi, M.D., Tsvetkov, A., Tykarski, L., Urbahn, J., v.d.Pijll, E.C., v.Eijndhoven, N., v.Nieuwenhuizen, G.J., Vinogradov, A., Viyogi, Y.P., Vodopianov, A., Voros, S., Wyslouch, B., Yagi, K., Yokota, Y., and Young, G.R.
Subjects: Nuclear Theory, High Energy Physics::Experiment, Nuclear Physics - Experiment, Nuclear Experiment
Abstract: Neutral pion production in central 158AGeV Pb+Pb collisions has been studied in the WA98 experiment at the CERN SPS. The pi0 transverse mass spectrum has been analyzed in terms of a thermal model with hydrodynamic expansion. The high accuracy and large kinematic coverage of the measurement allow to limit previously noted ambiguities in the extracted freeze-out parameters. The results are shown to be sensitive to the shape of the velocity distribution at freeze-out. Neutral pion production in central 158AGeV Pb+Pb collisions has been studied in the WA98 experiment at the CERN SPS. The pi0 transverse mass spectrum has been analyzed in terms of a thermal model with hydrodynamic expansion. The high accuracy and large kinematic coverage of the measurement allow to limit previously noted ambiguities in the extracted freeze-out parameters. The results are shown to be sensitive to the shape of the velocity distribution at freeze-out.
Published: 1999

50. Collective flow in Pb + Pb collisions at the CERN-SPS

Author: Nishimura, S, Aggarwal, M M, Agnihotri, A, Ahammed, Z, Angelis, Aris L S, Antonenko, V G, Arefev, V, Astakhov, V A, Avdeichikov, V, Awes, T C, Baba, P V K S, Badyal, S K, Baldin, A, Barabash, L, Barlag, C, Bathe, S, Batyunya, B, Bernier, T, Bhalla, K B, Bhatia, V S, Blume, C, Böck, R K, Bohne, E M, Böröcz, Z K, Bucher, D, Buijs, A, Buis, E J, Büsching, H, Carlén, L, Chalyshev, V, Chattopadhyay, S, Cherbachev, R, Chujo, T, Claussen, A, Das, A C, Decowski, M P, Dzhordzhadze, V, Dönni, P, Dubovik, I, Dutt, S K, Dutta-Majumdar, M R, Chenawi, K E, Eliseev, S, Enosawa, K, Feldmann, H, Foka, P Y, Fokin, S L, Frolov, V, Ganti, M S, Garpman, S I A, Gavrishchuk, O P, Geurts, F J M, Ghosh, T K, Glasow, R, Sen-Gupta, S K, Guskov, B, Gustafsson, Hans Åke, Gutbrod, H H, Higuchi, R, Hrivnacova, I, Ippolitov, M S, Kalechofsky, H, Kamermans, R, Kampert, K H, Karadzhev, K, Karpio, K, Kato, S, Kees, S, Kim, H, Kolb, B W, Kosarev, I G, Kucheryaev, I, Krümpel, T, Kugler, A, Kulinich, P A, Kurata, M, Kurita, K, Kuzmin, N A, Langbein, I, Lebedev, A, Lee, Y Y, Löhner, H, Luquin, Lionel, Man'ko, V I, Martin, M, Maksimov, A, Mehdiyev, R, Mgebrishvili, G, Miake, Y, Mikhalev, D, Mir, M F, Mishra, G C, Miyamoto, Y, Morrison, D, Mukhopadhyay, D S, Myalkovskii, V, Naef, H, Nandi, B K, Nayak, S K, Nayak, T K, Neumaier, S, Nyanin, A, Nikitin, V A, Nikolaev, S, Nilsson, P O, Nomokonov, V P, Nystrand, J, Obenshain, F E, Oskarsson, A, Otterlund, I, Pachr, M, Parfenov, A, Pavlyuk, S, Peitzmann, Thomas, Petracek, V, Plasil, F, Pinanaud, W, Purschke, M L, Räven, B, Rak, J, Raniwala, R, Raniwala, S, Ramamurthy, V S, Rao, N K, Retière, F, Reygers, K, Roland, G, Rosselet, L, Rufanov, I A, Roy, C, Rubio, J M, Sako, H, Sambyal, S S, Santo, R, Sato, S, Schlagheck, H, Schmidt, H R, Shabratova, G, Shah, T H, Sibiryak, Yu, Siemiarczuk, T, Silvermyr, D, Sinha, B C, Slavin, N V, Söderström, K, Solomey, Nickolas, Sørensen, S P, Stankus, P, Stefanek, G, Steinberg, P, Stenlund, E, Stüken, D, Sumbera, M, Svensson, T, Trivedi, M D, Tsvetkov, A A, Tykarski, L, Urbahn, J, Van den Pijll, E C, van Eijndhoven, N, Van Heeringen, W H, van Nieuwenhuizen, G J, Vinogradov, A, Viyogi, Y P, Vodopyanov, A S, Vörös, S, Wyslouch, B, Yagi, K, Yokota, Y, and Young, G R
Subjects: Physics, Nuclear physics, Transverse plane, Large Hadron Collider, Flow (mathematics), Hadron, Elliptic flow, High Energy Physics::Experiment, Nuclear Experiment, Anisotropy, Nuclear Physics
Abstract: The preliminary results of anisotropic transverse flow will be reported in 158 A GeV Pb + Pb collisions.
Published: 1999

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