89 results on '"H.H. Gutbrod"'
Search Results
2. Photon flow in 158 A GeV Pb+Pb collisions
- Author
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Sergey Nikolaev, M.M. Aggarwal, A.L.S. Angelis, V. Antonenko, V. Arefiev, V. Astakhov, V. Avdeitchikov, T.C. Awes, P.V.K.S. Baba, S.K. Badyal, S. Bathe, B. Batiounia, T. Bernier, K.B. Bhalla, V.S. Bhatia, C. Blume, D. Bucher, H. Büsching, L. Carlen, S. Chattopadhyay, M.P. Decowski, H. Delagrange, P. Donni, M.R. Dutta Majumdar, A.K. Dubey, K. El Chenawi, K. Enosawa, S. Fokin, V. Frolov, M.S. Ganti, S. Garpman, O. Gavrishchuk, F.J.M. Geurts, T.K. Ghosh, R. Glasow, B. Guskov, H.Å. Gustafsson, H.H. Gutbrod, I. Hrivnacova, M. Ippolitov, H. Kalechofsky, K. Karadjev, K. Karpio, B.W. Kolb, I. Kosarev, I. Koutcheryaev, A. Kugler, P. Kulinich, M. Kurata, A. Lebedev, H. Löhner, L. Luquin, D.P. Mahapatra, V. Manko, M. Martin, G. Martínez, A. Maximov, Y. Miake, G.C. Mishra, B. Mohanty, M.-J. Mora, D. Morrison, T. Mukhanova, D.S. Mukhopadhyay, H. Naef, B.K. Nandi, S.K. Nayak, T.K. Nayak, A. Nianine, V. Nikitine, S. Nikolaev, P. Nilsson, S. Nishimura, P. Nomokonov, J. Nystrand, A. Oskarsson, I. Otterlund, T. Peitzmann, D. Peressounko, V. Petracek, S.C. Phatak, W. Pinganaud, F. Plasil, M.L. Purschke, J. Rak, R. Raniwala, S. Raniwala, N.K. Rao, F. Retiere, K. Reygers, G. Roland, L. Rosselet, I. Roufanov, C. Roy, J.M. Rubio, S.S. Sambyal, R. Santo, S. Sato, H. Schlagheck, H.-R. Schmidt, Y. Schutz, G. Shabratova, T.H. Shah, I. Sibiriak, T. Siemiarczuk, D. Silvermyr, B.C. Sinha, N. Slavine, K. Söderström, S.P. Sørensen, P. Stankus, G. Stefanek, P. Steinberg, E. Stenlund, M. Sumbera, T. Svensson, A. Tsvetkov, L. Tykarski, E.C.v.d. Pijll, N.v. Eijndhoven, G.J.v. Nieuwenhuizen, A. Vinogradov, Y.P. Viyogi, A. Vodopianov, S. Vörös, B. Wysłouch, and G.R. Young
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Physics ,Nuclear reaction ,Nuclear and High Energy Physics ,Particle physics ,Photon ,Meson ,Nuclear Theory ,Hadron ,Elliptic flow ,Elementary particle ,Nuclear physics ,Pion ,High Energy Physics::Experiment ,Rapidity ,Nuclear Experiment - Abstract
Directed and elliptic flow of pi(0) - decay photons in 158 A GeV Pb+Pb collisions has been studied near midrapidity in an analysis of data obtained with the photon spectrometer LEDA of the WA98 experiment at the CERN SPS. Preliminary results on the rapidity and transverse momentum dependence of the flow have been obtained for various centrality classes for p(T) > 0.2 GeV/c and 2.3 < y < 2.9. The results are compared with the pion flow.
- Published
- 2003
3. Δ++ production in 158 A GeV 208Pb+208Pb interactions at the CERN SPS
- Author
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M.M. Aggarwal, A. Agnihotri, Z. Ahammed, A.L.S. Angelis, V. Antonenko, V. Arefiev, V. Astakhov, V. Avdeitchikov, T.C. Awes, P.V.K.S. Baba, S.K. Badyal, A. Baldine, L. Barabach, C. Barlag, S. Bathe, B. Batiounia, T. Bernier, K.B. Bhalla, V.S. Bhatia, C. Blume, R. Bock, E.-M. Bohne, Z. Böröcz, D. Bucher, A. Buijs, H. Büsching, L. Carlen, V. Chalyshev, S. Chattopadhyay, R. Cherbatchev, T. Chujo, A. Claussen, A.C. Das, M.P. Decowski, H. Delagrange, V. Djordjadze, P. Donni, I. Doubovik, S. Dutt, M.R. Dutta Majumdar, K. El Chenawi, S. Eliseev, K. Enosawa, P. Foka, S. Fokin, V. Frolov, M.S. Ganti, S. Garpman, O. Gavrishchuk, F.J.M. Geurts, T.K. Ghosh, R. Glasow, S.K. Gupta, B. Guskov, H.Å. Gustafsson, H.H. Gutbrod, R. Higuchi, I. Hrivnacova, M. Ippolitov, H. Kalechofsky, R. Kamermans, K.-H. Kampert, K. Karadjev, K. Karpio, S. Kato, S. Kees, B.W. Kolb, I. Kosarev, I. Koutcheryaev, T. Krümpel, A. Kugler, P. Kulinich, M. Kurata, K. Kurita, N. Kuzmin, I. Langbein, A. Lebedev, Y.Y. Lee, H. Löhner, L. Luquin, D.P. Mahapatra, V. Manko, M. Martin, G. Martı́nez, A. Maximov, R. Mehdiyev, G. Mgebrichvili, Y. Miake, D. Mikhalev, Md.F. Mir, G.C. Mishra, Y. Miyamoto, B. Mohanty, D. Morrison, D.S. Mukhopadhyay, V. Myalkovski, H. Naef, B.K. Nandi, S.K. Nayak, T.K. Nayak, S. Neumaier, A. Nianine, V. Nikitine, S. Nikolaev, P. Nilsson, S. Nishimura, P. Nomokonov, J. Nystrand, F.E. Obenshain, A. Oskarsson, I. Otterlund, M. Pachr, A. Parfenov, S. Pavliouk, T. Peitzmann, V. Petracek, F. Plasil, W. Pinganaud, M.L. Purschke, J. Rak, R. Raniwala, S. Raniwala, V.S. Ramamurthy, N.K. Rao, F. Retiere, K. Reygers, G. Roland, L. Rosselet, I. Roufanov, C. Roy, J.M. Rubio, H. Sako, S.S. Sambyal, R. Santo, S. Sato, H. Schlagheck, H.-R. Schmidt, Y. Schutz, G. Shabratova, T.H. Shah, I. Sibiriak, T. Siemiarczuk, D. Silvermyr, B.C. Sinha, N. Slavine, K. Söderström, N. Solomey, S.P. Sørensen, P. Stankus, G. Stefanek, P. Steinberg, E. Stenlund, D. Stüken, M. Sumbera, T. Svensson, M.D. Trivedi, A. Tsvetkov, L. Tykarski, J. Urbahn, E.C. van der Pijll, N. van Eijndhoven, G.J. van Nieuwenhuizen, A. Vinogradov, Y.P. Viyogi, A. Vodopianov, S. Vörös, B. Wysłouch, K. Yagi, Y. Yokota, and G.R. Young
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Physics ,Nuclear physics ,Delta ,Nuclear and High Energy Physics ,Particle physics ,Large Hadron Collider ,Pion ,Invariant mass ,Chemical equilibrium ,Nuclear Experiment - Abstract
The Delta(++)-resonance production in central 158 A GeV Pb-208 + Pb-208 collisions at the CERN SPS has been studied. The Delta(++) production was estimated from the invariant mass spectrum of p pi(+)-pairs by subtracting a mixed event background. The measured Delta(++) abundance is compared with the results from other experiments at lower energies, and with a model calculation assuming thermal and chemical equilibrium. (C) 2000 Elsevier Science B.V. All rights reserved.
- Published
- 2000
4. Elliptic emission of K+ and π+ in 158 A·GeV Pb + Pb collisions
- Author
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M.M. Aggarwal, A. Agnihotri, Z. Ahammed, A.L.S. Angelis, V. Antonenko, V. Arefiev, V. Astakhov, V. Avdeitchikov, T.C. Awes, P.V.K.S. Baba, S.K. Badyal, A. Baldine, L. Barabach, C. Barlag, S. Bathe, B. Batiounia, T. Bernier, K.B. Bhalla, V.S. Bhatia, C. Blume, R. Bock, E.-M. Bohne, Z. Böröcz, D. Bucher, A. Buijs, H. Büsching, L. Carlen, V. Chalyshev, S. Chattopadhyay, R. Cherbatchev, T. Chujo, A. Claussen, A.C. Das, M.P. Decowski, H. Delagrange, V. Djordjadze, P. Donni, I. Doubovik, S. Dutt, M.R. Dutta Majumdar, K. El Chenawi, S. Eliseev, K. Enosawa, P. Foka, S. Fokin, V. Frolov, M.S. Ganti, S. Garpman, O. Gavrishchuk, F.J.M. Geurts, T.K. Ghosh, R. Glasow, S.K. Gupta, B. Guskov, H.Å. Gustafsson, H.H. Gutbrod, R. Higuchi, I. Hrivnacova, M. Ippolitov, H. Kalechofsky, R. Kamermans, K.-H. Kampert, K. Karadjev, K. Karpio, S. Kato, S. Kees, B.W. Kolb, I. Kosarev, I. Koutcheryaev, T. Krümpel, A. Kugler, P. Kulinich, M. Kurata, K. Kurita, N. Kuzmin, I. Langbein, A. Lebedev, Y.Y. Lee, H. Löhner, L. Luquin, D.P. Mahapatra, V. Manko, M. Martin, G. Martı́nez, A. Maximov, R. Mehdiyev, G. Mgebrichvili, Y. Miake, D. Mikhalev, Md.F. Mir, G.C. Mishra, Y. Miyamoto, D. Morrison, B. Mohanty, D.S. Mukhopadhyay, V. Myalkovski, H. Naef, B.K. Nandi, S.K. Nayak, T.K. Nayak, S. Neumaier, A. Nianine, V. Nikitine, S. Nikolaev, P. Nilsson, S. Nishimura, P. Nomokonov, J. Nystrand, F.E. Obenshain, A. Oskarsson, I. Otterlund, M. Pachr, A. Parfenov, S. Pavliouk, T. Peitzmann, V. Petracek, F. Plasil, W. Pinganaud, M.L. Purschke, B. Raeven, J. Rak, R. Raniwala, S. Raniwala, V.S. Ramamurthy, N.K. Rao, F. Retiere, K. Reygers, G. Roland, L. Rosselet, I. Roufanov, C. Roy, J.M. Rubio, H. Sako, S.S. Sambyal, R. Santo, S. Sato, H. Schlagheck, H.-R. Schmidt, Y. Schutz, G. Shabratova, T.H. Shah, I. Sibiriak, T. Siemiarczuk, D. Silvermyr, B.C. Sinha, N. Slavine, K. Söderström, N. Solomey, S.P. Sørensen, P. Stankus, G. Stefanek, P. Steinberg, E. Stenlund, D. Stüken, M. Sumbera, T. Svensson, M.D. Trivedi, A. Tsvetkov, L. Tykarski, J. Urbahn, E.C. v.d. Pijll, N. v. Eijndhoven, G.J. v. Nieuwenhuizen, A. Vinogradov, Y.P. Viyogi, A. Vodopianov, S. Vörös, B. Wysłouch, K. Yagi, Y. Yokota, and G.R. Young
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Nuclear physics ,Azimuth ,Physics ,Nuclear and High Energy Physics ,Meson ,Angular correlation ,Plane (geometry) ,Astrophysics::High Energy Astrophysical Phenomena ,Anisotropic flow ,High Energy Physics::Experiment ,Atomic physics ,Nuclear Experiment - Abstract
An event-by-event analysis of the azimuthal angular correlation with respect to the reaction plane has been carried out for K+ and pi(+) emission near mid-rapidity in 158 A . GeV Pb + Pb collisions. In semi-central collisions, K+ mesons are found to be preferentially emitted out of the reaction plane, while pi(+) mesons are emitted in the reaction plane. The results suggest that the kaon emission is influenced by in-medium potential effects in addition to collective flow effects. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
- Published
- 1999
5. Direct photon production in high-energy heavy-ion collisions
- Author
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V. Manko, M.M. Aggarwal, A. Agnihotri, Z. Ahammed, A.L.S. Angelis, V. Antonenko, V. Arefiev, V. Astakhov, V. Avdeitchikov, T.C. Awes, P.V.K.S. Baba, S.K. Badyal, A. Baldine, L. Barabach, C. Barlag, S. Bathe, B. Batiounia, T. Bernier, K.B. Bhalla, V.S. Bhatia, C. Blume, R. Bock, E.-M. Bohne, Z. Böröcz, D. Bucher, A. Buijs, H. Büsching, L. Carlen, V. Chalyshev, S. Chattopadhyay, R. Cherbatchev, T. Chujo, A. Claussen, A.C. Das, M.P. Decowski, V. Djordjadze, P. Donni, I. Doubovik, S. Dutt, M.R. Dutta Majumdar, K. El Chenawi, S. Eliseev, K. Enosawa, P. Foka, S. Fokin, V. Frolov, M.S. Ganti, S. Garpman, O. Gavrishchuk, F.J.M. Geurts, T.K. Ghosh, R. Glasow, S.K. Gupta, B. Guskov, H.A Gustafsson, H.H. Gutbrod, R. Higuchi, I. Hrivnacova, M. Ippolitov, H. Kalechofsky, R. Kamermans, K.-H. Kampert, K. Karadjev, K. Karpio, S. Kato, S. Kees, H. Kim, B.W. Kolb, I. Kosarev, I. Koutcheryaev, T. Krümpel, A. Kugler, P. Kulinich, M. Kurata, K. Kurita, N. Kuzmin, I. Langbein, A. Lebedev, Y.Y. Lee, H. Löhner, L. Luquin, D.P. Mahapatra, M. Martin, A. Maximov, R. Mehdiyev, G. Mgebrichvili, Y. Miake, D. Mikhalev, Md.F. Mir, G.C. Mishra, Y. Miyamoto, D. Morrison, D.S. Mukhopadhyay, V. Myalkovski, H. Naef, B.K. Nandi, S.K. Nayak, T.K. Nayak, S. Neumaier, A. Nianine, V. Nikitine, S. Nikolaev, P. Nilsson, S. Nishimura, P. Nomokonov, J. Nystrand, F.E. Obenshain, A. Oskarsson, I. Otterlund, M. Pachr, A. Parfenov, S. Pavliouk, T. Peitzmann, V. Petracek, F. Plasil, W. Pinanaud, M.L. Purschke, B. Raeven, J. Rak, R. Raniwala, S. Raniwala, V.S. Ramamurthy, N.K. Rao, F. Retiere, K. Reygers, G. Roland, L. Rosselet, I. Roufanov, C. Roy, J.M. Rubio, H. Sako, S.S. Sambyal, R. Santo, S. Sato, H. Schlagheck, H.-R. Schmidt, G. Shabratova, T.H. Shah, I. Sibiriak, T. Siemiarczuk, D. Silvermyr, B.C. Sinha, N. Slavine, K. Söderström, N. Solomey, S.P. Sørensen, P. Stankus, G. Stefanek, P. Steinberg, E. Stenlund, D. Stüken, M. Sumbera, T. Svensson, M.D. Trivedi, A. Tsvetkov, L. Tykarski, J. Urbahn, E.C.v.d. Pijll, N.v. Eijndhoven, G.J.v. Nieuwenhuizen, A. Vinogradov, Y.P. Viyogi, A. Vodopianov, S. Vörös, B. Wyslouch, K. Yagi, Y. Yokota, and G.R. Young
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Massless particle ,Physics ,Nuclear physics ,Nuclear reaction ,Nuclear and High Energy Physics ,Strange matter ,Photon ,Hadron ,Two-photon physics ,Elementary particle ,Atomic physics ,Particle detector - Published
- 1999
6. The future heavy ion experiment ALICE at the LHC at CERN
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A. Morsch and H.H. Gutbrod
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Physics ,Nuclear and High Energy Physics ,Particle physics ,Luminosity (scattering theory) ,Large Hadron Collider ,Physics::Instrumentation and Detectors ,Detector ,Cosmic ray ,Ion source ,Ion ,law.invention ,Nuclear physics ,law ,Physics::Accelerator Physics ,High Energy Physics::Experiment ,ALICE (propellant) ,Nuclear Experiment ,Collider - Abstract
The Large Hadron Collider (LHC) under construction at CERN is also planned as a heavy ion collider with lead ions colliding at an energy of (2.75 + 2.75) · 208 · TeV. This corresponds to collisions of matter with cosmic rays of the highest energies observed so far promising the study of new and exciting aspects of physics. Minor improvements of the lead ion source at the CERN SPS are necessary in order to provide a luminosity of L = 10 27 cm −2 s −1 . The detector ALICE has been chosen as the third detector for the LHC and will be dedicated to the physics of these nuclear collisions, In addition to the heaviest system (Pb-Pb), collisions of lower mass ions are foreseen as a means to study collisions at different energy density and proton-nucleus (p-A) collisions provide indispensable reference data for the A-A collisions.
- Published
- 1999
7. Corrigendum to 'Inclusive J/ψ production in pp collisions at s=2.76 TeV' [Phys. Lett. B 718 (2012) 295]
- Author
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A. Rachevski, M. Steinpreis, R. Romita, Silvia Masciocchi, D. Hasegan, Deepika Rathee, R. P. Scharenberg, Christina Markert, J. Thã¤der, Jørgen André Lien, Joel Anthony Mazer, M. Morando, Bruno Espagnon, Antoine Xavier Lardeux, A. A. Vinogradov, K. Gulbrandsen, Kenta Shigaki, B. H. Han, Domenico Colella, Vladimir Samsonov, Christian Holm Christensen, S. K. Oh, G. Hamar, Renaud Vernet, J. H. Kim, L. Leistam, Maya Hachiya Shimomura, D. Tlusty, Christine Nattrass, A. S. Nyanin, Ramona Lea, L. Xaplanteris Karampatsos, A. G. Asryan, Alexander Mamonov, Fengchu Zhou, F. Bellini, J.S. Real, Alexandru Florin Dobrin, Jin Joo Seo, Kai Loo, Alessandro Grelli, Yasuo Miake, Kilian Eberhard Schwarz, I. Martashvili, Florian Painke, A. B. Kaidalov, Paul Constantin, L. Cunqueiro, David Michael Rohr, Krzysztof Redlich, S. Lohn, P. Lã©vai, Andrei Ionut Herghelegiu, Heiko Engel, Panagiotis Christakoglou, G. Koyithatta Meethaleveedu, Philipp Johannes Luettig, Anton Jusko, Christophe Furget, Alexander Philipp Kalweit, Olja Dordic, Palash Khan, K. Strabykin, D. R. Gangadharan, Roberto Divia, G. Cara Romeo, J.-Y. Grossiord, Yvonne Chiara Pachmayer, K. Schweda, T. P. Sinha, P. Glã¤ssel, E. Garcia Solis, C. Baumann, Csaba Soos, Hanna Paulina Zbroszczyk, I. Chawla, Hans Rudolf Schmidt, Davide Caffarri, A. Ortiz Velasquez, H. A. Torii, Toru Sugitate, D. S. Hwang, Patrick Simon Reichelt, Sergey Nazarenko, Cristina Terrevoli, Michele Floris, Miroslav Pikna, Mario Sitta, P. Kaliåã¡k, Trine Spedstad Tveter, Ivan Kisel, Airton Deppman, M. Gallio, A. Nedosekin, O. Villalobos Baillie, Christian Lippmann, R. A. Ricci, T. J. Humanic, Dario Berzano, J. Kral, Sara Vallero, E. Nappi, Giacomo Contin, V. P. Kondratiev, T. Breitner, L. Å. ã¡ndor, D. Wang, Peter Malzacher, J. F. Castillo Hernandez, Mauro Rogerio Cosentino, B. Polichtchouk, Betty Abelev, Mario Fusco Girard, V. R. Loggins, D. Silvermyr, V. Demanov, I. Sgura, Nicolas Bock, D. Caballero Orduna, Sandro Bjelogrlic, Paolo Pagano, C. Guerra Gutierrez, Ruben Shahoyan, Tomoya Tsuji, J. Mareå, G.S. Shabratova, Subhash Singha, Andrey Vasiliev, Enrico Scomparin, Boris Batyunya, M. RodrÃguez Cahuantzi, C. Di Giglio, Martin Vala, Salvatore De Pasquale, Teodor Siemiarczuk, Linda Vickovic, D. Fabris, Deepa Thomas, Myunggeun Song, Brigitte Cheynis, M. Lenhardt, Federico Carminati, S. Porteboeuf Houssais, C. Pajares, Ajit Kumar Mohanty, Alla Maevskaya, M. A. S. Figueredo, V. Lenti, B. Grinyov, Jurgen Schukraft, K. Das, Chiara Zampolli, Mikhail Stolpovskiy, Andrew Ivanov, Paolo Giubellino, J. Anielski, Raphaelle Marie Bailhache, V. Petrã¡äek, Silvia Arcelli, P. H. S. Y. Jayarathna, Jai Samuel Nielsen Salzwedel, E. Gladysz Dziadus, A. G. Agocs, Hannes Jung, Filip Krizek, N. van der Kolk, P. González Zamora, H. Oeschler, David Dobrigkeit Chinellato, Raphaelle Ichou, Luke David Hanratty, C. Silvestre, K. Polã¡k, A. K. Dutta Majumdar, E. Fragiacomo, L. K. Mangotra, T. Kalliokoski, Ulrich Fuchs, Michal Krelina, S. U. Ahn, Annalisa De Caro, D. Emschermann, M. Pachr, L. Manceau, Stefano Piano, Ken Oyama, Claudio Geuna, Nicola Bianchi, M. Sano, Ionel Stan, J. Pluta, Hideki Hamagaki, Meidana Huang, Ermanno Vercellin, Fabio Filippo Colamaria, Evgeny Ryabinkin, Yongwook Baek, L. Molnar, G. Batigne, Paolo Camerini, M. Zynovyev, Sergey Voloshin, Anselmo Margotti, D. Truesdale, Dmitry Finogeev, Oleksii Ivanytskyi, F. Tosello, Anju Bhasin, C. Lara, L. Boldizsã¡r, M. Fragkiadakis, I. S. Zgura, M. A. Mazzoni, Artem Konevskikh, R. Ferretti, B. Ghidini, Premomoy Ghosh, Vladislav Manko, B. Pastiräã¡k, P. A. Scott, L. Jancurovã, Ian Gardner Bearden, L. S. Pinsky, K. Kanaki, C. Tagridis, G. Tejeda Muñoz, A. Vyushin, Peter Zahariev Hristov, C. Sã¸gaard, Rene Bellwied, Iwona Anna Sputowska, A. N. Mishra, Alexandru Bercuci, A. Piccotti, Vladimir Ivanov, Martin Poghosyan, J. Bieläãkovã¡, G. A. Feofilov, Indranil Das, L. Vannucci, M. Zhalov, T. Niida, A. Kolojvari, Andrey Zarochentsev, Hans Hjersing Dalsgaard, Igor Lakomov, C. Nygaard, J. Sarkamo, A. Korneev, J. Rak, E. Cruz Alaniz, C. Hadjidakis, R. N. Singaraju, F. Lefã¨vre, Natalia Kondratyeva, Siegfried Valentin Foertsch, D. Peresunko, Kirill Voloshin, Alessandro Ferretti, G. Conesa Balbastre, Paolo Martinengo, S. Bose, Agneta Oskarsson, Vladimir Peskov, J. Bã¡n, Alexey Kuryakin, J. J. Gaardhã¸je, Filimon Roukoutakis, S. Bã¶ttger, W. Yu, D. Rã¶hrich, G. Viesti, Alina Gabriela Grigoras, Annika Passfeld, Jon Christopher Wikne, Stefania Bufalino, M. Sukhorukov, G. L. Usai, M. ¿umbera, G. S. Pappalardo, M. K. Kã¶hler, P. G. Kuijer, S. Puchagin, Mikolaj Krzewicki, M. Botje, Raffaele Grosso, Barbara Guerzoni, Debasish Das, Bogdan Theodor Rascanu, M. Putiå, Giacomo Bruno, Michal Petran, V. Kakoyan, E. Dã©nes, Rainer Arno Ernst Renfordt, Tuva Ora Herenui Richert, R. W. Fearick, Francesco Barile, I. Garishvili, Anthony Robert Timmins, Ranbir Singh, Lu X. G., H.H. Gutbrod, Janusz Oleniacz, A. Arend, M. Masera, Filippo Costa, Sylvain Chapeland, Y. Berdnikov, Ana Vargas, D. Hatzifotiadou, Danthasinghe Piyarathna, Federico Cindolo, Adam Ryszard Kisiel, A. J. Rubio Montero, Haavard Helstrup, Hans Peter Beck, A. Nyatha, B. V. K. S. Potukuchi, Motoi Inaba, Rui Ma, V. Altini, Jaroslav Adam, Petr Nomokonov, J. Takahashi, S. Jangal, Markus Fasel, T. Peitzmann, In-kwon Yoo, M. Vajzer, A. RamÃrez Reyes, O. Vikhlyantsev, Mikhail Malaev, Volker Lindenstruth, Kyong Sei Lee, Branislav Sitar, A. B. Kurepin, A. Gupta, I. Maldonado Cervantes, J. F. Grosse Oetringhaus, Paola Gianotti, S. Serci, Xiangrong Zhu, A. Karasu Uysal, Michael Linus Knichel, Elena Bruna, M. J. Kweon, K. Rã¸ed, C. E. Pérez Lara, D. C. Vernekohl, Rinaldo Rui, Maxime Guilbaud, S. Sano, Vito Manzari, Costin Grigoras, Leonardo Milano, Jongik Yoon, I. Kraus, L. V. Malinina, M. E. Cotallo, Peter Christiansen, J. Urbã¡n, Malgorzata Anna Janik, H. León Vargas, F. Soramel, Joakim Nystrand, Federico Ronchetti, Andre Mischke, Yu. V. Kharlov, Sona Pochybova, Juyeon Yi, G. D Erasmo, Marian Ivanov, Marco De Petris, R. Janik, Gualtiero Volpe, Ã. . Haaland, Iouri Belikov, Thomas Dietel, J. Bartke, G. Ortona, A. Baldit, Madan M. Aggarwal, R. Lietava, B. K. Srivastava, C. Ivan, Evgeny Kryshen, M. Mohisin Khan, D. Budnikov, L. H. González Trueba, A. Adare, S. Yasnopolskiy, F. Scarlassara, I. Cortés Maldonado, Rashmi Raniwala, Fatima Padilla, Cinzia Luzzi, Francesco Noferini, Alberica Toia, Y. Vinogradov, Klaus Johannes Reygers, D. P. Mahapatra, I. Berceanu, Borge Svane Nielsen, Ajay Kumar Dash, K. Bugaiev, Petra Riedler, J. L. Klay, A. R. Reolon, L. Valencia Palomo, M. Venaruzzo, G. Stefanek, A. I. Pavlinov, Evgeny Karpechev, B. S. Chang, G. Steyn, G. Aglieri Rinella, Jung-Il Song, Kjetil Ullaland, Vladimir Nikulin, N. De Marco, Sabyasachi Siddhanta, J. Putschke, Pradip Kumar Sahu, T. Antiäiä, Vardanush Papikyan, R. Alfaro Molina, A. M. Gago, M. Krus, C. Klein Bösing, Dominik Fehlker, R. Scott, J. H. Kang, Alexander Borissov, X. Cai, Maria Haiduc, Boris Hippolyte, P. Crochet, B. Hicks, G.F. Segato, D. I. Patalakha, Alexis Jean-michel Mas, Haijun Yang, C. Bergmann, Gyulnara Eyyubova, Mihaela Gheata, T. Moon, Francesco Riggi, Y. J. Kwon, Alberto Masoni, P. Zã¡vada, Boris Wagner, Eugen Mudnic, L. Jirden, Julien Faivre, J. Vrlã¡kovã¡, G. de Cataldo, M. Mastromarco, Rosario Nania, Chiara Bianchin, Panagiota Foka, Tyler Allen Browning, J. G. Contreras, J. P. Revol, Claude Andre Pruneau, Sadhana Dash, Wisla Carena, Martino Gagliardi, Leonid Vinogradov, M. Veldhoen, N. Carlin Filho, Davide Falchieri, Alessandra Fantoni, E. Quercigh, Martijn Reicher, U. Frankenfeld, Roberto Preghenella, Fiorella Fionda, Alexander Kluge, Sanjib Muhuri, P. Roy, T. Susa, C. Petta, Michal Broz, F. Piuz, J. Castillo Castellanos, Y. Sibiriak, Johanna Stachel, Y. Martynov, Fabrizio Coccetti, Y. Pestov, N. Pitz, I. Ilkiv, G. V. Margagliotti, Stefan Kirsch, A. Pulvirenti, Y. Mao, L. Montaño Zetina, E. Serradilla, M. Bogolyubsky, H. Mã¼ller, Angela Badala, P. Ostrowski, F. Blanco, K. Watanabe, F.F. Guber, D. Di Bari, P. T. Hille, M. Spyropoulou Stassinaki, E. Crescio, M. Bach, Pietro Cortese, Zubayer Ahammed, Eleazar Cuautle, S. Esumi, A. G. Knospe, Ilya Selyuzhenkov, Satyajit Jena, M. Bombara, Roberto Barbera, A. Hayrapetyan, R. Varma, Z. Vilakazi, Ara Grigoryan, V. Chibante Barroso, Raghunath Sahoo, Adam Tomasz Matyja, D. Mayani, Werner Riegler, M. Irfan, S.A. Sadovsky, S. Gorbunov, P. Ladrón de Guevara, Anand Kumar Dubey, Y. Kucheriaev, M. R. Dutta Majumdar, S. U. Chung, I. Krã¡lik, C. Garabatos, Marie Germain, Y. Hori, D. Evans, Valerie Ramillien Barret, G. M. Urciuoli, A. Szanto de Toledo, A. A. P. Suaide, E. Pereira De Oliveira Filho, Henner Buesching, P. M. Jacobs, Radiy Ilkaev, A. MartÃnez Davalos, Serhiy Senyukov, T.H. Kim, Nikita Smirnov, M. Cherney, Marian Krivda, S. Aguilar Salazar, Christian Claude Kuhn, I. Domãnguez, Thomas Michael Cormier, Kathrin Koch, Johan Alme, L. Riccati, F. Carena, Luciano Ramello, Magnus Mager, J. Pujol Teixido, H. Appelshã¤user, Lee Stuart Barnby, J. D. Tapia Takaki, A. A. Rademakers, H. Bã¸ggild, R. Smakal, S. Radomski, Xavier Bernard Lopez, P. Cerello, Luciano Musa, M. Basile, M. A. Diaz Corchero, S. Prasad, Cenek Zach, M. Boccioli, Alexey Kurepin, A. Fernández Téllez, Oliver Busch, C. Lazzeroni, S. Schuchmann, Giuseppe Simonetti, P. Zelnicek, R. A. Soltz, Sergio Vergara, Z. Harmanova, Taku Gunji, Yawen Wang, Kyrre Skjerdal, Dosatsu Sakata, G. Paiá, Grzegorz Andrzej Wilk, W. J. Park, Pietro Antonioli, Marco Monteno, Sergey Nikolaev, J. Mercado Pérez, T. Pawlak, G. O.V. de Barros, Y. Le Bornec, S. Kox, Matthias Richter, E. Del Castillo Sanchez, Jacek Tomasz Otwinowski, Z. L. Matthews, Rachid Guernane, Luisa Cifarelli, W. Peryt, Y. Zoccarato, Andrei Gheata, R. Gomez, Alexander Vodopyanov, Xiang Zhang, Gennady Zinovjev, D. Miakowiec, M. Kim, Ralf Peter Averbeck, S. Beole, F. Rettig, Marta Verweij, Shuaib Ahmad Khan, Alexandr Tumkin, N. Ahmad, P. I. Loenne, G. Herrera Corral, Eugenio Scapparone, M. Påoskoå, A. Sandoval, A. Ochirov, P. Pillot, F. Bossãº, A. Ahmad Masoodi, Anton Alkin, Bongsoo Kim, Sergey Filchagin, Marco Bregant, H. Delagrange, T. Dobrowolski, Andrea Alici, Bikash Sinha, Melinda Siciliano, N. Grion, K. Shtejer, F. Baltasar Dos Santos Pedrosa, Jochen Klein, P. Braun Munzinger, T. Horaguchi, Anton Andronic, L. Liu, A. Szostak, H. J. Jang, Diego Stocco, R. Grajcarek, E. Chiavassa, Dai-Mei Zhou, S. Huber, D. Adamovã, B. Vulpescu, Carlos A. Salgado, Valery Punin, S.A. Zaporozhets, Adriana Telesca, Sangeun Lee, Jean Willy Andre Cleymans, J. Ulrich, Sven Gotovac, Sergey Kiselev, Michael Wang, Laurent Ducroux, P. La Rocca, Ankita Goswami, You Zhou, N. Zaviyalov, Cvetan Valeriev Cheshkov, D. A. Moreira De Godoy, C. D. Anson, Stefan Thomas Heckel, R. de Rooij, Yves Roland Schutz, M. Hartig, S. Sharma, T. Krawutschke, G. G. Barnafã¶ldi, J. de Cuveland, Massimiliano Marchisone, A. Menchaca Rocha, Andreas Morsch, D. De Gruttola, Claudiu Cornel Schiaua, Shingo Sakai, J. Mlynarz, P. Rosnet, S. Navin, Sandra Moretto, A. Palmeri, Uwe Westerhoff, Bastian Bathen, Andrey Reshetin, Sukalyan Chattopadhyay, Marcello Lunardon, Mihai Petrovici, W. H. Trzaska, Andrea Danu, Henrik Qvigstad, L. Aphecetche, M. Kliemant, P. Di Nezza, Peter Strmen, Luciana Bianchi, Stefan Rossegger, Henning Kværnø, Bedangadas Mohanty, Ionut Cristian Arsene, M. C. S. Williams, A. Pesci, P. G. Innocenti, M. A. Subieta Vásquez, Arturo Tauro, V. Nikolic, E. M. Fiore, Christoph Mayer, V. Pospãå¡il, J. Saini, D. Elia, Bernd Stefan Windelband, Varlen Grabski, Junlee Kim, Vladimir Vechernin, R.J.M. Snellings, Annalisa Mastroserio, M. Nicassio, N. P. Naumov, O. Driga, S. S. Rã¤sã¤nen, Néstor Armesto, Z. Buthelezi, C. Kottachchi Kankanamge Don, B. S. Nilsen, Cristian Andrei, L. Toscano, Amalia Pop, Mohd Danish Azmi, A. Hansen, Eva Sicking, E. Belmont Moreno, T.M. Steinbeck, Igor Altsybeev, Nicolas Arbor, K. Ma, Renu Bala, Imrich Szarka, Nicole Bastid, Daniel Lohner, C. Cavicchioli, Frederick Kramer, Venelin Anguelov, Rama Chandra Baral, V. Wagner, E. G. Ferreiro, B. von Haller, E. Calvo Villar, T.A. Pocheptsov, R. Wan, Sebastian Kalcher, S. Pal, J. Wiechula, Johannes Peter Wessels, Bjarte Kileng, Sergey Nikulin, D. M. Madagodahettige Don, D. Perini, V. Kushpil, Latchezar Betev, Seyong Kim, C. Oppedisano, G. Lã¸vhã¸iden, Adrian Sevcenco, V. Grigoriev, Christoph Blume, Peter Graham Jones, A. Musso, Andrzej Rybicki, Ciprian Mihai Mitu, Laure Marie Massacrier, Y. Corrales Morales, D. Vranic, Vitaly Loginov, Smbat Grigoryan, Antonino Zichichi, Udo Wolfgang Kebschull, E. Montes, F. Prino, Rainer Martin Schicker, Marcelo Gameiro Munhoz, A. Jachoåkowski, Andrzej Deloff, Pascal Dupieux, Andrea Dainese, Sergey Fokin, D. Felea, J. Book, S. Di Liberto, Toralf Bernhard Skaali, Marek Chojnacki, J. L. Charvet, B. Dã¶nigus, Andre Augustinus, Valeria Muccifora, A. G. Bogdanov, Jiebin Luo, R. Baldini Ferroli, Kenneth Francis Read, Jan Cepila, P. Petrov, Vladimir Kaplin, Herve Borel, H. Sakaguchi, Torsten Alt, A. Wilk, E. Braidot, Alexander Akindinov, P. Gros, Rene Brun, Bruno Alessandro, J. Ãystã, Podist Kurashvili, Y. P. Viyogi, A. V. Kazantsev, H. Caines, Sudhir Raniwala, R. Santo, Marek Kowalski, M. A. Lisa, Gyula Bencedi, Tatiana Karavicheva, Gian Michele Innocenti, Christian Schmidt, M. Heide, G. Ãvrebekk, V. Canoa Roman, A. K. Bhati, L. Luquin, Ø. Djuvsland, Z. Yin, T. Aronsson, Elisa Incani, G. Puddu, Constantinos Loizides, Natasha Sharma, Mikhail Ippolitov, E. Perez Lezama, Raphael Noel Tieulent, Grazia Luparello, Mads Stormo Nilsson, Oh S. K., D. Perrino, Sedat Altinpinar, T. K. Nayak, I. Håivnã¡äovã¡, M. R. Girard, Antonio Uras, Igor Pshenichnov, M. van Leeuwen, Hyungsuk Son, S. K. Pal, M. I. Martãnez, Jan Figiel, Jovan Milosevic, M. Kretz, T. S. Rã¤ihã¤, C. A. Marin Tobon, M. Estienne, Dmitry Mal'kevich, A. Casanova DÃaz, Alberto Baldisseri, T. C. Awes, Kyoichiro Ozawa, A. Di Mauro, Sanjeev Singh Sambyal, J. Ulery, Xing-Bo Yuan, E. A. R. Casula, Ralf Keidel, Alice Zimmermann, Paraskevi Ganoti, Shinhong Kim, G. Stefanini, A. De Falco, M. Wilde, A.G. Fedunov, Steffen Schreiner, P. Vande Vyvre, Mesut Arslandok, Alexei Khanzadeev, E. Stenlund, J. Lehnert, Lukasz Kamil Graczykowski, P. L.M. Podesta Lerma, R. Kour, D. W. Kim, Jochen Gerhard, Basanta Kumar Nandi, Svein Lindal, Rishat Sultanov, Kristin Fanebust Hetland, Svetlana Kushpil, Maria Vasileiou, A. M. Rossi, C. Cicalo, Dmitry Blau, C. Roy, V. Paticchio, Shiming Yang, R. T. Jimenez Bustamante, Linus Feldkamp, Rune Langøy, Roberta Arnaldi, A. Rakotozafindrabe, X. Sanchez Castro, Romualdo Santoro, Gilda Scioli, A. Palaha, Richa Gupta, I. E. Yushmanov, D. Berenyi, E. López Torres, A. Bilandzic, Franco Meddi, Dmitry Aleksandrov, Franck Manso, Hege Austrheim Erdal, Sudipan De, Z. Conesa del Valle, Dong Jo Kim, Michal Meres, Tiziano Virgili, V. Catanescu, Peter Chochula, Christophe Pierre Suire, A. Shabetai, N. Novitzky, M. Kalisky, Oleg Karavichev, B. Boyer, N. Herrmann, Tatsuya Chujo, Federico Antinori, Gerardus Nooren, Ombretta Pinazza, Hiroki Yokoyama, Andrea Agostinelli, C. A. Carrillo Montoya, G. Nazarov, Antonin Maire, Rosario Turrisi, and J. W. Harris
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Physics ,Nuclear and High Energy Physics ,Particle physics ,Physics::Instrumentation and Detectors ,010308 nuclear & particles physics ,0103 physical sciences ,High Energy Physics::Experiment ,010306 general physics ,01 natural sciences - Published
- 2015
8. Recent results on Pb+Pb collisions at 158 AGeV from the WA98 experiment at CERN
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B. Wyslouch, M.M. Aggarwal, A. Agnihotri, Z. Ahammed, A.L.S. Angelis, V. Antonenko, V. Arefiev, V. Astakhov, V. Avdeitchikov, T.C. Awes, P.V.K.S. Baba, S.K. Badyal, A. Baldine, L. Barabach, C. Barlag, S. Bathe, B. Batiounia, T. Bernier, K.B. Bhalla, V.S. Bhatia, C. Blume, R. Bock, E.-M. Bohne, D. Bucher, A. Buijs, E.-J. Buis, H. Büsching, L. Carlen, V. Chalyshev, S. Chattopadhyay, R. Cherbatchev, T. Chujo, A. Claussen, A.C. Das, M.P. Decowski, V. Djordjadze, P. Donni, I. Doubovik, M.R. Dutta Majumdar, K. El Chenawi, S. Eliseev, K. Enosawa, H. Feldmann, P. Foka, S. Fokin, V. Frolov, M.S. Ganti, S. Garpman, O. Gavrishchuk, F.J.M. Geurts, T.K. Ghosh, R. Glasow, S.K. Gupta, B. Guskov, H.A. Gustafsson, H.H. Gutbrod, R. Higuchi, I. Hrivnacova, M. Ippolitov, H. Kalechofsky, R. Kamermans, K.-H. Kampert, K. Karadjev, K. Karpio, S. Kato, S. Kees, H. Kim, B.W. Kolb, I. Kosarev, I. Koutcheryaev, A. Kugler, P. Kulinich, V. Kumar, M. Kurata, K. Kurita, N. Kuzmin, I. Langbein, A. Lebedev, Y.Y. Lee, H. Löhner, D.P. Mahapatra, V. Manko, M. Martin, A. Maximov, R. Mehdiyev, G. Mgebrichvili, Y. Miake, D. Mikhalev, G.C. Mishra, Y. Miyamoto, D. Morrison, D.S. Mukhopadhyay, V. Myalkovski, H. Naef, B.K. Nandi, S.K. Nayak, T.K. Nayak, S. Neumaier, A. Nianine, V. Nikitine, S. Nikolaev, P. Nilsson, S. Nishimura, P. Nomokov, J. Nystrand, F.E. Obenshain, A. Oskarsson, I. Otterlund, M. Pachr, A. Parfenov, S. Pavliouk, T. Peitzmann, V. Petracek, F. Plasil, M.L. Purschke, B. Raeven, J. Rak, S. Raniwala, V.S. Ramamurthy, N.K. Rao, F. Retiere, K. Reygers, G. Roland, L. Rosselet, I. Roufanov, J.M. Rubio, S.S. Sambyal, R. Santo, S. Sato, H. Schlagheck, H.-R. Schmidt, G. Shabratova, I. Sibiriak, T. Siemiarczuk, D. Silvermyr, B.C. Sinha, N. Slavine, K. Söderström, N. Solomey, S.P. Sørensen, P. Stankus, G. Stefanek, P. Steinberg, E. Stenlund, D. Stüken, M. Sumbera, T. Svensson, M.D. Trivedi, A. Tsvetkov, C. Twenhöfel, L. Tykarski, J. Urbahn, N.v. Eijndhoven, W.H.v. Heeringen, G.J.v. Nieuwenhuizen, A. Vinogradov, Y.P. Viyogi, A. Vodopianov, S. Vörös, M.A. Vos, K. Yagi, Y. Yokota, and G.R. Young
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Physics ,Nuclear and High Energy Physics ,Particle physics ,Photon ,Large Hadron Collider ,Spectrometer ,Physics::Instrumentation and Detectors ,Hadron ,Spectral line ,Particle identification ,Calorimeter ,Nuclear physics ,Nuclear Experiment ,Neutral particle - Abstract
We present recent results obtained with the WA98 experiment at CERN SPS. The experiment consists of large acceptance hadron and photon spectrometers which allow to study many aspects of heavy ion collisions. We use event-by-event measurements of charged and neutral particle multiplicity to establish the limit on the prodution of Disoriented Chiral Condensates. We use the Plastic Ball detector together with a set of tracking chambers to study collective flow. The tracking chambers together with the excellent particle identification allow us to study the production of Δ ++ . The high resolution photon calorimeter array allows us to study inclusive photon and π 0 spectra and search for excess direct photons.
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- 1998
9. Collective flow in 158AGeV Pb+Pb collisions
- Author
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K. Söderström, A. Claussen, Evert Anders Stenlund, T. Siemiarczuk, B.N. Gus'kov, A. Agnihotri, Y. Yokota, I. Doubovik, A. C. Das, I. Koutcheryaev, F. E. Obenshain, P.V.K.S. Baba, H. Kalechofsky, H. Naef, Vladislav Manko, I. Roufanov, F. Retiere, E.J. Buis, A. Nianine, N. v. Eijndhoven, C. Blume, R. Mehdiyev, N. Solomey, Susumu Sato, P. Foka, B. Raeven, S. Vörös, V. S. Bhatia, S. Garpman, G.S. Shabratova, Agneta Oskarsson, O. P. Gavrishchuk, A. A. Tsvetkov, Bolek Wyslouch, A. Buijs, Joakim Nystrand, H. A. Gustafsson, S. Kees, Hr Schmidt, P. Kulinich, Nikolai V Slavine, V. Avdeitchikov, K.E. Chenawi, M. P. Decowski, Klaus Johannes Reygers, N.A. Kuzmin, D. Mikhalev, P. Donni, D. Bucher, Marcel Vos, Sudhir Raniwala, J. M. Rubio, Martin Purschke, H.H. Gutbrod, K. Kurita, S. K. Nayak, Michal Sumbera, C. Barlag, V. Djordjadze, Herbert Löhner, G. Stefanek, V. S. Ramamurthy, Paul Stankus, G. C. Mishra, Shunji Nishimura, V. Chalyshev, H. Schlagheck, S. Neumaier, Gunther Roland, I. Kosarev, T. K. Ghosh, D. S. Mukhopadhyay, Petr Nomokonov, H. Feldmann, L. Tykarski, A. Kugler, A.L.S. Angelis, S. P. Sorensen, Mikhail Ippolitov, I. Otterlund, W.H.v. Heeringen, F.J.M. Guerts, M. Pachr, K. Yagi, A. Baldine, R. Kamermans, T. Bernier, A. Parfenov, Madan M. Aggarwal, S. Bathe, R. Cherbatchev, A. Lebedev, Yasuo Miake, Vladimir Frolov, I. Sibiriak, R. Glasow, A.S. Vodopianov, Hyun-Chul Kim, D. P. Mahapatra, N. K. Rao, L. Rosselet, V. Petráček, Lars Carlén, V. Myalkovski, M. R. Dutta Majumdar, V. Astakhov, R. K. Bock, F. Plasil, A. Maximov, D. Stüken, I. Langbein, L. Barabach, H. Büsching, A. A. Vinogradov, Sergey Nikolaev, K. Karadjev, D. Bock, S. Eliseev, D. P. Morrison, Sergey Fokin, K. Enosawa, S. Pavliouk, G. Mgebrichvili, Tatsuya Chujo, Kh Kampert, S. Kato, Y. P. Viyogi, V.G. Antonenko, Zubayer Ahammed, V. Kumar, M. Kurata, R. Santo, Sukalyan Chattopadhyay, M. S. Ganti, B. Batiounia, S. K. Badyal, MV Manzano Martin, M. D. Trivedi, B. W. Kolb, T. K. Nayak, K. B. Bhalla, Bikash Sinha, P. Steinberg, Ivana Hrivnacova, V. Arefiev, T. C. Awes, T. Peitzmann, Y. Miyamoto, Shiv K. Gupta, Krzysztof Karpio, Jan Rak, E.-M. Bohne, G. R. Young, C. Twenhöfel, Gerrit Jan van Nieuwenhuizen, R. Higuchi, Y.Y. Lee, V. Nikitine, T. Svensson, Sanjeev Singh Sambyal, Basanta Kumar Nandi, J. Urbahn, and Hiroyuki Sako
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Physics ,Nuclear and High Energy Physics ,Spectrometer ,Nuclear Theory ,Elliptic flow ,Nuclear physics ,Transverse plane ,Angular distribution ,Flow (mathematics) ,Transverse momentum ,Rapidity ,Atomic physics ,Nuclear Experiment ,Anisotropy - Abstract
Anisotropic transverse flow has been studied with a magnetic spectrometer at midrapidity and the Plastic Ball detector at target rapidity in the WA98 experiment. Our preliminary results show the existence of directed and elliptic flow in semi-central Pb+Pb collisions. The magnitude of the directed flow is found to be significantly smaller than those observed at the AGS energies.
- Published
- 1998
10. Search for disoriented chiral condensates in 158 AGeV Pb+Pb collisions
- Author
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M.M Aggarwal, A Agnihotri, Z Ahammed, A.L.S Angelis, V Antonenko, V Arefiev, V Astakhov, V Avdeitchikov, T.C Awes, P.V.K.S Baba, S.K Badyal, A Baldine, L Barabach, C Barlag, S Bathe, B Batiounia, T Bernier, K.B Bhalla, V.S Bhatia, C Blume, R Bock, E.-M Bohne, D Bucher, A Buijs, E.-J Buis, H Büsching, L Carlen, V Chalyshev, S Chattopadhyay, R Cherbatchev, T Chujo, A Claussen, A.C Das, M.P Decowski, V Djordjadze, P Donni, I Doubovik, M.R Dutta Majumdar, K El Chenawi, S Eliseev, K Enosawa, P Foka, S Fokin, V Frolov, M.S Ganti, S Garpman, O Gavrishchuk, F.J.M Geurts, T.K Ghosh, R Glasow, S.K Gupta, B Guskov, H.A Gustafsson, H.H Gutbrod, R Higuchi, I Hrivnacova, M Ippolitov, H Kalechofsky, R Kamermans, K.-H Kampert, K Karadjev, K Karpio, S Kato, S Kees, H Kim, B.W Kolb, I Kosarev, I Koutcheryaev, A Kugler, P Kulinich, V Kumar, M Kurata, K Kurita, N Kuzmin, I Langbein, A Lebedev, Y.Y Lee, H Löhner, L Luquin, D.P Mahapatra, V Manko, M Martin, A Maximov, R Mehdiyev, G Mgebrichvili, Y Miake, D Mikhalev, G.C Mishra, Y Miyamoto, D Morrison, D.S Mukhopadhyay, V Myalkovski, H Naef, B.K Nandi, S.K Nayak, T.K Nayak, S Neumaier, A Nianine, V Nikitine, S Nikolaev, S Nishimura, P Nomokonov, J Nystrand, F.E Obenshain, A Oskarsson, I Otterlund, M Pachr, A Parfenov, S Pavliouk, T Peitzmann, V Petracek, F Plasil, M.L Purschke, B Raeven, J Rak, S Raniwala, V.S Ramamurthy, N.K Rao, F Retiere, K Reygers, G Roland, L Rosselet, I Roufanov, C Roy, J.M Rubio, H Sako, S.S Sambyal, R Santo, S Sato, H Schlagheck, H.-R Schmidt, G Shabratova, I Sibiriak, T Siemiarczuk, B.C Sinha, N Slavine, K Söderström, N Solomey, S.P Sørensen, P Stankus, G Stefanek, P Steinberg, E Stenlund, D Stüken, M Sumbera, T Svensson, M.D Trivedi, A Tsvetkov, C Twenhöfel, L Tykarski, J Urbahn, N v. Eijndhoven, W.H v. Heeringen, G.J v. Nieuwenhuizen, A Vinogradov, Y.P Viyogi, A Vodopianov, S Vörös, M.A Vos, B Wysłouch, K Yagi, Y Yokota, G.R Young, and Research unit Nuclear & Hadron Physics
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Physics ,Nuclear and High Energy Physics ,Chiral symmetry ,Particle physics ,SIMPLE (dark matter experiment) ,Phase transition ,Large Hadron Collider ,Photon ,Hadron ,Nuclear Theory ,FOS: Physical sciences ,Central region ,QCD ,High Energy Physics - Experiment ,ENERGY ,High Energy Physics - Experiment (hep-ex) ,Pion ,CERN ,PHASE-TRANSITION ,Nuclear Experiment ,DETECTOR ,Particle Physics - Experiment - Abstract
The restoration of chiral symmetry and its subsequent breaking through a phase transition has been predicted to create regions of Disoriented Chiral Condensates (DCC). This phenomenon has been predicted to cause anomalous fluctuations in the relative production of charged and neutral pions in high-energy hadronic and nuclear collisions. The WA98 experiment has been used to measure charged and photon multiplicities in the central region of 158 AGeV Pb+Pb collisions at the CERN SPS. In a sample of 212646 events, no clear DCC signal can be distinguished. Using a simple DCC model, we have set a 90% C.L. upper limit on the maximum DCC production allowed by the data., 20 Pages, LaTeX, uses elsart.cls, 8 eps figures included, submitted to Physics Letters B
- Published
- 1998
11. Azimuthal anisotropy in S + Au reactions at 200 A GeV
- Author
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M.M. Aggarwal, A.L.S. Angelis, V. Antonenko, T.C. Awes, S.K. Badyal, C. Barlag, K.B. Bhalla, V.S. Bhatia, C. Blume, D. Bock, E.-M. Bohne, D. Bucher, A. Buijs, S. Chattopadhyay, A. Claussen, G. Clewing, A.C. Das, null Devanand, P. Dönni, E. Durieux, M.R. Dutta Majumdar, P. Foka, S. Fokin, M.S. Ganti, S. Garpman, F. Geurts, T.K. Ghosh, R. Glasow, S.K. Gupta, H.-Å. Gustafsson, H.H. Gutbrod, M. Hartig, Xiaochun He, G. Hölker, M. Ippolitov, M. Izycki, S. Kachroo, H. Kalechofsky, R. Kamermans, K.-H. Kampert, K. Karadjev, B.W. Kolb, I. Langbein, J. Langheinrich, A. Lebedev, H. Löhner, S. Loknathan, V. Manko, M. Martin, I.S. Mittra, S. Mookerjee, H. Naef, S.K. Nayak, T.K. Nayak, S. Nikolaev, J. Nystrand, F.E. Obenshain, A. Oskarsson, I. Otterlund, T. Peitzmann, F. Plasil, M. Purschke, S. Raniwala, N.K. Rao, L. Rosselet, B. Roters, J.M. Rubio, S. Saini, S. Sambyal, R. Santo, H.R. Schmidt, T. Siemiarczuk, R.H. Siemssen, B.C. Sinha, S. Slegt, K. Söderström, N. Solomey, S.P. Sorensen, G. Stefanek, P. Steinhaeuser, E. Stenlund, A. Ster, D. Stüken, M.D. Trivedi, C. Twenhoefel, N. Van Eijndhoven, W.H. Van Heeringen, A. Vinogradov, Y.P. Viyogi, S. Weber, G.R. Young, KVI - Center for Advanced Radiation Technology, Research unit Nuclear & Hadron Physics, Angelis, Aris, Donni, Paul, Durieux, Eric Marie Geoffroy, Foka, Panagiota, Kalechofsky, Hal, Martin, Michel, Naef, Hanspeter, Rosselet, Laurent, Rubio, Juan Miguel, and Solomey, Nickolas
- Subjects
Physics ,Nuclear and High Energy Physics ,Photon ,biology ,Physics::Instrumentation and Detectors ,COLLECTIVE FLOW ,Detector ,Venus ,ddc:500.2 ,HEAVY-ION COLLISIONS ,biology.organism_classification ,ENERGY ,Azimuth ,Nuclear physics ,NUCLEUS COLLISIONS ,Multiplicity (chemistry) ,Nuclear Experiment ,Anisotropy ,Fourier series ,Event generator - Abstract
Azimuthal correlations of photons produced at mid-rapidity in 200 A GeV S + Au collisions have been studied using a preshower photon multiplicity detector in the WA93 experiment. The Fourier expansion method has been employed to estimate the event plane via the anisotropy of the event as a function of centrality. The event plane correlation technique has been used to determine the true event anisotropy, beyond the anisotropy which arises due to finite multiplicity. The VENUS event generator with rescattering and proper simulation of the detector response can explain only a portion of the observed anisotropy. The residual anisotropy is found to be of the order of 5% for semi-central collisions. This suggests that directed collective flow of the produced particles is present at SPS energies. (C) 1997 Published by Elsevier Science B.V.
- Published
- 1997
12. Effective rheology of bubbles moving in a capillary tube
- Author
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Hans Hjersing Dalsgaard, C. Nygaard, Marie Germain, Eugen Mudnic, J. Sarkamo, Debasish Das, Federico Carminati, Jin Joo Seo, Julien Faivre, Nikolic, Z. Harmanova, Alessandro Grelli, Ranbir Singh, Rosario Turrisi, D. Hasegan, Martijn Reicher, Toralf Bernhard Skaali, Marek Chojnacki, Domenico Colella, K. Strabykin, Y. Sibiriak, Laurent Bernard Aphecetche, Cosentino, Mad Corchero, Alexander Vodopyanov, Herve Borel, Jørgen André Lien, Alexandr Tumkin, N. Ahmad, H. Sakaguchi, Pospisil, B. Pastirčák, P. González-Zamora, Martin Poghosyan, A. Gupta, S.A. Sadovsky, C. Garabatos, Christine Nattrass, Krzysztof Redlich, L. Vannucci, Natalia Kondratyeva, Mateusz Andrzej Ploskon, Peter Christiansen, Siegfried Valentin Foertsch, Malgorzata Anna Janik, Bruno Alessandro, Maya Hachiya Shimomura, H. Bøggild, J. Ulrich, M. Morando, Antoine Xavier Lardeux, Marian Putis, H. Caines, Sudhir Raniwala, D. Peresunko, Kirill Voloshin, G. M. Urciuoli, Markus Konrad Kohler, Christian Claude Kuhn, A. A. Vinogradov, Raoul Stefan de Rooij, Boris Batyunya, Tatiana Karavicheva, Jon Christopher Wikne, Stefania Bufalino, Alessandro De Falco, Giacomo Bruno, Michal Petran, A. G. Asryan, I. Martashvili, Florian Painke, D. Hatzifotiadou, Laszlo Boldizsar, J. Takahashi, Anton Jusko, K. Gulbrandsen, Ivan Kralik, Miroslav Pikna, Mario Sitta, M. Kliemant, Y. Vinogradov, Paola Gianotti, Sona Pochybova, Federico Antinori, H. Appelshäuser, Ketil Røed, P. Cerello, Filippo Costa, Lenti, Sergey Nikolaev, Giacomo Contin, Gerardus Nooren, Ombretta Pinazza, Erick Jonathan Almaraz Avina, Michael Linus Knichel, Marian Ivanov, A. B. Kaidalov, S. Lohn, Paticchio, G.S. Shabratova, Sergio Serci, J. Anielski, Paul Constantin, K. Schweda, Marco De Petris, Gualtiero Volpe, B. K. Srivastava, I. Chawla, Hans Rudolf Schmidt, Xitzel Sanchez Castro, Linda Vickovic, M. Sano, J. Pluta, D. Fabris, A. Arend, Sylvain Chapeland, S. Chattopadhyay, S. K. Oh, David Dobrigkeit Chinellato, Raphaelle Ichou, D. Emschermann, J. L. Charvet, David Olle Rickard Silvermyr, M. Pachr, Nicola Bianchi, Barbara Guerzoni, Sanjib Muhuri, P. Roy, Muccifora, F. Blanco, A. G. Knospe, Evgeny Ryabinkin, Yongwook Baek, T. Peitzmann, In-kwon Yoo, M. Vajzer, O. Vikhlyantsev, A. A. Rademakers, L. Molnar, G. Batigne, M. Zynovyev, D. Truesdale, Dmitry Finogeev, Ajay Kumar Dash, G. Stefanek, Y. Pestov, N. Pitz, Z. Yin, Nvd Kolk, Ramona Lea, Manko, S. Kox, Eugenio Scapparone, Antonino Zichichi, M. Spyropoulou-Stassinaki, Hiroki Yokoyama, X. Cai, Akd Majumdar, R. Smakal, Cahuantzi, Marcelo Gameiro Munhoz, Ilya Selyuzhenkov, A. Nedosekin, Gerardo Antonio Herrera Corral, Maria Haiduc, Boris Hippolyte, Salvatore De Pasquale, Teodor Siemiarczuk, Stefan Kirsch, B. V. K. S. Potukuchi, E. Braidot, Alexander Akindinov, J.S. Real, Kai Loo, Christian Lippmann, H. Oeschler, Madan M. Aggarwal, Rinaldo Baldini Ferroli, D. C. Vernekohl, Rinaldo Rui, W. Yu, Raghunath Sahoo, P. Gros, Rene Bellwied, Annika Passfeld, A. G. Bogdanov, M. Lenhardt, L. Jancurová, J.A. Mares, C. Pajares, L. Jirden, L. Cunqueiro, Rosario Nania, Grazia Luparello, Demanov, R. A. Ricci, K. Polák, T. Breitner, R. Santo, Samsonov, Carlos A. Salgado, Subhash Singha, J. W. Harris, A. Rachevski, Andrea Agostinelli, Serhiy Senyukov, A. Korneev, Paolo Martinengo, S. Bose, Jean Willy Andre Cleymans, G. D Erasmo, Silvia Arcelli, S. Sano, Gines Martinez Garcia, Ernesto Belmont-Moreno, M. A. S. Figueredo, P. H. S. Y. Jayarathna, A. G. Agocs, Dariusz Czeslaw Miskowiec, Evgeny Kryshen, Marek Kowalski, Mihaela Gheata, Andrey Vasiliev, Gustavo Conesa Balbastre, M. A. Lisa, Gyula Bencedi, S. Prasad, Igor Lakomov, Hyungsuk Son, M. Heide, Ivonne Alicia Maldonado Cervantes, Anthony Robert Timmins, Adam Ryszard Kisiel, Alexis Jean-michel Mas, Haijun Yang, Oliver Busch, B. Grinyov, Ulrich Fuchs, C. A. Carrillo Montoya, G. Nazarov, Antonin Maire, Peter Kalinak, S.A. Zaporozhets, Adriana Telesca, L. Luquin, T. Aronsson, D. S. Hwang, Patrick Simon Reichelt, S. K. Pal, Kaplin, Satyajit Jena, M. Bombara, Enrico Scomparin, Silvia Masciocchi, S. Gorbunov, Gangadharan, J. Bielcikova, Cinzia Luzzi, Pld Guevara, Kakoyan, Wisla Carena, Martino Gagliardi, Sergey Nazarenko, D. De Gruttola, Roberto Preghenella, Paolo Camerini, Sergey Voloshin, Raphael Noel Tieulent, Ara Grigoryan, I. Ilkiv, E. Serradilla, Betty Abelev, Mihai Petrovici, H. León, Elisa Incani, M. J. Kweon, Guillermo Tejeda Munoz, Costin Grigoras, Leonardo Milano, Kushpil, J. Putschke, Dmitry Mal'kevich, Kenta Shigaki, Ayben Karasu Uysal, Henning Kværnø, Magnus Mager, Vasco Miguel Chibante Barroso, Brigitte Cheynis, Z. Buthelezi, Cvetan Valeriev Cheshkov, P. T. Hille, M. Cherney, Annalisa De Caro, Peter Chochula, Christophe Pierre Suire, A. Shabetai, N. Novitzky, Meidana Huang, Sedat Altinpinar, T. K. Nayak, W. J. Park, C. Silvestre, Gianluca Aglieri Rinella, Pietro Antonioli, Edgar Perez Lezama, Arturo Fernandez Tellez, D. Elia, Bernd Stefan Windelband, Rachid Guernane, Renaud Vernet, C. Klein-Bösing, Hannes Jung, Néstor Armesto, A. Hansen, F. Carena, Taku Gunji, Luisa Cifarelli, W. Peryt, Papikyan, D. M. Madagodahettige-Don, A. Vyushin, B. Vulpescu, Peter Zahariev Hristov, Sebastian Kalcher, Bjarte Kileng, Wagner, A. S. Nyanin, F. Bellini, Hideki Hamagaki, Gunnar Løvhøiden, S. Esumi, Sabyasachi Siddhanta, Boris Wagner, Oleksii Ivanytskyi, Chiara Bianchin, Tyler Allen Browning, J. G. Contreras, M. Irfan, M. C. S. Williams, Kilian Eberhard Schwarz, S. U. Chung, D. Evans, Anselmo Margotti, M. Fragkiadakis, M. Kalisky, Alberica Toia, Lee Stuart Barnby, N. Zaviyalov, Peter Graham Jones, A. Musso, A. Ahmad Masoodi, T. Horaguchi, A. Pulvirenti, E. Fragiacomo, Ian Gardner Bearden, Rainer Arno Ernst Renfordt, Petr Nomokonov, Juyeon Yi, Rashmi Raniwala, Claude Andre Pruneau, Sadhana Dash, Roberto Barbera, Fbds Pedrosa, R. Grajcarek, Asd Toledo, Premomoy Ghosh, Pietro Cortese, Oleg Karavichev, B. Boyer, Azmi, Smbat Grigoryan, M. Sukhorukov, G. S. Pappalardo, Raphaelle Marie Bailhache, Rainer Martin Schicker, S. Schuchmann, P. G. Kuijer, Leonidas Xaplanteris Karampatsos, Ernesto Calvo Villar, Andrzej Deloff, D. Felea, J. Book, Andre Augustinus, F. Tosello, Anju Bhasin, G.F. Segato, C. Lara, G. A. Feofilov, M. Zhalov, T. Niida, Fiorella Fionda, Y. Mao, J. Thäder, Ermanno Vercellin, I. S. Zgura, Javier Ernesto Castillo Castellanos, Alexander Kluge, F.F. Guber, R. A. Soltz, A. K. Bhati, S. Huber, Sergio Di Liberto, D. I. Patalakha, Alla Maevskaya, T. S. Räihä, Dmitry Blau, C. Roy, M. Veldhoen, Alessandra Fantoni, E. Quercigh, Angela Badala, P. Ostrowski, Stefano Piano, N. Herrmann, Tatsuya Chujo, Laurent Ducroux, S. Navin, Juha Äystö, Peskov, Ionut Cristian Arsene, Arturo Tauro, K. Ma, Anton Alkin, H. Delagrange, T. Dobrowolski, A. Diaz, Girard, Michael Wang, M. I. Martínez, Nikulin, Isabel Dominguez, Xavier Bernard Lopez, Jaroslav Bielcik, Marco Monteno, H.H. Gutbrod, Paola La Rocca, Edmundo Javier Garcia-Solis, Bastian Bathen, Henrik Qvigstad, Annalisa Mastroserio, Orlando Villalobos Baillie, Jan Fiete Grosse-Oetringhaus, M. Nicassio, Igor Altsybeev, Zubayer Ahammed, Kathrin Koch, Adam Tomasz Matyja, Giacomo Vito Margagliotti, M. A. Mazzoni, Artem Konevskikh, R. Ferretti, Seyong Kim, Udo Wolfgang Kebschull, Pascal Dupieux, Andrea Dainese, Sergey Fokin, Antonio Ortiz Velasquez, L. Riccati, Maxime Guilbaud, Sami Sakari Rasanen, P. Petrov, K. Watanabe, B. Ghidini, Torsten Alt, A. Wilk, A. M. Gago, G. Ovrebekk, Y. J. Kwon, M. Mastromarco, Peter Glassel, R. N. Singaraju, Su Ahn, N. P. Naumov, Anand Kumar Dubey, Ernesto Lopez Torres, O. Driga, Iwona Anna Sputowska, RA Molina, Alessandro Ferretti, Alexey Kuryakin, Jorge Mercado Perez, Ana Maria Marin, Y. Kucheriaev, A. Nyatha, Petracek, D. Perini, S. Puchagin, Mikolaj Krzewicki, T. Krawutschke, Lizardo Valencia Palomo, F. Piuz, B. S. Nilsen, Johan Alme, Luciano Ramello, Leonid Vinogradov, T.A. Pocheptsov, Cenek Zach, M. Kim, P. I. Loenne, Thomas Michael Cormier, Anton Andronic, L. Liu, R. Lietava, Eleazar Cuautle, Sun Kun Oh, R. W. Fearick, M. Botje, Francesco Barile, P. Zelnicek, Gc Romeo, Raffaele Grosso, Manzari, Johanna Stachel, Joakim Nystrand, Veronica Canoa Roman, Luis Manuel Montano Zetina, Andrea Alici, H. J. Jang, S. Böttger, Sergio Vergara, Grabski, P. L. M. Podesta-Lerma, Nora De Marco, Sandro Bjelogrlic, Nilsson, B. Espagnon, Franco Meddi, Dmitry Aleksandrov, Xiang Zhang, Gennady Zinovjev, R. Scott, Gyulnara Eyyubova, Fatima Padilla, Dieter Røhrich, Damd Godoy, J. Wiechula, E. Crescio, Ajit Kumar Mohanty, M. Bach, Bikash Sinha, Melinda Siciliano, N. Grion, Y. Zoccarato, A. B. Kurepin, Jongik Yoon, L. K. Mangotra, Filimon Roukoutakis, G. L. Usai, Ionel Stan, M. Steinpreis, R. Romita, R. Wan, Franck Manso, X. G. Lu, S. Jangal, Hege Austrheim Erdal, Sudipan De, Sergey Nikulin, C. Petta, Y. Hori, Mikhail Malaev, Dagmar Adamová, K. Shtejer, Martin Vala, Petr Zavada, Deepika Rathee, Ildefonso Leon Monzon, Radiy Ilkaev, M. Hartig, S. Sharma, E. Chiavassa, Dai-Mei Zhou, Greeshma Koyithatta Meethaleveedu, C. Lazzeroni, R. P. Scharenberg, Christina Markert, C. Oppedisano, Saul Aguilar Salazar, Indranil Das, Pasquale Di Nezza, Branislav Sitar, Marian Krivda, Dong Jo Kim, Francesco Noferini, Yves Roland Schutz, Yawen Wang, Barthelemy von Haller, Mikhail Stolpovskiy, Andrew Ivanov, A. N. Mishra, G. Hamar, J. H. Kim, Jaroslav Adam, L. Leistam, Grigoriev, E. Dénes, Kjetil Ullaland, Rtj Bustamante, L. S. Pinsky, A. I. Pavlinov, Alexandru Bercuci, A. Piccotti, Øystein Senneset Haaland, J. H. Kang, Yasuo Miake, D. Perrino, Alexander Borissov, Grzegorz Andrzej Wilk, T. Moon, Francesco Riggi, Xiangrong Zhu, Matthias Richter, Antonio Di Mauro, Federico Ronchetti, Andre Mischke, Panagiota Foka, Motoi Inaba, C. Ivan, A. Jacholkowski, S. Radomski, Luciano Musa, C. Bergmann, M. Krelina, Palash Khan, Ivana Hrivnacova, Michal Meres, Tiziano Virgili, Igor Pshenichnov, D. Vranic, T. Pawlak, T. Susa, Carmelo Di Giglio, Davide Caffarri, I. Kraus, Pradip Kumar Sahu, M. Krus, Jan Figiel, Epdo Filho, Davide Falchieri, Werner Riegler, T.H. Kim, Nikita Smirnov, Punin, P. G. Innocenti, Airton Deppman, Jovan Milosevic, M. Estienne, Cristian Andrei, Michal Broz, Marco van Leeuwen, Yves Le Bornec, Edc Sanchez, K. Kanaki, Jochen Klein, F. Bossú, A. Szostak, Sergey Kiselev, F. Rettig, Marta Verweij, Alberto Baldisseri, Shuaib Ahmad Khan, Benjamin Donigus, Andreas Morsch, Shingo Sakai, Z. L. Matthews, A. Baldit, A. Masoni, Enrichetta Maria Fiore, A. Palmeri, Uwe Westerhoff, D. Budnikov, Rama Chandra Baral, Kenneth Francis Read, Jan Cepila, Tuva Ora Herenui Richert, A. Pesci, Sven Gotovac, J. L. Klay, A. R. Reolon, G. Viesti, J. Urban, Arturo Alejandro Menchaca-Rocha, Ewa Gladysz-dziadus, Kyong Sei Lee, Peter Strmen, Luciana Bianchi, Hans Muller, Joel Anthony Mazer, M. E. Cotallo, Yu. V. Kharlov, Eva Sicking, Nicolas Arbor, A. Adare, S. Yasnopolskiy, Alina Gabriela Grigoras, I. Garishvili, Podist Kurashvili, F. Scarlassara, Jung-Il Song, Y. P. Viyogi, Cam Tobon, B. H. Han, Christian Holm Christensen, A. V. Kazantsev, Emilia Cruz Alaniz, Federico Cindolo, F. Soramel, Johannes Peter Wessels, Gian Michele Innocenti, Christian Schmidt, Håvard Helstrup, Frederic Lefevre, Evgeny Karpechev, D. Tlusty, Alexander Mamonov, Fengchu Zhou, Constantinos Loizides, M. Mohisin Khan, I. Berceanu, Borge Svane Nielsen, Andrei Ionut Herghelegiu, Heiko Engel, B. Hicks, Antonio Uras, Linus Feldkamp, M. Kretz, C. Baumann, Csaba Soos, Cristina Terrevoli, T. C. Awes, Kyoichiro Ozawa, E. Nappi, G. Puddu, Trine Spedstad Tveter, Ivan Kisel, Rune Langøy, Filip Krizek, Ken Oyama, Claudio Geuna, C. Tagridis, Roberta Arnaldi, Ismael Cortes Maldonado, R. Varma, Z. Vilakazi, Giuseppe Simonetti, Ralf Peter Averbeck, S. Beole, A. Rakotozafindrabe, Romualdo Santoro, Gilda Scioli, T. Antičić, A. Palaha, Richa Gupta, I. E. Yushmanov, D. Berenyi, Guy Paic, Nelson Carlin Filho, Abdiel Ramirez Reyes, Alexandru Florin Dobrin, A. A.P. Suaide, Roberto Divia, S. Porteboeuf-Houssais, J.-Y. Grossiord, Lindenstruth, Yvonne Chiara Pachmayer, T. J. Humanic, Dario Berzano, J. Kral, Peter Malzacher, Mesut Arslandok, Alexei Khanzadeev, E. Stenlund, J. Lehnert, Lukasz Kamil Graczykowski, R. Kour, D. W. Kim, Jochen Gerhard, Basanta Kumar Nandi, Svein Lindal, Rishat Sultanov, Kristin Fanebust Hetland, Svetlana Kushpil, C. Cicalo, Jacek Tomasz Otwinowski, A. Sandoval, P. Pillot, Bongsoo Kim, Sangeun Lee, Ankita Goswami, You Zhou, Claudiu Cornel Schiaua, Sandra Moretto, Andrea Danu, R.J.M. Snellings, Renu Bala, Christoph Blume, Andrzej Rybicki, Ciprian Mihai Mitu, Laure Marie Massacrier, C. Søgaard, Jiebin Luo, Rene Brun, L. H. González-Trueba, Natasha Sharma, Mikhail Ippolitov, Paolo Giubellino, Pierre Vande Vyvre, David Michael Rohr, L. Manceau, A. Kolojvari, I. Sgura, Andrey Zarochentsev, T. Kalliokoski, J. Rak, C. Hadjidakis, Bogdan Theodor Rascanu, M. Masera, Markus Fasel, Fabio Filippo Colamaria, L. Sandor, Fabrizio Coccetti, Ivanov, Michal Sumbera, Giacinto de Cataldo, Hans Peter Beck, L. V. Malinina, M. Basile, R. Janik, Iouri Belikov, Thomas Dietel, M. Boccioli, Alexey Kurepin, J. Bán, Dosatsu Sakata, P. Crochet, Altini, Y. Martynov, D. P. Mahapatra, Andrei Gheata, R. Gomez, Peter Braun-Munzinger, Sanjeev Singh Sambyal, Diego Caballero Orduna, J. Ulery, Xing-Bo Yuan, E. A. R. Casula, C. D. Anson, Stefan Thomas Heckel, Ralf Keidel, Alice Zimmermann, Paraskevi Ganoti, Peter Levai, Shinhong Kim, Sara Vallero, G. Stefanini, Gergely Gabor Barnafoldi, Domenico Di Bari, M. Wilde, W. H. Trzaska, A.G. Fedunov, Ø. Djuvsland, Bedangadas Mohanty, Steffen Schreiner, Zcd Valle, Maria Vasileiou, A. M. Rossi, Junlee Kim, B. Polichtchouk, Jan de Cuveland, Arnulfo Martinez Davalos, Shiming Yang, T.M. Steinbeck, Mario Fusco Girard, Rui Ma, E. G. Ferreiro, Ckk Don, U. Frankenfeld, Kyrre Skjerdal, Adrian Sevcenco, J. D. T. Takaki, Nicolas Bock, Sergey Filchagin, Marco Bregant, Stefan Rossegger, V. R. Loggins, Loginov, Paolo Pagano, S. Pal, Jai Samuel Nielsen Salzwedel, E. Montes, F. Prino, Ruben Shahoyan, Janka Vrlakova, Panagiotis Christakoglou, Barret, Philipp Johannes Luettig, J. Bartke, K. Bugaiev, Petra Riedler, M. Venaruzzo, B. S. Chang, G. Steyn, JP Teixido, Christophe Furget, Vechernin, Alexander Philipp Kalweit, Olja Dordic, T. P. Sinha, Hanna Paulina Zbroszczyk, Catanescu, H. A. Torii, Toru Sugitate, Michele Floris, Hermes Leon Vargas, M. Gallio, D. Wang, Mas Vasquez, Anguelov, Karel Safarik, Tomoya Tsuji, J. J. Hernandez, Deepa Thomas, Myunggeun Song, Jurgen Schukraft, K. Das, Chiara Zampolli, Luke David Hanratty, Massimiliano Marchisone, J. Mlynarz, P. Rosnet, Andrey Reshetin, Marcello Lunardon, Ajr Montero, Christoph Mayer, J. Saini, L. Toscano, Amalia Pop, Imrich Szarka, Nicole Bastid, Daniel Lohner, C. Cavicchioli, Frederick Kramer, Latchezar Betev, J. J. Gaardhøje, Yasser Corrales Morales, P. A. Scott, Agneta Oskarsson, Janusz Oleniacz, Y. Berdnikov, Ana Vargas, Danthasinghe Piyarathna, Elena Bruna, Cesar Guerra Gutierrez, G. Ortona, Klaus Johannes Reygers, Dominik Fehlker, J. P. Revol, Mrd Majumdar, A. Hayrapetyan, D. Mayani, Henner Buesching, P. M. Jacobs, Govd Barros, A. Ochirov, Diego Stocco, and M. Bogolyubsky
- Subjects
Particle physics ,Signal statistics ,FOS: Physical sciences ,Electron ,01 natural sciences ,010305 fluids & plasmas ,Diffusion ,Physics::Fluid Dynamics ,0103 physical sciences ,Computer Simulation ,Rapidity ,Nuclear Experiment ,010306 general physics ,Physics ,Large Hadron Collider ,Muon ,Viscosity ,Fluid Dynamics (physics.flu-dyn) ,Physics - Fluid Dynamics ,Models, Chemical ,Transverse momentum ,High Energy Physics::Experiment ,Production (computer science) ,Gases ,Center of mass ,Rheology ,Capillary Action - Abstract
We calculate the average volumetric flux versus pressure drop of bubbles moving in a single capillary tube with varying diameter, finding a square-root relation from mapping the flow equations onto that of a driven overdamped pendulum. The calculation is based on a derivation of the equation of motion of a bubble train from considering the capillary forces and the entropy production associated with the viscous flow. We also calculate the configurational probability of the positions of the bubbles., 4 pages, 1 figure
- Published
- 2013
13. Investigation of the properties of a radial silicon drift detector in the WA93-experiment
- Author
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Hr Schmidt, H.W. Kraner, H.H. Gutbrod, B. W. Kolb, Z. Li, Wen-Chang Chen, P Steinhaeuser, Pavel Rehak, and Martin Purschke
- Subjects
Physics ,Nuclear physics ,Nuclear and High Energy Physics ,Silicon drift detector ,Test beam ,SIDD ,Physics::Instrumentation and Detectors ,Detector ,Monte Carlo method ,Measure (physics) ,High Energy Physics::Experiment ,Instrumentation ,Charged particle - Abstract
A radial 3-inch silicon drift detector (SiDD), designed by Rehak, was used in the WA93 experiment to measure the production of charged particles and to determine detector characteristics for future applications with even higher multiplicities. Beside correlations with other detectors of the WA93 experiment, a Monte Carlo model and the results of a dedicated experiment with a test beam were used to interpret the S + Au 200 A GeV data. This paper describes the experimental setup and the methods used to extract the properties of the radial SiDD.
- Published
- 1996
14. Results from the WA93 photon multiplicity detector
- Author
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S. Chatopadhyay, V. Kumar, S. Mookerjee, Shiv K. Gupta, M. D. Trivedi, B. W. Kolb, H.H. Gutbrod, S. K. Badyal, Hr Schmidt, A. C. Das, M. M. Agarwal, S. S. Sambyal, M. S. Ganti, Y. P. Viyogi, Sudhir Raniwala, S. Lokanathan, S. Kachroo, M. R. Dutta Mazumdar, V. S. Bhatia, N. K. Rao, T. C. Awes, Devanand, V. P. Viyogi, T.K. Ghosh, K. B. Bhalla, I. S. Mittra, S. K. Nayak, and Bikash Sinha
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Photon ,Detector ,Subatomic particle ,Multiplicity (chemistry) - Published
- 1995
15. Two-proton correlations in the target fragmentation region of nuclear collisions at 200A GeV
- Author
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[No Value] Otterlund, Kh Kampert, Am Poskanzer, L. Dragon, R. Glasow, R. Santo, D. Bock, H.H. Gutbrod, R. Bock, E.-M. Bohne, C. Blume, J. Idh, A. Eklund, G Holker, B Roters, S. Saini, P Steinhaeuser, [No Value] Lund, A. Claussen, G. R. Young, K. Steffens, D. Bucher, F. Berger, Ma Bloomer, Herbert Löhner, G. Clewing, M. Purschke, S. P. Sorensen, C. Barlag, S. Garpman, Peter Martin Jacobs, F. Plasil, E. Stenlund, Agneta Oskarsson, T. C. Awes, T. Peitzmann, D. Stüken, Hr Schmidt, B. W. Kolb, and F. E. Obenshain
- Subjects
Physics ,Large Hadron Collider ,Physics and Astronomy (miscellaneous) ,Proton ,Nuclear Theory ,Elementary particle ,Radius ,Particle acceleration ,Nuclear physics ,medicine.anatomical_structure ,Fragmentation (mass spectrometry) ,medicine ,Polar ,Atomic physics ,Nuclear Experiment ,Engineering (miscellaneous) ,Nucleus - Abstract
Correlations between protons are studied in the target fragmentation region of reactions of protons and16O with C, Cu, Ag, Au and of32S with Al and Au at 200A GeV. The emitted protons were measured with the Plastic Ball detector in the WA80 experiment at the CERN SPS. The comparison of the correlation function with calculations, assuming a spherical, gaussian shaped source with a lifetime τ=0 fm/c, allows the extraction of radius parameters. The values are very close to those expected from the geometry of the target nuclei and increase with the target mass as αATarget1/3. Even in proton induced reactions the whole target nucleus is involved. The dependence of the radii on centrality, polar angleθlab, and energy, and their relation to measured proton yields are presented.
- Published
- 1995
16. Photon multiplicity measurements in nucleus-nucleus collisions at 200 A GeV
- Author
-
S. K. Gupta, V. S. Bhatia, M. N. Rao, Ashim Das, Sukalyan Chattopadhyay, M. S. Ganti, S. Kachroo, Nick van Eijndhoven, Sanjeev Singh Sambyal, I. S. Mittra, S. K. Nayak, S. K. Badyal, Sudhir Raniwala, Bikash Sinha, H.H. Gutbrod, M. D. Trivedi, S. Mookerjee, S. Loknathan, B. W. Kolb, M. R. Dutta Mazumdar, N. K. Rao, Madan M. Aggarwal, Hr Schmidt, Vikas Kumar, T. K. Ghosh, Y. P. Viyogi, K. B. Bhalla, Devanand, and B. S. Garcha
- Subjects
Physics ,Nuclear physics ,Massless particle ,Nuclear reaction ,Nuclear and High Energy Physics ,Photon ,medicine.anatomical_structure ,medicine ,Elementary particle ,Multiplicity (chemistry) ,Nucleus ,Spectral line ,Boson - Published
- 1994
17. Comparison of π0 and η spectra from S + Au collisions at 200
- Author
-
F. Plasil, D. Stüken, Sergey Nikolaev, R. Glasow, Hr Schmidt, G Holker, Ma Bloomer, H. E. Wegner, L. Dragon, K. Steffens, B. Roters, E. Stenlund, O. Hansen, Herbert Löhner, R. R. Debbe, S. P. Sorensen, K. Söderström, G. R. Young, B. W. Kolb, R. K. Bock, R. Santo, G. Claesson, R. Albrecht, T. Peitzmann, P. Steinhaeuser, A. Lebedev, Agneta Oskarsson, F. E. Obenshain, A. A. Vinogradov, Mikhail Ippolitov, [No Value] Manko, [No Value] Antonenko, S. Saini, Martin Purschke, F. Berger, J. Idh, G. Clewing, T. C. Awes, B. Moskowitz, Kh Kampert, D. Bock, [No Value] Otterlund, [No Value] Lund, Am Poskanzer, Y Doubovik, K. Karadjev, Sergey Fokin, H.H. Gutbrod, S. Garpman, H. A. Gustafsson, Peter Martin Jacobs, and A. Eklund
- Subjects
Nuclear physics ,Physics ,Nuclear and High Energy Physics ,Range (particle radiation) ,Large Hadron Collider ,Transverse momentum ,Pi ,High Energy Physics::Experiment ,Invariant mass ,Nuclear Experiment ,Nucleon ,Spectral line - Abstract
Neutral pi0 and eta spectra have been obtained over a wide transverse momentum range for various centralities of S + Au collisions at 200 GeV/nucleon. The analysis was done of the full statistics of the WA80 experiment at CERN using the two-photon invariant mass spectra. Compared to the previous analysis [1, 2] the pi0 and eta spectra were obntained over an extended p(t) range of 0.2
- Published
- 1994
18. Emission of slow singly charged fragments in relativistic 16O-nucleus interactions
- Author
-
C. Baktash, Hr Schmidt, D. Stüken, L. Dragon, A. M. Poskanzer, F. Plasil, R. Albrecht, B. W. Kolb, R. K. Bock, Kh Kampert, T. Peitzmann, P. Beckmann, A. Franz, R. Santo, G. Clewing, Ma Bloomer, J. Idh, G. Claesson, Anders Nils Erik Oskarsson, Joakim Nystrand, Herbert Löhner, S. P. Sorensen, F. Berger, D. Bock, B. Roters, I. Lund, R. Glasow, I. Otterlund, G Holker, Martin Purschke, T. C. Awes, K. Steffens, F. E. Obenshain, G. R. Young, S. Saini, R. L. Ferguson, S. Garpman, H. A. Gustafsson, K. Söderstöm, Peter Martin Jacobs, H. G. Ritter, P. Steinhaeuser, Evert Anders Stenlund, H.H. Gutbrod, and A. Eklund
- Subjects
Physics ,Nuclear and High Energy Physics ,Nuclear Theory ,TRANSVERSE ENERGY ,HEAVY-ION INTERACTIONS ,Nuclear interaction ,WA80 ,Angular distribution ,medicine.anatomical_structure ,PROTONS ,medicine ,Atomic physics ,Multiplicity (chemistry) ,Nuclear Experiment ,Nucleus ,TARGET FRAGMENTATION ,EMULSION ,Multiplicity distribution ,200 GEV/NUCLEON - Abstract
Multiplicity distributions of slow singly charged target fragments from O-16 induced reactions on C, Cu, Ag and Au are studied at 60 and 200 A GeV. The distributions from the two energies are essentially the same. Energy and angular distributions for slow protons are revealing the important role of cascading and rescattering in the spectator matter. The target dependence of the multiplicity of slow fragments exceeds A(T)2/3 for the heaviest targets.
- Published
- 1993
19. Production of slow singly charged fragments in 200 GeV/c hadron nucleus interactions
- Author
-
Hr Schmidt, D. Bock, C. Baktash, A. M. Poskanzer, F. Berger, R. Albrecht, D. Stüken, H.H. Gutbrod, T. C. Awes, T. Peitzmann, B. Roters, I. Lund, Karl-Heinz Kampert, A. Eklund, Felix E. Obenshain, B. W. Kolb, Evert Anders Stenlund, G. Clewing, G. R. Young, I. Otterlund, K. Steffens, S. P. Sørensen, H. G. Ritter, J. Idh, S. Saini, P. Steinhaeuser, R. K. Bock, Herbert Löhner, F. Plasil, S. Garpman, Ma Bloomer, H. A. Gustafsson, R. Glasow, G. Claesson, M. Purschke, L. Dragon, Peter Martin Jacobs, G Holker, A. Franz, Anders Nils Erik Oskarsson, R. L. Ferguson, P. Beckmann, R. Santo, and KVI - Center for Advanced Radiation Technology
- Subjects
Physics ,COLLISIONS ,Particle physics ,Physics and Astronomy (miscellaneous) ,Proton ,Nuclear Theory ,Hadron ,Elementary particle ,Nuclear physics ,NUMBER ,WA80 ,medicine.anatomical_structure ,Pion ,Cascade ,PROTONS ,medicine ,SPECTROMETER ,Rapidity ,Multiplicity (chemistry) ,Nuclear Experiment ,Engineering (miscellaneous) ,Nucleus - Abstract
Measurements of, slow, singly charged fragments in the target rapidity region have been performed for proton and pion induced reactions with various nuclei at 200 GeV/c. Multiplicity, angular and energy distributions are examined and used to study the effects of rescattering in the nuclear medium. Data are compared to a ''geometric cascade model' and to simulations with the VENUS 3.11 and the FRITIOF 1.7 Monte Carlo codes.
- Published
- 1993
20. Photon and neutral meson data from the collision of 200 A · GeV sulphur ions with gold targets
- Author
-
R. Albrecht, Vladislav Manko, T. Peitzmann, Mikhail Ippolitov, D. Stüken, K. Steffens, I. Lundf, Kh Kampert, J. Idh, A. A. Vinogradov, T. C. Awes, Hr Schmidt, H. Wegener, O. Hansen, S. P. Sorensen, I. Otterlund, Agneta Oskarsson, R. Glasow, G. R. Young, A. Franz, A.L. Lebedev, G. Claesson, S. Saini, S. Garpman, R. R. Debbe, G Holker, L. Dragon, A. M. Poskanzer, B. Moskowitz, H. A. Gustafsson, B. W. Kolb, H. G. Ritter, F. Berger, Herbert Löhner, E. Stenlund, Peter Martin Jacobs, D. Bock, P. Steinhaeuser, G. Clewing, Ma Bloomer, R. L. Ferguson, M. Purschke, B. Roters, K. Karadjev, Sergey Fokin, H.H. Gutbrod, A. Eklund, Felix E. Obenshain, R. K. Bock, F. Plasil, R. Santo, and P. Beckmann
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Photon ,Spectrometer ,Meson ,Collision ,Spectral line ,Ion ,Nuclear physics ,Lead glass ,visual_art ,visual_art.visual_art_medium ,Invariant mass ,Nuclear Experiment - Abstract
Using a 3790 module lead glass photon spectrometer π° and η mesons have been measured in 200 A · GeV S + Au collisions by invariant mass reconstruction. Centrality selected transverse momentum π° spectra have been obtained for 0.5 ≤ pT ≤ 4.0 GeV/c displaying a much flatter slope for central compared to peripheral data. The problems of extracting single photon to π° yields from the data are discussed and the total error of their determination is given for present and future experiments. It is concluded that an accuracy of about 7 % can be obtained in the γπ° ratio.
- Published
- 1993
21. Target fragmentation in proton and heavy-ion induced reactions at high energies
- Author
-
I. Lund, F. Berger, Ma Bloomer, S. Garpman, M. Purschke, L. Dragon, C. Blume, J. Idh, H. A. Gustafsson, Anders Nils Erik Oskarsson, G. Clewing, Evert Anders Stenlund, Peter Martin Jacobs, S. P. Sorensen, A. Franz, B. Roters, G. R. Young, A. M. Poskanzer, K. Steffens, H.H. Gutbrod, R. Albrecht, R. K. Bock, R. L. Ferguson, I. Otterlund, A. Eklund, Felix E. Obenshain, R. Santo, P. Beckmann, D. Bock, R. Glasow, G Holker, S. Saini, G. Claesson, T. C. Awes, Herbert Löhner, Karl-Heinz Kampert, F. Plasil, H. G. Ritter, P. Steinhaeuser, B. W. Kolb, Hr Schmidt, T. Peitzmann, and D. Stüken
- Subjects
Physics ,Nuclear and High Energy Physics ,Proton ,Nuclear Theory ,Nuclear physics ,Interferometry ,medicine.anatomical_structure ,Pion ,Fragmentation (mass spectrometry) ,Pseudorapidity ,Excited state ,medicine ,Heavy ion ,Atomic physics ,Nuclear Experiment ,Nucleus - Abstract
Results on pseudorapidity distributions, azimuthal correlations, and on two particle interferometry for identified protons and pions measured in the target fragmentation region of high energy proton-nucleus and nucleus-nucleus collisions are presented. Full participation of the whole target nucleus is observed even for 200 GeV p + Au collisions. Incorporation of strong rescattering phenomena into string models, including pion absorption effects in excited target matter, provides a good description of most experimental data.
- Published
- 1993
22. Multiplicity and pseudorapidity distributions of charged particles from32S induced heavy ion interactions at 200A GeV
- Author
-
F. E. Obenshain, G. R. Young, P. Beckmann, R. Santo, [No Value] Lund, L. Dragon, Evert Anders Stenlund, S. Garpman, Ml Purschke, R. Albrecht, T. Peitzmann, H. A. Gustafsson, Hr Schmidt, B. Roters, R. K. Bock, H.H. Gutbrod, H. G. Ritter, Peter Martin Jacobs, R. Glasow, G. Claesson, C. Baktash, Anders Nils Erik Oskarsson, A. Eklund, F. Plasil, R. L. Ferguson, J. Idh, S. Saini, G Holker, A. Franz, Ma Bloomer, D. Stüken, Herbert Löhner, G. Clewing, Kh Kampert, T. C. Awes, B. W. Kolb, K. Steffens, P Steinhaeuser, [No Value] Otterlund, Am Poskanzer, F. Berger, D. Bock, and S. P. Sorensen
- Subjects
Physics ,Particle physics ,Large Hadron Collider ,Physics and Astronomy (miscellaneous) ,Charged particle ,Nuclear physics ,Transverse plane ,Pseudorapidity ,High Energy Physics::Experiment ,Heavy ion ,Rapidity ,Multiplicity (chemistry) ,Nuclear Experiment ,Engineering (miscellaneous) ,Particle Physics - Experiment - Abstract
Multiplicity and pseudorapidity distributions have been measured for32S+Al, Cu, Ag and Au at 200A GeV. The widths of the pseudorapidity distributions increase from central to peripheral collisions. The main contribution is assumed to come from the increasing fraction of charged particles stemming from the fragmentation of the target for peripheral collisions as compared to central collisions. On the average 170–180 charged particles per unit of pseudorapidity are attained for the most central32S+Au events at the maximum of the distribution. The target dependence of the yield of charged particles for central collisions is investigated. In the target rapidity region the yield is directly proportional to the target mass. The transverse energy per charged particle has been studied as a function of centrality and pseudorapidity. The experimental results are compared to the results from the Monte-Carlo model VENUS 3.11 which includes rescattering among secondaries. A comparison between different centrality triggers is made.
- Published
- 1992
23. Pion-source geometry deduced from soft-pion interferometry in heavy-ion collisions at 650 A MeV
- Author
-
K.G.R. Doss, W. Wiślicki, Kh Kampert, I. Lund, H.H. Gutbrod, R. Bock, T. Siemiarczuk, Hr Schmidt, and B. W. Kolb
- Subjects
Physics ,Nuclear and High Energy Physics ,Nuclear Theory ,Niobium ,chemistry.chemical_element ,Radius ,Nuclear physics ,Interferometry ,Transverse plane ,Pion ,medicine.anatomical_structure ,chemistry ,medicine ,Physics::Accelerator Physics ,Nuclear fusion ,Heavy ion ,Atomic physics ,Nuclear Experiment ,Nucleus - Abstract
We report transverse,RT, and longitudinal,RL, source sizes extracted from two-pion interferometry analysis in the Au+Au and Nb + Nb interactions at 650 A MeV. For the Nb+Nb interactions, both,RT andRL, do not exceed the niobium nucleus radius. In the case of Au+Au collisions, the transverse size is larger than the longitudinal one being about 12 fm for the selection ofPπ+ < 120 MeV/c. We also corroborate the existence of the previously reported specific three-pion correlations.
- Published
- 1992
24. Intermittency in 200 GeV/nucleon S+S collisions
- Author
-
P. Steinhauser, S. Garpman, S. P. Sorensen, H. A. Gustafsson, P. Jacobs, A. Twyhues, R. Bock, H. G. Ritter, T. C. Awes, S. Fokin, B. W. Kolb, A. Franz, R. Santo, R. L. Ferguson, B. Moskowitz, M Ippolitov, [No Value] Otterlund, D. Stüken, K. Karadjev, Am Poskanzer, L. Dragon, R. Albrecht, F. Plasil, K. Steffens, G. Clewing, F. Berger, B. Roters, J. Idh, O. Hansen, Herbert Löhner, Hr Schmidt, Alexander Vinogradov, S. Saini, G. R. Young, R. Glasow, G. Claesson, M. Hartig, Kh Kampert, P. Beckmann, [No Value] Lund, D. Bock, Evert Anders Stenlund, A. Eklund, Ma Bloomer, H.H. Gutbrod, M. Purschke, R. Debbe, A.L. Lebedev, G Holker, T. Peitzmann, K. Söderström, [No Value] Manko, F. E. Obenshain, and Anders Nils Erik Oskarsson
- Subjects
Nuclear reaction ,Physics ,Nuclear and High Energy Physics ,Particle physics ,Large Hadron Collider ,Physics::Instrumentation and Detectors ,Hadron ,Elementary particle ,law.invention ,Nuclear physics ,law ,Intermittency ,Phase space ,High Energy Physics::Experiment ,Nuclear Experiment ,Nucleon ,Event generator - Abstract
We have studied one and two-dimensional intermittency in S+S collisions at 200 GeV/nucleon in a high statistics electronic measurement at the CERN SPS using pad-readout streamer tubes. We observe no intermittency signal beyond that produced by folding the Fritiof event generator with a detailed model of our detector. Even though the observed signal contains significant distortions due to experimental effects, we show that we are sensitive to intermittency in the collision.
- Published
- 1992
25. Pion absorption in excited nuclear matter
- Author
-
T. Peitzmann, F. Berger, H.H. Gutbrod, Hr Schmidt, A. Eklund, P. Kristiansson, G. Clewing, M. L. Tincknell, [No Value] Otterlund, Am Poskanzer, A. Franz, T. Siemiarczuk, J. Idh, F. Plasil, S. Saini, S. P. Sorensen, Kh Kampert, G. Claesson, F. E. Obenshain, Herbert Löhner, Evert Anders Stenlund, T. C. Awes, R. Albrecht, [No Value] Lund, H. G. Ritter, B. W. Kolb, Anders Nils Erik Oskarsson, R. L. Ferguson, G. R. Young, C. Baktash, S. Garpman, H. A. Gustafsson, Peter Martin Jacobs, R. Bock, I. Y. Lee, R. Glasow, Stefan Persson, M. Purschke, L. Dragon, P. Beckmann, R. Santo, and University of Groningen
- Subjects
Nuclear physics ,Physics ,Nuclear and High Energy Physics ,Pion ,Excited state ,Nuclear Theory ,High Energy Physics::Experiment ,Atomic physics ,Nuclear Experiment ,Absorption (electromagnetic radiation) ,Nuclear matter ,Particle Physics - Experiment - Abstract
The target dependence and azimuthal correlations of protons and pions are investigated for pA reactions at 4.9, 60 and 200 GeV. The experimental observations can be understood qualitatively under the assumption that pions are absorbed in excited target spectator matter.
- Published
- 1992
26. Bose-einstein correlations in the target fragmentation region in 200A GeV16O+nucleus collisions
- Author
-
B. Roters, Herbert Löhner, Kh Kampert, P. Steinhauser, A. Franz, L. Dragon, P. Beckmann, R. Santo, Per Kristiansson, J. Idh, S. Garpman, I. Lund, E. Stenlund, T. Peitzmann, D. Stüken, H. A. Gustafsson, S. Saini, Ma Bloomer, R. Albrecht, F. Plasil, Agneta Oskarsson, D. Bock, F. Berger, G. Clewing, Peter Martin Jacobs, M. Purschke, R. Schmidt, R. K. Bock, R. Glasow, G. Claesson, M. L. Tincknell, A. Twyhues, M. Hartig, G. R. Young, H.H. Gutbrod, Stefan Persson, B. W. Kolb, H. G. Ritter, S. P. Sørensen, A. Eklund, Felix E. Obenshain, Hr Schmidt, G Holker, R. L. Ferguson, K. Steffens, I. Otterlund, T. C. Awes, and A. M. Poskanzer
- Subjects
Physics ,Nuclear reaction ,Physics and Astronomy (miscellaneous) ,Nuclear Theory ,Hadron ,Elementary particle ,Bose–Einstein correlations ,Radius ,Nuclear physics ,symbols.namesake ,Pion ,Pair production ,Bose–Einstein statistics ,symbols ,Nuclear Experiment ,Engineering (miscellaneous) - Abstract
Correlations between positive pions are investigated in the target fragmentation region of 200A GeV16O+nucleus collisions. The pions are measured with the Plastic Ball detector in the WA80 experiment at the CERN SPS. The target mass dependence of the radii and the correlation strength extracted by interferometry is studied. A new approach to the fit of the correlation function is introduced. The correlation strength and both invariant and transverse radii increase with decreasing target mass. The transverse radius for16O+C reactions appears to be much larger than the geometrical radius of the nuclei involved. For the Au target only a small fraction of the measured pions contributes to the apparent correlation. Hints for a much larger second component in16O+Au reactions are observed. Rescattering phenomena may provide a clue to understand these phenomena.
- Published
- 1992
27. Distributions of transverse energy and forward energy in−16andinduced32heavy ion collisions at 60Aand 200AGeV
- Author
-
Hr Schmidt, F. Plasil, C. Baktash, I. Otterlund, I. Lund, S. P. Sorensen, T. Siemiarczuk, Martin Purschke, G. R. Young, H.A. Gustafsson, B. W. Kolb, I. Y. Lee, A. Franz, T. C. Awes, M. L. Tincknell, R. K. Bock, Per Kristiansson, G. Claesson, S. Garpman, T. Peitzmann, G. Clewing, Kh Kampert, Peter Martin Jacobs, R. L. Ferguson, H.H. Gutbrod, A. Eklund, Felix E. Obenshain, E. Stenlund, A. M. Poskanzer, H. G. Ritter, F. Berger, R. Glasow, J. Idh, Stefan Persson, L. Dragon, S. Saini, R. Albrecht, Agneta Oskarsson, H. Loehner, P. Beckmann, and R. Santo
- Subjects
Nuclear reaction ,Physics ,Nuclear and High Energy Physics ,Nuclear Theory ,Nuclear physics ,Strange matter ,Transverse plane ,Distribution function ,Stopping power (particle radiation) ,High Energy Physics::Experiment ,Atomic physics ,Nuclear Experiment ,Centrality ,Glauber ,Energy (signal processing) - Abstract
Distributions of transverse energy, forward energy, and ${\mathit{dE}}_{\mathit{T}}$/d\ensuremath{\eta} from 60A GeV and 200A GeV $^{16}\mathrm{induced}$ and 200A GeV $^{32}\mathrm{induced}$ nuclear collision with C, Al, Cu, Ag, and Au are presented. The energy, projectile, target, and centrality dependences are shown and discussed within a simple Glauber spectator-participant model. Two universal parametrizations of the ${\mathit{dE}}_{\mathit{T}}$/d\ensuremath{\eta} distributions are presented together with various estimates of the nuclear stopping power and attained energy densities. An upper limit for ${\ensuremath{\gamma}}_{\mathrm{direct}}$/${\mathrm{\ensuremath{\pi}}}^{0}$ in central collisions of 200A GeV $^{32}\mathrm{S}$${+}^{197}$Au is derived.
- Published
- 1991
28. Search for direct photons in heavy-ion collisions
- Author
-
A. Franz, J. Idh, A. M. Poskanzer, R. Bock, T. C. Awes, D. Bock, D. Stüken, I. Lund, M. L. Tincknell, I. Otterlund, S. P. Sørensen, R. Albrecht, P. Beckmann, S. Garpman, F. Berger, G. Hölker, R. Santo, B. W. Kolb, H. G. Ritter, G. Claesson, K. H. Kampert, K. Steffens, E. Stenlund, Hr Schmidt, A. Ekiund, A. Oskarsson, G. Clewing, Herbert Löhner, S. Saini, R. Glasow, T. Peitzmann, P. Jacobs, M. Purschke, F. Plasil, H.H. Gutbrod, Felix E. Obenshain, G. R. Young, R. L. Ferguson, H. A. Gustafsson, and L. Dragon
- Subjects
Physics ,Nuclear and High Energy Physics ,Photon ,Spectrometer ,Nuclear Theory ,Hadron ,Monte Carlo method ,Spectral line ,Nuclear physics ,Pion ,Pseudorapidity ,Quark–gluon plasma ,High Energy Physics::Experiment ,Atomic physics ,Nuclear Experiment - Abstract
A search for direct photon production has been performed using p and 16O projectiles at 60 and 200 A-GeV interacting with a C and a Au target. Photon and π0 spectra have been measured in the pseudorapidity range 1.5 ⩽ η ⩽ 2.1 for the transverse momentum region 0.4 GeV/c ⩽ PT ⩽ 3 GeV/c with the lead-glass spectrometer SAPHIR. An upper limit of 15 % at the 90 % CL for the direct photon signal relative to the neutral pion production is obtained from the measured photon spectra and the Monte Carlo simulations of the hadronic background based on reconstructed π0 and η spectra. Consequences for a possible phase transition to a quark-gluon plasma (QGP) are discussed.
- Published
- 1991
29. Wa80 multiplicity results at 200 A GeV
- Author
-
Kh Kampert, Agneta Oskarsson, T. C. Awes, D. Stüken, C. Baktash, R. Glasow, R. L. Ferguson, Stefan Persson, I. Otterlund, J. Idh, Hr Schmidt, F. Plasil, K. Steffens, I. Y. Lee, S. Garpman, A. Franz, G. Clewing, A. M. Poskanzer, H. A. Gustafsson, E. Stenlund, G. R. Young, I. Lund, F. Berger, Peter Martin Jacobs, M. L. Tincknell, S. P. Sorensen, S. Saini, H. G. Ritter, R. Albrecht, B. W. Kolb, H.H. Gutbrod, A. Eklund, M. Purschke, P. Beckmann, R. Santo, L. Dragon, Herbert Löhner, T. Siemiarczuk, F. E. Obenshain, R. K. Bock, G. Claesson, T. Peitzmann, and Per Kristiansson
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Low energy ,Large Hadron Collider ,Multiplicity results ,Pseudorapidity ,Detector ,Multiplicity (chemistry) - Abstract
Multiplicity results are presented from the WA80 setup at CERN. Pseudorapidity, η, and multiplicity distributions from 32 S induced reactions in the interval −1.7〈η〈4.0 are shown. The role of low energy protons in p + A interactions is investigated using the Plastic Ball detector covering −1.7〈η〈1.0 and the Midrapidity Calorimeter (MIRAC) in the interval 2.4〈η〈5.5.
- Published
- 1991
30. Bose-Einstein correlations in the target fragmentation region of 200 A GEV 16O + nucleus collisions
- Author
-
F. Berger, S. Garpman, H. A. Gustafsson, Peter Martin Jacobs, A. Twyhues, T. C. Awes, M. L. Tincknell, K. Steffens, R. L. Ferguson, I. Otterlund, L. Dragon, H.H. Gutbrod, G. R. Young, Per Kristiansson, T. Peitzmann, E. Stenlund, P. Beckmann, R. Santo, A. Eklund, A. Franz, J. Idh, D. Bock, Felix E. Obenshain, M. Hartig, H. G. Ritter, I. Lund, R. Albrecht, B. Roters, A. M. Poskanzer, Agneta Oskarsson, Kh Kampert, S. P. Sørensen, Herbert Löhner, Ma Bloomer, M. Purschke, R. Schmidt, R. Glasow, G. Claesson, Stefan Persson, G Holker, R. K. Bock, G. Clewing, P. Steinhauser, S. Saini, B. W. Kolb, D. Stüken, Hr Schmidt, and F. Plasil
- Subjects
Physics ,Nuclear and High Energy Physics ,Nuclear Theory ,Elementary particle ,Bose–Einstein correlations ,Radius ,Particle acceleration ,Nuclear physics ,Transverse plane ,medicine.anatomical_structure ,Pion ,Fragmentation (mass spectrometry) ,medicine ,Atomic physics ,Nuclear Experiment ,Nucleus - Abstract
Correlations between positive pions are investigated in the target fragmentation region of 200A GeV16O+nucleus collisions. The pions are measured with the Plastic Ball detector in the WA80 experiment at the CERN SPS. The target mass dependence of the radii and the correlation strength extracted by interferometry is studied. A new approach to the fit of the correlation function is introduced. The correlation strength and both invariant and transverse radii increase with decreasing target mass. The transverse radius for16O+C reactions appears to be much larger than the geometrical radius of the nuclei involved. For the Au target only a small fraction of the measured pions contributes to the apparent correlation. Hints for a much larger second component in16O+Au reactions are observed. Rescattering phenomena may provide a clue to understand these phenomena.
- Published
- 1991
31. Suppression of High-pTNeutral Pion Production in CentralPb+PbCollisions atsNN=17.3 GeVRelative top+Candp+PbCollisions
- Author
-
K. Söderström, S. Pavliouk, C. Roy, H. Kalechofsky, H. Naef, A. Nianine, S. Bathe, V. S. Bhatia, K. Karadjev, Michal Sumbera, Y. P. Viyogi, P. Steinberg, Teodor Siemiarczuk, Joakim Nystrand, Sergey Fokin, S. P. Sorensen, T. H. Shah, T. Peitzmann, K. B. Bhalla, German Martinez, Peter M. Nilsson, M. R. Dutta Majumdar, V. Astakhov, M. J. Mora, L. Tykarski, A.S. Vodopianov, T. Mukhanova, Shunji Nishimura, A.L.S. Angelis, Frank Jm Geurts, A. Kugler, M. Rammler, MV Manzano Martin, Petr Nomokonov, B.N. Gus'kov, Sukalyan Chattopadhyay, R. Kamermans, Bedangadas Mohanty, R. Glasow, T. Bernier, V. Arefiev, J. Rak, T. C. Awes, Anand Kumar Dubey, K. Enosawa, Rashmi Raniwala, Christoph Blume, E. Stenlund, M. S. Ganti, Ivana Hrivnacova, D. P. Morrison, F. Retiere, H. Delagrange, G.S. Shabratova, H.H. Gutbrod, Gerrit Jan van Nieuwenhuizen, Basanta Kumar Nandi, S. Garpman, P. W. Stankus, Vladislav Manko, Sanjeev Singh Sambyal, O. P. Gavrishchuk, Herbert Löhner, H. A. Gustafsson, D. P. Mahapatra, P. Donni, D. Bucher, G. Stefanek, Yasuo Miake, A. Lebedev, G. R. Young, Hr Schmidt, Krzysztof Karpio, D. Y.-U. Peressounko, Zubayer Ahammed, L. Rosselet, S. K. Badyal, Agneta Oskarsson, G. Sood, Bikash Sinha, D. Mukhopadhyay, N. K. Rao, G. C. Mishra, R. Santo, Gunther Roland, L. Luquin, Klaus Johannes Reygers, T. K. Nayak, A. Maximov, Sudhir Raniwala, Mikhail Ippolitov, Sergey Nikolaev, J. M. Rubio, F. Plasil, I. Sibiriak, H. Büsching, M. Kurata, W. Pinganaud, V. Nikitine, T. Svensson, S. K. Nayak, B. W. Kolb, S. C. Phatak, I. Roufanov, S. Vörös, A. A. Vinogradov, B. Batiounia, P. Kulinich, Nikolai V Slavine, A. A. Tsvetkov, Bolek Wyslouch, E. C. v. d. Pijll, Martin Purschke, Madan M. Aggarwal, Susumu Sato, K. El Chenawi, N. v. Eijndhoven, V. Avdeitchikov, M. P. Decowski, I. Koutcheryaev, P.V.K.S. Baba, C. Baumann, I. Otterlund, Yves Roland Schutz, V.G. Antonenko, H. Schlagheck, I. Kosarev, T. K. Ghosh, D. Silvermyr, Vladimir Frolov, V. Petráček, and Lars Carlén
- Subjects
Physics ,Particle physics ,Pion ,010308 nuclear & particles physics ,Astrophysics::High Energy Astrophysical Phenomena ,0103 physical sciences ,Transverse momentum ,General Physics and Astronomy ,Production (computer science) ,Nuclear Experiment ,010306 general physics ,01 natural sciences - Abstract
Neutral pion transverse momentum spectra were measured in $p+\mathrm{C}$ and $p+\mathrm{Pb}$ collisions at $\sqrt{{s}_{NN}}=17.4\text{ }\text{ }\mathrm{GeV}$ at midrapidity ($2.3\ensuremath{\lesssim}{\ensuremath{\eta}}_{\mathrm{lab}}\ensuremath{\lesssim}3.0$) over the range $0.7\ensuremath{\lesssim}{p}_{T}\ensuremath{\lesssim}3.5\text{ }\text{ }\mathrm{GeV}/c$. The spectra are compared to ${\ensuremath{\pi}}^{0}$ spectra measured in $\mathrm{Pb}+\mathrm{Pb}$ collisions at $\sqrt{{s}_{NN}}=17.3\text{ }\text{ }\mathrm{GeV}$ in the same experiment. For a wide range of $\mathrm{Pb}+\mathrm{Pb}$ centralities (${N}_{\mathrm{part}}\ensuremath{\lesssim}300$), the yield of ${\ensuremath{\pi}}^{0}$'s with ${p}_{T}\ensuremath{\gtrsim}2\text{ }\text{ }\mathrm{GeV}/c$ is larger than or consistent with the $p+\mathrm{C}$ or $p+\mathrm{Pb}$ yields scaled with the number of nucleon-nucleon collisions (${N}_{\mathrm{coll}}$), while for central $\mathrm{Pb}+\mathrm{Pb}$ collisions with ${N}_{\mathrm{part}}\ensuremath{\gtrsim}350$, the ${\ensuremath{\pi}}^{0}$ yield is suppressed.
- Published
- 2008
32. Nucleus-nucleus collisions at 60 to 200 GeV/nucleon: Results from the WA80 experiment at CERN
- Author
-
C. Baktash, K. Steffens, I. Lund, F. Berger, H.H. Gutbrod, Kh Kampert, F. Plasil, L. Dragon, R. K. Bock, A. Eklund, I. Otterlund, T. Siemiarczuk, F.E. Obenshain, A. Franz, Agneta Oskarsson, S.P. Sorensen, G.R. Young, R. Glasow, J. Idh, Herbert Löhner, P. Beckmann, R. Santo, Stefan Persson, R.L. Ferguson, G. Clewing, B. W. Kolb, A. M. Poskanzer, Hr Schmidt, G. Claesson, M. Purschke, P. Kristiansson, M. L. Tincknell, T. Peitzmann, T.C. Awes, H. G. Ritter, D. Stüken, R. Albrecht, S. Garpman, H. A. Gustafsson, Peter Martin Jacobs, S. Saini, E. Stenlund, and I.Y. Lee
- Subjects
Nuclear reaction ,Physics ,Nuclear and High Energy Physics ,Particle physics ,Photon ,Large Hadron Collider ,Meson ,Nuclear Theory ,Hadron ,Elementary particle ,Nuclear physics ,Pion ,High Energy Physics::Experiment ,Nuclear Experiment ,Nucleon - Abstract
Results from 16 O- and 32 S-induced reactions obtained by the WA80 collaboration at the CERN SPS are presented with reference to global event characteristics such as collision geometry, the degree of nuclear stopping, and the energy density attained. Transverse momentum spectra of neutral pions and of direct photons are also presented. At an accuracy within 15% limits, all observed photons are accounted for by known hadronic decays.
- Published
- 1990
33. Transverse energy production in the target fragmentation region in16O-nucleus reactions at 60 and 200A GeV
- Author
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I. Otterlund, S. P. Sorenseh, Kh Kampert, R. L. Ferguson, P. Beckmann, R. Santo, G. R. Young, S. Garpman, H.H. Gutbrod, H. G. Ritter, Herbert Löhner, H. A. Gustafsson, A. M. Poskanzer, A. Eklund, Felix E. Obenshain, F. Berger, Peter Martin Jacobs, R. Glasow, Stefan Persson, Per Kristiansson, C. Baktash, F. Plasil, M. L. Tincknell, E. Stenlund, I. Y. Lee, L. Dragon, Agneta Oskarsson, G. Clewing, T. Peitzmann, T. Siemiarczuk, T. C. Awes, M. Purschke, R. K. Bock, B. W. Kolb, Hr Schmidt, A. Franz, G. Claesson, R. Albrecht, S. Saini, J. Idh, and I. Lund
- Subjects
Physics ,Physics and Astronomy (miscellaneous) ,Nuclear Theory ,Baryon ,Nuclear physics ,Transverse plane ,medicine.anatomical_structure ,Pion ,Fragmentation (mass spectrometry) ,Cascade ,medicine ,Atomic physics ,Nuclear Experiment ,Engineering (miscellaneous) ,Nucleus - Abstract
Charged pion yields and transverse energies of baryons are measured for the reaction16O+Cu, Ag, Au at 60 and 200A GeV bombarding energy in the target fragmentation region employing the Plastic Ball detector. Only little dependence of the measured quantities on the bombarding energy is found. The data are compared with the multi-chain fragmentation model of Ranft. As a result it turns out that a leading order formation zone cascade is not sufficient to explain the baryon yield and the transverse energies of baryons in the target fragmentation region.
- Published
- 1990
34. Transverse momentum distributions of neutral pions from central and peripheral16O+Au collisions at 200A·GeV
- Author
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C. Baktash, I. Y. Lee, F. Berger, G. Claesson, I. Otterlund, Kh Kampert, R. L. Ferguson, G. Clewing, F. E. Obershain, I. Lund, R. Albrecht, S. Garpman, A. M. Poskanzer, M. Purschke, H. A. Gustafsson, R. Glasow, Stefan Persson, G. R. Young, Agneta Oskarsson, R. K. Bock, H.H. Gutbrod, T. C. Awes, L. Dragon, T. Peitzmann, T. Siemiarczuk, Herbert Löhner, P. Beckmann, R. Santo, Per Kristiansson, S. P. Sørensen, E. Stenlund, F. Plasil, H. G. Ritter, Hr Schmidt, B. W. Kolb, and A. Franz
- Subjects
Physics ,Particle physics ,Range (particle radiation) ,Pion ,Physics and Astronomy (miscellaneous) ,Pseudorapidity ,Transverse momentum ,High Energy Physics::Experiment ,Nuclear Experiment ,Engineering (miscellaneous) ,Particle Physics - Experiment ,Spectral line - Abstract
The production of neutral pions by the interaction of 200A·GeV p and16O projectiles with a Au target has been studied in the pseudorapidity range 1.5≦η≦2.1. Transverse momentum spectra have been measured between 0.4 GeV/c and 3.6 GeV/c and their dependence on the centrality of the collision has been investigated. The peripheral-collision spectra display a marked change of slope with a hard component starting at about 1.8 GeV/c, in contrast to central-collision data. The data are discussed in comparison to p+p and α+α data from the ISR.
- Published
- 1990
35. Results from the WA80 experiment
- Author
-
Agneta Oskarsson, R. Glasow, R. Albrecht, Stefan Persson, R. K. Bock, I. Lund, T. C. Awes, C. Baktash, E. Stenlund, H. G. Ritter, H. A. Gustafsson, I. Y. Lee, T. Peitzmann, A. M. Poskanzer, B. W. Kolb, I. Otterlund, F. Berger, S. P. Sørensen, F. Plasil, G. R. Young, S. Garpman, Hr Schmidt, R. L. Ferguson, A. Franz, G. Claesson, T. Siemiarczuk, P. Beckmann, R. Santo, H.H. Gutbrod, Karl-Heinz Kampert, Felix E. Obenshain, G. Clewing, M. Purschke, L. Dragon, Herbert Löhner, and P. Kristiansson
- Subjects
Physics ,Nuclear and High Energy Physics ,Proton ,Nuclear Theory ,Atomic and Molecular Physics, and Optics ,Spectral line ,Nuclear physics ,Transverse plane ,Pion ,Cascade ,Energy density ,Rapidity ,Atomic physics ,Nuclear Experiment ,Energy (signal processing) - Abstract
Results from the WA80 experiment on transverse energy production, proton and neutral pion distributions in 60 and 200 A. GeV heavy ion reactions are presented. Energy density estimates are given. The target dependence of the transverse energy produced in the target region is investigated. Proton distributions at target rapidity are compared with a model containing an intra-nuclear cascade. The differences between the π0 pT spectra in central and peripheral collisions are shown.
- Published
- 1990
36. Rapidity distributions of Ca+Ca, Nb+Nb, Ne+Au and Au+Au at bombarding energies from 250 to 2100 MeV/nucleon
- Author
-
H.H. Gutbrod, B. W. Kolb, Hr Schmidt, Arthur M. Poskanzer, Karl-Heinz Kampert, and H. G. Ritter
- Subjects
Tolerable Level ,Physics ,Nuclear and High Energy Physics ,Range (particle radiation) ,Projectile ,Nuclear Theory ,Niobium ,chemistry.chemical_element ,Nuclear physics ,Neon ,chemistry ,Nuclear fusion ,Rapidity ,Atomic physics ,Nuclear Experiment ,Cardiology and Cardiovascular Medicine ,Nucleon - Abstract
We present experimental rapidity distributions dN ch/dy over a wide range of bombarding energies and projectile and target masses. Target and projectile spectators are observed for peripheral collisions but not for the most central collisions. This behavior is found for all systems and bombarding energies investigated. Although detector inefficiencies tend to distort the experimental distributions, they are on a tolerable level and do not remove sensitivity to theoretical descriptions.
- Published
- 1990
37. Search for disoriented chiral condensates in 158.A GeV Pb + Pb collisions
- Author
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Tapan K. Nayak, M.M. Aggarwal, A. Agnihotri, Z. Ahammed, A.L.S. Angelis, V. Antonenko, V. Arefiev, V. Astakhov, V. Avdeitchikov, T.C. Awes, P.V.K.S. Baba, S.K. Badyal, A. Baldine, L. Barabach, C. Barlag, S. Bathe, B. Batiounia, T. Bernier, K.B. Bhalla, V.S. Bhatia, C. Blume, R. Bock, E.-M. Bohne, D. Bucher, A. Buijs, E.-J. Buis, H. Büsching, L. Carlen, V. Chalyshev, S. Chattopadhyay, K.E. Chenawi, R. Cherbatchev, T. Chujo, A. Claussen, A.C. Das, M.P. Decowski, V. Djordjadze, P. Donni, I. Doubovik, M.R. Dutta Majumdar, S. Eliseev, K. Enosawa, H. Feldmann, P. Foka, S. Fokin, V. Frolov, M.S. Ganti, S. Garpman, O. Gavrishchuk, F.J.M. Geurts, T.K. Ghosh, R. Glasow, S.K. Gupta, B. Guskov, H.A. Gustafsson, H.H. Gutbrod, R. Higuchi, I. Hrivnacova, M. Ippolitov, H. Kalechofsky, R. Kamermans, K.-H. Kampert, K. Karadjev, K. Karpio, S. Kato, S. Kees, H. Kim, B.W. Kolb, I. Kosarev, I. Koutcheryaev, A. Kugler, P. Kulinich, V. Kumar, M. Kurata, K. Kurita, N. Kuzmin, I. Langbein, A. Lebedev, Y.Y. Lee, H. Löhner, D.P. Mahapatra, V. Manko, M. Martin, A. Maximov, R. Mehdiyev, G. Mgebrichvili, Y. Miake, D. Mikhalev, G.C. Mishra, Y. Miyamoto, B. Mohanty, D. Morrison, D.S. Mukhopadhyay, V. Myalkovski, H. Naef, B.K. Nandi, S.K. Nayak, T.K. Nayak, S. Neumaier, A. Nianine, V. Nikitine, S. Nikolaev, S. Nishimura, P. Nomokov, J. Nystrand, F.E. Obenshain, A. Oskarsson, I. Otterlund, M. Pachr, A. Parfenov, S. Pavliouk, T. Peitzmann, V. Petracek, F. Plasil, M.L. Purschke, B. Raeven, J. Rak, S. Raniwala, V.S. Ramamurthy, N.K. Rao, F. Retiere, K. Reygers, G. Roland, L. Rosselet, I. Roufanov, J.M. Rubio, S.S. Sambyal, R. Santo, S. Sato, H. Schlagheck, H.-R. Schmidt, G. Shabratova, I. Sibiriak, T. Siemiarczuk, B.C. Sinha, N. Slavine, K. Söderström, N. Solomey, S.P. Sørensen, P. Stankus, G. Stefanek, P. Steinberg, E. Stenlund, D. Stüken, M. Sumbera, T. Svensson, M.D. Trivedi, A. Tsvetkov, C. Twenhöfel, L. Tykarski, J. Urbahn, N.v. Eijndhoven, W.H.v. Heeringen, G.J.v. Nieuwenhuizen, A. Vinogradov, Y.P. Viyogi, A. Vodopianov, S. Vörös, M.A. Vos, B. Wyslouch, K. Yagi, Y. Yokota, and G.R. Young
- Subjects
Physics ,Nuclear physics ,Nuclear and High Energy Physics ,Photon ,Phase space ,Charged particle ,Nuclear Physics - Abstract
The authors have studied the production of hadrons and photons in the reaction Pb(Pb, X) at 158 A.GeV. They have applied the discrete wavelet transform to the photon and charged-particle correlations in order to obtain a set of father function coefficients. They try to explain the multiplicity fluctuations by means of localized disoriented chiral condensate domains. (7 refs). A detailed analysis of the phase space distributions of charged particles and photons have been carried out using two independent methods. The results indicate the presence of nonstatistical fluctuations in localized regions of phase space.
- Published
- 2000
38. Collective flow and HBT in Pb+Pb collisions at the CERN-SPS
- Author
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Subhasis Chattopadhyay, Agneta Oskarsson, Klaus Johannes Reygers, Ashim Das, A. A. Vinogradov, H. Naef, A. Nianine, R. Mehdiyev, M. Kurata, B. Batiounia, H.H. Gutbrod, Susumu Sato, D. Mikhalev, S. K. Nayak, K. Kurita, Teodor Siemiarczuk, S. Pavliouk, V. S. Bhatia, B. Raeven, Petr Nomokonov, Rashmi Raniwala, G.S. Shabratova, A. A. Tsvetkov, V. Djordjadze, Shunji Nishimura, Zubayer Ahammed, R. Higuchi, Bolek Wyslouch, R. Santo, R. Cherbatchev, A. Buijs, P. Kulinich, Nikolai V Slavine, C. Blume, I. Otterlund, W. Pinanaud, M. R. Dutta Majumdar, L. Luquin, C. Barlag, V. S. Ramamurthy, D. P. Mahapatra, S. K. Badyal, V. Astakhov, Basanta Kumar Nandi, F. Retiere, I. Roufanov, O. P. Gavrishchuk, Y. Yokota, Krzysztof Karpio, Hyun-Chul Kim, V. Chalyshev, MV Manzano Martin, Frank Jm Geurts, Sanjeev Singh Sambyal, Bikash Sinha, H.Å. Gustafeson, I. Koutcheryaev, L. Rosselet, F. E. Obenshain, P.V.K.S. Baba, N. K. Rao, Jan Rak, A.S. Vodopianov, T. K. Nayak, M. D. Trivedi, H. Kalechofeky, S. Vörös, Md. F. Mir, Ivana Hrivnacova, N.A. Kuzmin, J. Urbahn, C. Roy, P. Steinberg, Martin Purschke, B. W. Kolb, A.L.S. Angelis, Kh Kampert, D. Bucher, Z.K. Böröcz, Hiroyuki Sako, E.-M. Bohne, Mikhail Ippolitov, Sudhir Raniwala, Yasuo Miake, S. Garpman, M. P. Decowski, S. Neumaier, J. M. Rubio, P. Donni, A. Kugler, S. P. Sorensen, E. Stenlund, A. Maximov, R. Kamermans, Gunther Roland, Peter M. Nilsson, T. Bernier, D. Stüken, M. Pachr, I. Langbein, G. R. Young, S. Dutt, Madan M. Aggarwal, V. Myalkovski, David Olle Rickard Silvermyr, L. Barabach, K. Karadjev, Sergey Nikolaev, T. H. Shah, A. Lebedev, E. C. v. d. Pijll, Sergey Fokin, S. Eliseev, A. Baldine, D. P. Morrison, P. Foka, Tatsuya Chujo, K. Yagi, A. Claussen, Hr Schmidt, Y.Y. Lee, V. Nikitine, T. Svensson, T. Krümpel, Y. P. Viyogi, K. El Chenawi, N. v. Eijndhoven, G. C. Mishra, S. Kees, V. Avdeitchikov, G. Stefanek, P. W. Stankus, V. Arefiev, Herbert Löhner, T. C. Awes, Gerrit Jan van Nieuwenhuizen, T. Peitzmann, Y. Miyamoto, Shiv K. Gupta, K. Söderström, Joakim Nystrand, A. Parfenov, I. Sibiriak, M. S. Ganti, K. B. Bhalla, S. Bathe, Michal Sumbera, H. Schlagheck, I. Kosarev, T. K. Ghosh, B.N. Gus'kov, A. Agnihotri, N. Solomey, S. Nishimura, Vladimir Frolov, V. Petráček, Lars Carlén, D. S. Mukhopadhyay, L. Tykarski, K. Enosawa, S. Kato, I. Doubovik, Vladislav Manko, V.G. Antonenko, R. Glasow, R. K. Bock, F. Plasil, H. Büsching, G. Mgebrichvili, 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
Physics ,Nuclear and High Energy Physics ,Large Hadron Collider ,Proton ,010308 nuclear & particles physics ,Plane (geometry) ,Astrophysics::High Energy Astrophysical Phenomena ,Heterojunction bipolar transistor ,01 natural sciences ,7. Clean energy ,Nuclear physics ,Interferometry ,Flow (mathematics) ,[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] ,0103 physical sciences ,Atomic physics ,Nuclear Experiment ,010306 general physics ,Astrophysics::Galaxy Astrophysics - Abstract
Study of elliptic emission for identified particles has been performed in 158A GeV Pb+Pb collisions near mid-rapidity region. Our preliminary results indicate the existence of the in-plane elliptic emission for {pi}{sup +} and proton, and out-of-plane elliptic emission for K+ in semi-central collisions. In addition, two-pion interferometry is studied as a function of the pair direction relative to the reaction plane.
- Published
- 1999
39. A Preshower Photon Multiplicity Detector for the WA98 Experiment
- Author
-
S.K. Nayak, H.H. Gutbrod, V. S. Ramamurthy, D. S. Mukhopadhyay, Sanjeev Singh Sambyal, Vikram Kumar, Zubayer Ahammed, Y. P. Viyogi, M. S. Ganti, V. S. Bhatia, S. K. Badyal, N. K. Rao, D. P. Mahapatra, Sudhir Raniwala, Shiv K. Gupta, S. Kachroo, M. R. Dutta Majumdar, S. Chattopadhyay, Ashim Das, A. Agnihotri, Basanta Kumar Nandi, T. K. Nayak, J. Urbahn, G. C. Mishra, M. D. Trivedi, B. W. Kolb, P.V.K.S. Baba, Bikash Sinha, I. Langbein, Martin Purschke, Madan M. Aggarwal, T.K. Ghosh, and K. B. Bhalla
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Photon ,Large Hadron Collider ,business.industry ,Physics::Instrumentation and Detectors ,Detector ,FOS: Physical sciences ,Scintillator ,Radiation length ,Photon counting ,Ion ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,Optics ,Multiplicity (chemistry) ,Detectors and Experimental Techniques ,business ,Nuclear Experiment ,Instrumentation - Abstract
A high granularity preshower detector has been fabricated and installed in the WA98 Experiment at the CERN SPS for measuring the spatial distribution of photons produced in the forward region in lead ion induced interactions. Photons are counted by detecting the preshower signal in plastic scintillator pads placed behind a 3 radiation length thick lead converter and applying a threshold on the scintillator signal to reject the minimum ionizing particles. Techniques to improve the imaging of the fibre and performance of the detector in the high multiplicity environment of lead-lead collisions are described. Using Monte-Carlo simulation methods and test beam data of pi- and e- at various energies the photon counting efficiency is estimated to be 68% for central and 73% for peripheral Pb+Pb collisions., 38 pages, 25 figures
- Published
- 1998
40. Present Status and Future of DCC Analysis
- Author
-
Tapan K. Nayak, M.M. Aggarwal, A. Agnihotri, Z. Ahammed, A.L.S. Angelis, V. Antonenko, V. Arefiev, V. Astakhov, V. Avdeitchikov, T.C. Awes, P.V.K.S. Baba, S.K. Badyal, A. Baldine, L. Barabach, C. Barlag, S. Bathe, B. Batiounia, T. Bernier, K.B. Bhalla, V.S. Bhatia, C. Blume, R. Bock, E.-M. Bohne, D. Bucher, A. Buijs, E.-J. Buis, H. Büsching, L. Carlen, V. Chalyshev, S. Chattopadhyay, K.E. Chenawi, R. Cherbatchev, T. Chujo, A. Claussen, A.C. Das, M.P. Decowski, V. Djordjadze, P. Donni, I. Doubovik, M.R. Dutta Majumdar, S. Eliseev, K. Enosawa, H. Feldmann, P. Foka, S. Fokin, V. Frolov, M.S. Ganti, S. Garpman, O. Gavrishchuk, F.J.M. Geurts, T.K. Ghosh, R. Glasow, S.K. Gupta, B. Guskov, H.A. Gustafsson, H.H. Gutbrod, R. Higuchi, I. Hrivnacova, M. Ippolitov, H. Kalechofsky, R. Kamermans, K.-H. Kampert, K. Karadjev, K. Karpio, S. Kato, S. Kees, H. Kim, B.W. Kolb, I. Kosarev, I. Koutcheryaev, A. Kugler, P. Kulinich, V. Kumar, M. Kurata, K. Kurita, N. Kuzmin, I. Langbein, A. Lebedev, Y.Y. Lee, H. Löhner, D.P. Mahapatra, V. Manko, M. Martin, A. Maximov, R. Mehdiyev, G. Mgebrichvili, Y. Miake, D. Mikhalev, G.C. Mishra, Y. Miyamoto, D. Morrison, D.S. Mukhopadhyay, V. Myalkovski, H. Naef, B.K. Nandi, S.K. Nayak, T.K. Nayak, S. Neumaier, A. Nianine, V. Nikitine, S. Nikolaev, S. Nishimura, P. Nomokov, J. Nystrand, F.E. Obenshain, A. Oskarsson, I. Otterlund, M. Pachr, A. Parfenov, S. Pavliouk, T. Peitzmann, V. Petracek, F. Plasil, M.L. Purschke, B. Raeven, J. Rak, S. Raniwala, V.S. Ramamurthy, N.K. Rao, F. Retiere, K. Reygers, G. Roland, L. Rosselet, I. Roufanov, J.M. Rubio, S.S. Sambyal, R. Santo, S. Sato, H. Schlagheck, H.-R. Schmidt, G. Shabratova, I. Sibiriak, T. Siemiarczuk, B.C. Sinha, N. Slavine, K. Söderström, N. Solomey, S.P. Sørensen, P. Stankus, G. Stefanek, P. Steinberg, E. Stenlund, D. Stüken, M. Sumbera, T. Svensson, M.D. Trivedi, A. Tsvetkov, C. Twenhöfel, L. Tykarski, J. Urbahn, N.v. Eijndhoven, W.H.v. Heeringen, G.J.v. Nieuwenhuizen, A. Vinogradov, Y.P. Viyogi, A. Vodopianov, S. Vörös, M.A. Vos, B. Wyslouch, K. Yagi, Y. Yokota, and G.R. Young
- Subjects
Quantum chromodynamics ,Physics ,Nuclear and High Energy Physics ,High energy ,Chiral symmetry ,Particle physics ,High Energy Physics::Lattice ,Nuclear Theory ,High Energy Physics::Phenomenology ,FOS: Physical sciences ,Current analysis ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,Pion ,Heavy ion ,Nuclear Experiment ,Analysis method ,Particle Physics - Experiment - Abstract
Disoriented Chiral Condensates (DCC) have been predicted to form in high energy heavy ion collisions where the approximate chiral symmetry of QCD has been restored. This leads to large imbalances in the production of charged to neutral pions. Sophisticated analysis methods are being developed to disentangle DCC events out of the large background of events with conventionally produced particles. We present a short review of current analysis methods and future prospects., 12 pages, 5 figures. Invited talk presented at the 13th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 97), Tsukuba, Japan, 1-5 Dec 1997
- Published
- 1998
41. Event by event measurement of〈pT〉of photons in S + Au collisions at 200 A·GeV
- Author
-
M.M. Aggarwal, A.L.S. Angelis, V. Antonenko, T.C. Awes, S.K. Badyal, C. Barlag, K.B. Bhalla, V.S. Bhatia, C. Blume, D. Bock, E.-M. Bohne, D. Bucher, A. Buijs, S. Chattopadhyay, A. Claussen, G. Clewing, A.C. Das, null Devanand, P. Dönni, E. Durieux, M.R. Dutta Majumdar, S. Fokin, M.S. Ganti, S. Garpman, F. Geurts, T.K. Ghosh, R. Glasow, S.K. Gupta, H.-Å. Gustafsson, H.H. Gutbrod, M. Hartig, He Xiaochun, G. Hölker, M. Ippolitov, M. Izycki, S. Kachroo, R. Kamermans, K.-H. Kampert, K. Karadjev, B.W. Kolb, I. Langbein, J. Langheinrich, A. Lebedev, H. Löhner, V. Manko, M. Martin, I.S. Mittra, H. Naef, S.K. Nayak, T.K. Nayak, S. Nikolaev, J. Nystrand, F.E. Obenshain, A. Oskarsson, I. Otterlund, T. Peitzmann, F. Plasil, M. Purschke, S. Raniwala, N.K. Rao, L. Rosselet, B. Roters, J.M. Rubio, S. Saini, S. Sambyal, R. Santo, H.R. Schmidt, T. Siemiarczuk, R. Siemssen, B.C. Sinha, S. Slegt, K. Söderström, N. Solomey, S.P. Sorensen, G. Stefanek, P. Steinhaeuser, E. Stenlund, A. Ster, D. Stüken, M.D. Trivedi, C. Twenhoefel, N. Van Eijndhoven, W.H. Van Heeringen, A. Vinogradov, Y.P. Viyogi, S. Weber, G.R. Young, Angelis, Aris, Donni, Paul, Durieux, Eric Marie Geoffroy, Martin, Michel, Naef, Hanspeter, Rosselet, Laurent, Rubio, Juan Miguel, and Solomey, Nickolas
- Subjects
Physics ,Nuclear and High Energy Physics ,Particle physics ,Photon ,Large Hadron Collider ,biology ,Venus ,ddc:500.2 ,biology.organism_classification ,Spectral line ,Nuclear physics ,Transverse plane ,Transverse momentum ,Multiplicity (chemistry) ,Nuclear Experiment ,Event generator - Abstract
The mean transverse momentum of photons has been determined on an event by event basis in S + Au collisions at 200 A.GeV from the ratio of the measured electromagnetic transverse energy (E-T(em)) to the photon multiplicity (N-gamma). The average value obtained is similar to that determined for the same system using spectroscopic techniques. The centrality dependence of the measured values are in agreement with the predictions of the VENUS event generator. (C) 1997 Published by Elsevier Science B.V.
- Published
- 1997
42. Photon and neutral meson production in 158 AGeV 208Pb+Pb collisions
- Author
-
Thomas Peitzmann, M. Aggarwal, A. Agnihotri, A.L.S. Angelis, V. Antonenko, V. Arefiev, V. Astakhov, V. Avdeitchikov, T.C. Awes, S.K. Badyal, A. Baldine, L. Barabach, C. Barlag, S. Bathe, B. Batiounia, T. Bernier, K.B. Bhalla, V.S. Bhatia, C. Blume, D. Bock, R. Bock, E.-M. Bohne, D. Bucher, A. Buijs, E.-J. Buis, H. Büsching, L. Carlen, V. Chalyshev, S. Chattopadhyay, K.E. Chenawi, R. Cherbatchev, T. Chujo, A. Claussen, A.C. Das, M.P. Decowski, null Devanand, V. Djordjadze, P. Donni, I. Doubovik, S. Eliseev, K. Enosawa, H. Feldmann, P. Foka, S. Fokin, V. Frolov, M.S. Ganti, S. Garpman, O. Gavrishchuk, F.J.M. Geurts, T.K. Ghosh, R. Glasow, B. Guskov, H.A. Gustafsson, H.H. Gutbrod, R. Higuchi, I. Hrivnacova, M. Ippolitov, H. Kalechofsky, R. Kamermans, K.-H. Kampert, K. Karadjev, K. Karpio, S. Kato, S. Kees, H. Kim, B.W. Kolb, I. Kosarev, I. Koutcheryaev, A. Kugler, P. Kulinich, V. Kumar, M. Kurata, K. Kurita, N. Kuzmin, I. Langbein, A. Lebedev, Y.Y. Lee, H. Löhner, D.P. Mahapatra, J. Maharana, M.D.D. Majumdar, V. Manko, M. Martin, A. Maximov, R. Mehdiyev, G. Mgebrichvili, Y. Miake, D. Mikhalev, G.C. Mishra, I.S. Mittra, Y. Miyamoto, S. Mookerjee, D. Morrison, D.S. Mukhopadhyay, V. Myalkovski, H. Naef, G.K. Nandi, S.K. Nayak, T.K. Nayak, S. Neumaier, A. Nianine, V. Nikitine, S. Nikolaev, S. Nishimura, P. Nomokov, J. Nystrand, F.E. Obenshain, A. Oskarsson, I. Otterlund, M. Pachr, A. Parfenov, S. Pavliouk, T. Peitzmann, V. Petracek, S.C. Phatak, F. Plasil, M.L. Purschke, J. Rak, S. Raniwala, V.S. Ramamurthy, N.K. Rao, B. Raven, F. Retiere, K. Reygers, G. Roland, L. Rosselet, I. Roufanov, J. Rubio, S.S. Sambyal, R. Santo, S. Sato, P. Saxena, H. Schlagheck, H.-R. Schmidt, G. Shabratova, I. Sibariak, T. Siemiarczuk, K. Singh, B.C. Sinha, N. Slavine, K. Söderström, N. Solomey, S.P. Sørensen, P. Stankus, G. Stefanek, P. Steinberg, E. Stenlund, D. Stüken, M. Sumbera, T. Svensson, M.D. Trivedi, A. Tsvetkov, C. Twenhöfel, L. Tykarski, J. Urbahn, N.v. Eijndhoven, W.H.v. Heeringen, G.J.v. Nieuwenhuizen, A. Vinogradov, Y.P. Viyogi, A. Vodopianov, M.A. Vos, B. Wyslouch, K. Yagi, Y. Yokota, G.R. Young, Angelis, Aris, Doenni, Paul, Foka, Panagiota, Kalechofsky, Hal, Martin, Michel, Naef, Hanspeter, Rosselet, Laurent, Rubio, Juan Miguel, and Solomey, Nickolas
- Subjects
Physics ,Nuclear physics ,Nuclear and High Energy Physics ,Particle physics ,Transverse plane ,Large Hadron Collider ,Photon ,Meson production ,Nuclear Theory ,High Energy Physics::Experiment ,ddc:500.2 ,Multiplicity (chemistry) ,Nuclear Experiment - Abstract
First results from the WA98 experiment on 33 TeV 208 Pb ion reactions with various targets measured at the CERN SPS are presented. Data on transverse energy production and particle multiplicity are discussed. Special emphasis is laid on photon and neutral meson production.
- Published
- 1996
43. Status of the Pestov spark counter development for the ALICE experiment
- Author
-
Yu.N. Pestov, E. Badura, Hr Schmidt, H. Gaiser, P Steinhaeuser, J. Eschke, Ch Neyer, M.A. Tiunov, V Lobanov, V. Dodokhov, V Grigoriev, H.H. Gutbrod, R. Schulze, A.R. Frolov, U. Kopf, S Vodopianov, V Kaplin, and H. Stelzer
- Subjects
Nuclear physics ,Physics ,Nuclear and High Energy Physics ,Test beam ,Time resolution ,Detectors and Experimental Techniques ,Instrumentation - Abstract
The performance of a new ALICE prototype of the Pestov spark counter was measured both in a dedicated test beam as well as in a high multiplicity heavy-ion environment. Results in terms of time resolution and background behaviour are presented.
- Published
- 1996
44. Pestov spark counter prototype development for the CERN-LHC ALICE experiment
- Author
-
P Steinhaeuser, C. Neyer, E. Badura, U. Kopf, V. Dodokhov, R. Schulze, H. Gaiser, B. Roters, H.H. Gutbrod, H. Stelzer, Hr Schmidt, A.R. Frolov, Yu.N. Pestov, J. Eschke, and M.A. Tiunov
- Subjects
Physics ,Nuclear physics ,Nuclear and High Energy Physics ,Large Hadron Collider ,Position resolution ,Spark (mathematics) ,ALICE (propellant) ,Detectors and Experimental Techniques ,Instrumentation - Abstract
A prototype Pestov Spark Counter with two-dimensional position resolution has been developed. The position resolution is 0.32 mm and
- Published
- 1995
45. A new VME-based high voltage power supply for large photomultiplier systems
- Author
-
Vladislav Manko, G. Schepers, A. A. Tsvetkov, A. Claussen, T. Peitzmann, E.-M. Bohne, T Hubbeling, G. Mgebrishvili, Martin Purschke, B. W. Kolb, A. A. Vinogradov, H.H. Gutbrod, C. Barlag, A Nijanin, H. Schlagheck, C. Blume, Mikhail Ippolitov, Yu. G. Sibiryak, S. Neumaier, and D. Bucher
- Subjects
Physics ,Nuclear and High Energy Physics ,Photomultiplier ,business.industry ,Detector ,Electrical engineering ,High voltage ,Noise (electronics) ,Calorimeter ,Control theory ,Detectors and Experimental Techniques ,business ,Instrumentation ,Electronic circuit ,Voltage - Abstract
We describe a new high voltage power supply, developed for the leadglass calorimeter of the WA98 experiment at CERN. The high voltage is produced for each of the 10 080 photomultiplier tubes of the detector individually, by the same number of active bases with on-board Greinacher voltage multipliers. The full VME-based HV controller system, which addresses each base via bus cables once per second, is miniaturized and fits into a single VME crate. The main advantages of this approach are the low heat dissipation, the considerably reduced amount of cabling and cost, as well as the high stability and low noise of the system.
- Published
- 1995
46. Effective source sizes of low rapidity soft particle emission
- Author
-
F. Plasil, Agneta Oskarsson, [No Value] Otterlund, Am Poskanzer, G. Clewing, S. Garpman, P. Steinhaeuser, H. A. Gustafsson, Ma Bloomer, T. Peitzmann, C. Blume, B. Roters, Peter Martin Jacobs, S. Saini, G. R. Young, D. Stüken, R. Albrecht, S. P. Sorensen, L. Dragon, R. L. Ferguson, Martin Purschke, A. Franz, Kh Kampert, D. Bock, H.H. Gutbrod, E. Stenlund, J. Idh, G. Claesson, Hr Schmidt, P. Beckmann, A. Eklund, Herbert Löhner, Frank Berger, [No Value] Lund, T. C. Awes, R. Glasow, B. W. Kolb, F. E. Obenshain, G Holker, K. Steffens, R. K. Bock, and R. Santo
- Subjects
Nuclear physics ,Physics ,Nuclear and High Energy Physics ,Pion ,Particle emission ,Proton ,Nuclear Theory ,Detector ,High Energy Physics::Experiment ,Rapidity ,Nuclear Experiment ,Particle Physics - Experiment - Abstract
Correlations of positive pions and protons measured with the Plastic Ball detector in ultrarelativistic nucleus-nucleus collisions are studied. Source parameters are extracted for various projectile-target combinations. While the proton source can be explained by geometry, the pion source shows more subtle effects, which may be related to a very large source component. A comparison with the RQMD model for 200 A GeV 32 S + Au reactions reveals discrepancies for the pion source.
- Published
- 1994
47. Recent results from the WA80 experiment at CERN
- Author
-
M Ippolitov, Karl-Heinz Kampert, Alexander Vinogradov, Vladislav Manko, F. Plasil, T. Peitzmann, Anders Nils Erik Oskarsson, A. Franz, G. Claesson, Herbert Löhner, P. Beckmann, R. Santo, B. Roters, D. Stüken, I. Otterlund, T. C. Awes, R. Schmidt, R. Glasow, A.L. Lebedev, S. Saini, G Holker, A. M. Poskanzer, F. Berger, K. Steffens, R. Bock, M. Hartig, G. Clewing, R. R. Debbe, B. W. Kolb, Hr Schmidt, S. P. Sørensen, O. Hansen, H. Wegener, G. R. Young, I. Lund, H. G. Ritter, D. Bock, R. L. Ferguson, P. Steinhaeuser, K. Karadjev, Sergey Fokin, H.H. Gutbrod, A. Eklund, Felix E. Obenshain, S. Garpman, H. A. Gustafsson, Peter Martin Jacobs, B. Moskowitz, R. Albrecht, J. Idh, Evert Anders Stenlund, Ma Bloomer, M. Purschke, and L. Dragon
- Subjects
Nuclear physics ,Physics ,Nuclear and High Energy Physics ,Particle physics ,Large Hadron Collider ,Nuclear Theory ,Quark–gluon plasma ,Thermal ,Observable ,Nuclear Experiment ,Spectral line ,Particle Physics - Experiment - Abstract
Results from the WA80 experiment on systematics of global observables, dE T / dη and dN ch / dη , as well as on spectra of identified particles are presented. Special attention is given to the target fragmentation region where two-pion correlations and proton distributions have been measured. Incorporation of strong rescattering phenomena into string models is found to provide a good description of most experimental data. Deviations to this are pointed out. The present status of the γ thermal / π 0 ratio as a signal of the quark gluon plasma is discussed.
- Published
- 1992
48. Intermittency in $^{32}$S + S and $^{32}$S + Au collisions at the CERN SPS
- Author
-
D. Bock, Agneta Oskarsson, L. Dragon, K. Söderström, B. Roters, R. L. Ferguson, P. Steinhauser, A. Franz, S. Saini, R. Bock, F. Plasil, R. Albrecht, F. Berger, R. Glasow, P. Jacobs, Ma Bloomer, A. Eklund, A. M. Poskanzer, K. Karadjev, T. C. Awes, R. Santo, B. W. Kolb, A.L. Lebedev, M. Purschke, Hr Schmidt, S. P. Sorensen, P. Beckmann, A. A. Vinogradov, G Holker, Mikhail Ippolitov, I. Otterlund, Vladislav Manko, H. A. Gustafsson, J. Idh, S. Garpman, A. Twyhues, G. Claesson, Kh Kampert, D. Stüken, M. Hartig, B. Moskowitz, K. Steffens, E. Stenlund, H. G. Ritter, R. Debbe, G. Clewing, Herbert Löhner, H.H. Gutbrod, Felix E. Obenshain, O. Hansen, G. R. Young, T. Peitzmann, I. Lund, and S. Fokin
- Subjects
Nuclear reaction ,Physics ,Nuclear and High Energy Physics ,Particle physics ,Large Hadron Collider ,Physics::Instrumentation and Detectors ,Nuclear Theory ,Hadron ,Multiplicity (mathematics) ,Elementary particle ,Charged particle ,law.invention ,Nuclear physics ,law ,Phase space ,Intermittency ,High Energy Physics::Experiment ,Nuclear Experiment ,Particle Physics - Experiment - Abstract
Nonstatistical or “intermittent” fluctuations of charged particle multiplicities have been investigated at the CERN SPS with the WA80 multiplicity array for 32S+S and 32S+Au collisions of varying centrality. Within the phase space domain studied there is no evidence for intermittency in these collisions beyond that accounted for by FRITIOF filtered through a full detector simulation.
- Published
- 1992
49. Erratum: Centrality Dependence of Neutral Pion Production in158AGeVP208b+P208bCollisions [Phys. Rev. Lett. 81, 4087 (1998)]
- Author
-
Jan Rak, S. Pavliouk, M. Kurata, Gunther Roland, Zubayer Ahammed, P. Steinberg, K. Söderström, S. K. Badyal, L. Barabach, D. P. Morrison, Tatsuya Chujo, Shunji Nishimura, E.-M. Bohne, M. D. Trivedi, Bikash Sinha, W. Pinanaud, I. Otterlund, P. Kulinich, Nikolai V Slavine, A.L.S. Angelis, B. W. Kolb, R. Cherbatchev, K. Enosawa, S. Kato, I. Roufanov, P. Foka, G. R. Young, A.S. Vodopianov, P. Donni, Joakim Nystrand, P. W. Stankus, V. Djordjadze, Herbert Löhner, Hr Schmidt, Y.Y. Lee, I. Koutcheryaev, V. Nikitine, T. Svensson, K. Karadjev, R. Higuchi, V. S. Ramamurthy, Sergey Fokin, R. Glasow, D. P. Mahapatra, Petr Nomokonov, P.V.K.S. Baba, C. Roy, A. Lebedev, Hyun-Chul Kim, L. Rosselet, V. Myalkovski, Rashmi Raniwala, S. Vörös, H. Kalechofsky, K. B. Bhalla, G. C. Mishra, Z.K. Böröcz, Teodor Siemiarczuk, H. Naef, O. P. Gavrishchuk, A. Nianine, Ashim Das, R. K. Bock, G. Stefanek, Frank Jm Geurts, MV Manzano Martin, A. Baldine, V. S. Bhatia, D. Mukhopadhyay, T. Krümpel, N. K. Rao, N. v. Eijndhoven, A. A. Vinogradov, C. Twenhöfel, I. Sibiriak, S. Bathe, D. Mikhalev, F. Plasil, S. P. Sorensen, S. Neumaier, H. Büsching, A. Parfenov, A. Maximov, S. Garpman, S. K. Nayak, D. Stüken, Peter M. Nilsson, G.S. Shabratova, R. Mehdiyev, B. Batiounia, I. Langbein, Michal Sumbera, H. A. Gustafsson, A. Claussen, G. Mgebrichvili, E. Stenlund, A. Kugler, B.N. Gus'kov, A. Agnihotri, Sergey Nikolaev, S. Eliseev, Christoph Blume, Susumu Sato, Basanta Kumar Nandi, N. Solomey, D. Bucher, K. Yagi, Agneta Oskarsson, Yasuo Miake, R. Kamermans, Ivana Hrivnacova, B. Raeven, Sudhir Raniwala, S. Kees, V. Avdeitchikov, J. Urbahn, J. M. Rubio, Klaus Johannes Reygers, T. Bernier, Mikhail Ippolitov, L. Tykarski, A. A. Tsvetkov, Sukalyan Chattopadhyay, M. P. Decowski, M. S. Ganti, Hiroyuki Sako, Bolek Wyslouch, A. Buijs, R. Santo, L. Luquin, Y. Miyamoto, I. Doubovik, Y. Yokota, T. K. Nayak, Martin Purschke, Sanjeev Singh Sambyal, Vladislav Manko, H.H. Gutbrod, Shiv K. Gupta, K. Kurita, M. R. Dutta Majumdar, David Olle Rickard Silvermyr, V. Astakhov, T. Peitzmann, C. Barlag, V. Chalyshev, Felix E. Obenshain, M. Pachr, F. Retiere, Madan M. Aggarwal, K. El Chenawi, Kh Kampert, N.A. Kuzmin, H. Schlagheck, I. Kosarev, T. K. Ghosh, V. Arefiev, T. C. Awes, Gerrit Jan van Nieuwenhuizen, Vladimir Frolov, Y. P. Viyogi, V. Petráček, Lars Carlén, V.G. Antonenko, and Krzysztof Karpio
- Subjects
Physics ,Nuclear physics ,Particle physics ,Pion ,General Physics and Astronomy ,Centrality - Published
- 2000
50. Upper limit for thermal direct photon production in heavy-ion collisions at 60 and 200 A-GeV
- Author
-
L. Dragon, D. Stüken, H.H. Gutbrod, F. Berger, G. Clewing, R. Albrecht, Hr Schmidt, I. Otterlund, A. Eklund, Felix E. Obenshain, R. K. Bock, H. G. Ritter, Agneta Oskarsson, R. Glasow, S. Saini, J. Idh, A. M. Poskanzer, B. W. Kolb, G Holker, S. Garpman, S. P. Sørensen, M. Purschke, M. L. Tincknell, Herbert Löhner, H. A. Gustafsson, D. Bock, K. Steffens, A. Franz, T. Peitzmann, I. Lund, Peter Martin Jacobs, G. Claesson, F. Plasil, E. Stenlund, Kh Kampert, R. L. Ferguson, T. C. Awes, G. R. Young, Per Kristiansson, P. Beckmann, and R. Santo
- Subjects
Physics ,Photon ,Physics and Astronomy (miscellaneous) ,Meson ,Nuclear Theory ,Hadron ,Monte Carlo method ,Spectral line ,Nuclear physics ,Pion ,Pseudorapidity ,Quark–gluon plasma ,High Energy Physics::Experiment ,Atomic physics ,Nuclear Experiment ,Engineering (miscellaneous) ,Particle Physics - Experiment - Abstract
The production of direct photons has been investigated in reactions ofp and16O projectiles at 60 and 200A·GeV with C and Au nuclei. Photon and π0 spectra have been measured in the pseudorapidity range 1.5≦η≦2.1 for the transverse momentum region 0.4 GeV/c≦p T ≦2.8 GeV/c employing the lead-glass spectrometer SAPHIR. An upper limit of 15% at the 90% confidence level for the direct photon signal relative to the neutral pion production is obtained from the comparison of measured photon spectra with Monte Carlo simulations of the hadronic background based on the reconstructed yield of π0 and η mesons. Consequences for a possible phase transition to a quark-gluon plasma are discussed.
- Published
- 1990
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