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Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 AGeV
The centrality and system size dependence of multiplicity fluctuations of charged particles produced in nuclear collisions at 158 AGeV was studied by the NA49 collaboration. Centrality selected Pb+Pb collisions, semi-central C+C and Si+Si collisions as well as inelastic p+p interactions were analyze...
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Lenguaje: | eng |
Publicado: |
2006
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevC.75.064904 http://cds.cern.ch/record/1004334 |
_version_ | 1780911686157336576 |
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author | Alt, C. Anticic, T. Baatar, B. Barna, D. Bartke, J. Betev, L. Bialkowska, H. Blume, C. Boimska, B. Botje, M. Bracinik, J. Bramm, R. Buncic, P. Cerny, V. Christakoglou, P. Chung, P. Chvala, O. Cramer, J.G. Csato, P. Dinkelaker, P. Eckardt, V. Flierl, D. Fodor, Z. Foka, P. Friese, V. Gal, J. Gazdzicki, M. Genchev, V. Georgopoulos, G. Gladysz, E. Grebieszkow, K. Hegyi, S. Hohne, C. Kadija, K. Karev, A. Kikola, D. Kliemant, M. Kniege, S. Kolesnikov, V.I. Kornas, E. Korus, R. Kowalski, M. Kraus, I. Kreps, M. Laszlo, A. Lacey, R. van Leeuwen, M. Levai, P. Litov, L. Lungwitz, B. Makariev, M. Malakhov, A.I. Mateev, M. Melkumov, G.L. Mischke, A. Mitrovski, M. Molnar, J. Mrowczynski, St. Nicolic, V. Palla, G. Panagiotou, A.D. Panayotov, D. Peryt, W. Petridis, A. Pikna, M. Pluta, J. Prindle, D. Puhlhofer, F. Renfordt, R. Roland, C. Roland, G. Rybczynski, M. Rybicki, A. Sandoval, A. Schmitz, N. Schuster, T. Seyboth, P. Sikler, F. Sitar, B. Skrzypczak, E. Slodkowski, M. Stefanek, G. Stock, R. Strabel, C. Strobele, H. Susa, T. Szentpetery, I. Sziklai, J. Szuba, M. Szymanski, P. Trubnikov, V. Varga, D. Vassiliou, M. Veres, G.I. Vesztergombi, G. Vranic, D. Wetzler, A. Wlodarczyk, Z. Wojtaszek, A. Yoo, I.K. Zimnyi, J. |
author_facet | Alt, C. Anticic, T. Baatar, B. Barna, D. Bartke, J. Betev, L. Bialkowska, H. Blume, C. Boimska, B. Botje, M. Bracinik, J. Bramm, R. Buncic, P. Cerny, V. Christakoglou, P. Chung, P. Chvala, O. Cramer, J.G. Csato, P. Dinkelaker, P. Eckardt, V. Flierl, D. Fodor, Z. Foka, P. Friese, V. Gal, J. Gazdzicki, M. Genchev, V. Georgopoulos, G. Gladysz, E. Grebieszkow, K. Hegyi, S. Hohne, C. Kadija, K. Karev, A. Kikola, D. Kliemant, M. Kniege, S. Kolesnikov, V.I. Kornas, E. Korus, R. Kowalski, M. Kraus, I. Kreps, M. Laszlo, A. Lacey, R. van Leeuwen, M. Levai, P. Litov, L. Lungwitz, B. Makariev, M. Malakhov, A.I. Mateev, M. Melkumov, G.L. Mischke, A. Mitrovski, M. Molnar, J. Mrowczynski, St. Nicolic, V. Palla, G. Panagiotou, A.D. Panayotov, D. Peryt, W. Petridis, A. Pikna, M. Pluta, J. Prindle, D. Puhlhofer, F. Renfordt, R. Roland, C. Roland, G. Rybczynski, M. Rybicki, A. Sandoval, A. Schmitz, N. Schuster, T. Seyboth, P. Sikler, F. Sitar, B. Skrzypczak, E. Slodkowski, M. Stefanek, G. Stock, R. Strabel, C. Strobele, H. Susa, T. Szentpetery, I. Sziklai, J. Szuba, M. Szymanski, P. Trubnikov, V. Varga, D. Vassiliou, M. Veres, G.I. Vesztergombi, G. Vranic, D. Wetzler, A. Wlodarczyk, Z. Wojtaszek, A. Yoo, I.K. Zimnyi, J. |
author_sort | Alt, C. |
collection | CERN |
description | The centrality and system size dependence of multiplicity fluctuations of charged particles produced in nuclear collisions at 158 AGeV was studied by the NA49 collaboration. Centrality selected Pb+Pb collisions, semi-central C+C and Si+Si collisions as well as inelastic p+p interactions were analyzed. The number of projectile participants determined on event-by-event basis was used to characterize the collision centrality. The scaled variance of the multiplicity distribution obtained in the forward rapidity region (1.1 <y_{cm} <2.6) shows a non-monotonic dependence on centrality with a maximum for semi-peripheral Pb+Pb interactions of about 30 projectile participants. The results are similar for negatively and positively charged particles and about 50% larger for all charged particles. String-hadronic models of nuclear reactions without the fusion process do not reproduce the rise of fluctuations from central towards peripheral collisions. The measured centrality dependence can be reproduced in superposition models with the assumption of contributions from target participants to particle production in the forward hemisphere or in string models with fusion. |
id | cern-1004334 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2006 |
record_format | invenio |
spelling | cern-10043342023-03-14T17:17:02Zdoi:10.1103/PhysRevC.75.064904http://cds.cern.ch/record/1004334engAlt, C.Anticic, T.Baatar, B.Barna, D.Bartke, J.Betev, L.Bialkowska, H.Blume, C.Boimska, B.Botje, M.Bracinik, J.Bramm, R.Buncic, P.Cerny, V.Christakoglou, P.Chung, P.Chvala, O.Cramer, J.G.Csato, P.Dinkelaker, P.Eckardt, V.Flierl, D.Fodor, Z.Foka, P.Friese, V.Gal, J.Gazdzicki, M.Genchev, V.Georgopoulos, G.Gladysz, E.Grebieszkow, K.Hegyi, S.Hohne, C.Kadija, K.Karev, A.Kikola, D.Kliemant, M.Kniege, S.Kolesnikov, V.I.Kornas, E.Korus, R.Kowalski, M.Kraus, I.Kreps, M.Laszlo, A.Lacey, R.van Leeuwen, M.Levai, P.Litov, L.Lungwitz, B.Makariev, M.Malakhov, A.I.Mateev, M.Melkumov, G.L.Mischke, A.Mitrovski, M.Molnar, J.Mrowczynski, St.Nicolic, V.Palla, G.Panagiotou, A.D.Panayotov, D.Peryt, W.Petridis, A.Pikna, M.Pluta, J.Prindle, D.Puhlhofer, F.Renfordt, R.Roland, C.Roland, G.Rybczynski, M.Rybicki, A.Sandoval, A.Schmitz, N.Schuster, T.Seyboth, P.Sikler, F.Sitar, B.Skrzypczak, E.Slodkowski, M.Stefanek, G.Stock, R.Strabel, C.Strobele, H.Susa, T.Szentpetery, I.Sziklai, J.Szuba, M.Szymanski, P.Trubnikov, V.Varga, D.Vassiliou, M.Veres, G.I.Vesztergombi, G.Vranic, D.Wetzler, A.Wlodarczyk, Z.Wojtaszek, A.Yoo, I.K.Zimnyi, J.Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 AGeVNuclear Physics - ExperimentThe centrality and system size dependence of multiplicity fluctuations of charged particles produced in nuclear collisions at 158 AGeV was studied by the NA49 collaboration. Centrality selected Pb+Pb collisions, semi-central C+C and Si+Si collisions as well as inelastic p+p interactions were analyzed. The number of projectile participants determined on event-by-event basis was used to characterize the collision centrality. The scaled variance of the multiplicity distribution obtained in the forward rapidity region (1.1 <y_{cm} <2.6) shows a non-monotonic dependence on centrality with a maximum for semi-peripheral Pb+Pb interactions of about 30 projectile participants. The results are similar for negatively and positively charged particles and about 50% larger for all charged particles. String-hadronic models of nuclear reactions without the fusion process do not reproduce the rise of fluctuations from central towards peripheral collisions. The measured centrality dependence can be reproduced in superposition models with the assumption of contributions from target participants to particle production in the forward hemisphere or in string models with fusion.The centrality and system size dependence of multiplicity fluctuations of charged particles produced in nuclear collisions at $158 A$ GeV was studied by the NA49 collaboration. Centrality selected Pb+Pb collisions, semi-central C+C and Si+Si collisions as well as inelastic p+p interactions were analyzed. The number of projectile participants determined on an event-by-event basis was used to characterize the collision centrality. The scaled variance of the multiplicity distribution obtained in the forward rapidity region ($1.1 <y_{c.m.} <2.6$) shows a significant increase towards peripheral collisions. The results are similar for negatively and positively charged particles and about 50% larger for all charged particles. String-hadronic models of nuclear reactions without the fusion process do not reproduce the rise of fluctuations from central towards peripheral collisions. The measured centrality dependence can be reproduced in superposition models with the assumption of contributions from target participants to particle production in the forward hemisphere or in string models with fusion.nucl-ex/0612010oai:cds.cern.ch:10043342006-12-08 |
spellingShingle | Nuclear Physics - Experiment Alt, C. Anticic, T. Baatar, B. Barna, D. Bartke, J. Betev, L. Bialkowska, H. Blume, C. Boimska, B. Botje, M. Bracinik, J. Bramm, R. Buncic, P. Cerny, V. Christakoglou, P. Chung, P. Chvala, O. Cramer, J.G. Csato, P. Dinkelaker, P. Eckardt, V. Flierl, D. Fodor, Z. Foka, P. Friese, V. Gal, J. Gazdzicki, M. Genchev, V. Georgopoulos, G. Gladysz, E. Grebieszkow, K. Hegyi, S. Hohne, C. Kadija, K. Karev, A. Kikola, D. Kliemant, M. Kniege, S. Kolesnikov, V.I. Kornas, E. Korus, R. Kowalski, M. Kraus, I. Kreps, M. Laszlo, A. Lacey, R. van Leeuwen, M. Levai, P. Litov, L. Lungwitz, B. Makariev, M. Malakhov, A.I. Mateev, M. Melkumov, G.L. Mischke, A. Mitrovski, M. Molnar, J. Mrowczynski, St. Nicolic, V. Palla, G. Panagiotou, A.D. Panayotov, D. Peryt, W. Petridis, A. Pikna, M. Pluta, J. Prindle, D. Puhlhofer, F. Renfordt, R. Roland, C. Roland, G. Rybczynski, M. Rybicki, A. Sandoval, A. Schmitz, N. Schuster, T. Seyboth, P. Sikler, F. Sitar, B. Skrzypczak, E. Slodkowski, M. Stefanek, G. Stock, R. Strabel, C. Strobele, H. Susa, T. Szentpetery, I. Sziklai, J. Szuba, M. Szymanski, P. Trubnikov, V. Varga, D. Vassiliou, M. Veres, G.I. Vesztergombi, G. Vranic, D. Wetzler, A. Wlodarczyk, Z. Wojtaszek, A. Yoo, I.K. Zimnyi, J. Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 AGeV |
title | Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 AGeV |
title_full | Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 AGeV |
title_fullStr | Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 AGeV |
title_full_unstemmed | Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 AGeV |
title_short | Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 AGeV |
title_sort | centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 agev |
topic | Nuclear Physics - Experiment |
url | https://dx.doi.org/10.1103/PhysRevC.75.064904 http://cds.cern.ch/record/1004334 |
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