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Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>158</mml:mn><mml:mi>A</mml:mi></mml:mrow></mml:math>GeV

C. Alt,Tome Antičić,B. Baatar,D. Barna,J. Bartke,Latchezar Betev,Helena Bialkowska,Christoph Blume,Bożena Boimska,M. Botje,J. Braciník,R. Bramm,Predrag Buncic,V. Černý,P. Christakoglou,P. Chung,O. Chvála,J. G. Cramer,P. Csató,P. Dinkelaker,V. Eckardt,D. Flierl,Z. Fodor,Panagiota Foka,V. Friese,J. G ́l,M. Gaździcki,V. Genchev,G. Georgopoulos,E. Gładysz,K. Grebieszkow,S. Hegyi,C. Höhne,K. Kadija,A. Karev,D. P. Kikoła,M. Kliemant,S. Kniege,В. И. Колесников,E. Kornaś,R. Korus,M. Kowalski,I. Kraus,M. Kreps,Á. László,R. Lacey,M. van Leeuwen,Peter Lévai,L. Litov,B. Lungwitz,M. Makariev,Alexander Malakhov,M. Mateev,G. L. Melkumov,A. Mischke,M. Mitrovski,József Molnár,S. Mrówczyński,V. Nicolic,G. Pálla,Apostolos Panagiotou,D. Panayotov,W. Peryt,A. Petridis,Miroslav Pikna,J. Pluta,D. Prindle,F. Pühlhofer,R. Renfordt,Christof Roland,Gunther Roland,M. Rybczyński,Andrzej Rybicki,A. Sandoval,N. Schmitz,T. Schuster,P. Seyboth,Ferenc Siklér,Branislav Sitár,E. Skrzypczak,M. Słodkowski,G. Stefanek,R. Stock,C. Strabel,H. Ströbele,Tatjana Šuša,I. Szentpétery,J. Sziklai,M. Szuba,P. Szymański,V. Trubnikov,Dezső Varga,M. Vassiliou,Gabor Istvan Veres,G. Vesztergombi,D. Vranić,A. Wetzler,Z. Włodarczyk,A. Wojtaszek,I. K. Yoo,J. Zim�nyi

Multiplicity (mathematics)

Centrality

Physics

2007

The centrality and system size dependence of multiplicity fluctuations of charged particles produced in nuclear collisions at $158A$ GeV was studied by the NA49 Collaboration. Centrality selected Pb+Pb collisions, semicentral 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 ($1.1<{y}_{\mathrm{c.m.}}<2.6$) shows a significant increase toward 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 toward 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.

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“Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>158</mml:mn><mml:mi>A</mml:mi></mml:mrow></mml:math>GeV” is a paper by C. Alt Tome Antičić B. Baatar D. Barna J. Bartke Latchezar Betev Helena Bialkowska Christoph Blume Bożena Boimska M. Botje J. Braciník R. Bramm Predrag Buncic V. Černý P. Christakoglou P. Chung O. Chvála J. G. Cramer P. Csató P. Dinkelaker V. Eckardt D. Flierl Z. Fodor Panagiota Foka V. Friese J. G ́l M. Gaździcki V. Genchev G. Georgopoulos E. Gładysz K. Grebieszkow S. Hegyi C. Höhne K. Kadija A. Karev D. P. Kikoła M. Kliemant S. Kniege В. И. Колесников E. Kornaś R. Korus M. Kowalski I. Kraus M. Kreps Á. László R. Lacey M. van Leeuwen Peter Lévai L. Litov B. Lungwitz M. Makariev Alexander Malakhov M. Mateev G. L. Melkumov A. Mischke M. Mitrovski József Molnár S. Mrówczyński V. Nicolic G. Pálla Apostolos Panagiotou D. Panayotov W. Peryt A. Petridis Miroslav Pikna J. Pluta D. Prindle F. Pühlhofer R. Renfordt Christof Roland Gunther Roland M. Rybczyński Andrzej Rybicki A. Sandoval N. Schmitz T. Schuster P. Seyboth Ferenc Siklér Branislav Sitár E. Skrzypczak M. Słodkowski G. Stefanek R. Stock C. Strabel H. Ströbele Tatjana Šuša I. Szentpétery J. Sziklai M. Szuba P. Szymański V. Trubnikov Dezső Varga M. Vassiliou Gabor Istvan Veres G. Vesztergombi D. Vranić A. Wetzler Z. Włodarczyk A. Wojtaszek I. K. Yoo J. Zim�nyi published in 2007. It has an Open Access status of “green”. You can read and download a PDF Full Text of this paper here.