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Indications for the onset of deconfinement in nucleus nucleus collisions

Dominik Bernhard Flierl, Christopher Alt, Tome Antičić, B. Baatar, Daniel Barna, Jerzy Bartke, Latchezar Betev, Helena Białkowska, Anja Billmeier, Christoph Blume, Bożena Boimska, Michiel Botje, Juraj Bracinik, Roland Bramm, René Brun, Predrag Bunčić, Vladimír Černý, Panagiotis Christakoglou, Ondrej Chvala, John G. Cramer, Péter Csato, Nikolay Darmenov, Anton Dimitrov, Peter Dinkelaker, Volker Eckardt, Gerassimos Farantatos, Zoltán Fodor, Panagiota Foka, Peter Freund, Volker Friese, József Gal, Marek Gaździcki, George Georgopoulos, Ewa Gładysz, Katarzyna Grebieszkow, Sándor Hegyi, Claudia Hohne, Krešo Kadija, Alexandre Karev, Michael Kliemant, Stefan Kniege, Vadim I. Kolesnikov, Thorsten Kollegger, Ewelina Kornas, Robert Korus, Marek Kowalski, Ingrid Kraus, Michal Kreps, Marco van Leeuwen, Péter Lévai, Leandr Litov, Benjamin Lungwitz, Martin Makariev, Aleksandr I. Malakhov, Christina Markert, Matej D. Mateev, Bill W. Mayes, Georgy L. Melkumov, Christine Meurer, André Mischke, Michael Kosta Mitrovski, József Molnar, Stanislaw Mrowczynski, Gabriella Pálla, Apostolos D. Panagiotou, Dobromir Panayotov, Athanasios Petridis, Miroslav Pikna, Lawrence S. Pinsky, Falk Puhlhofer, Jeffrey G. Reid, Rainer Arno Ernst Renfordt, Agnes Carol Joanna Richard, Christof Roland, Gunther Roland, Maciej Rybczyński, Andrzej Rybicki, Andres Sandoval, Hans Sann, Norbert Schmitz, Peter Seyboth, Ferenc Sikler, Branislav Sitar, Ewa Skrzypczak, Grzegorz Stefanek, Reinhard Stock, Herbert Ströbele, Tatjana Šuša, Imre Szentpetery, János Sziklai, Thomas A. Trainor, Victor Trubnikov, Dezsö Varga, Maria Vassiliou, Gábor I. Veres, György Vesztergombi, Danilo Vranić, Alexander Albert Wetzler, Zbigniew Włodarczyk, In-Kwon Yoo, Jacek Zaranek, József Zimanyi

  • The hadronic final state of central Pb+Pb collisions at 20, 30, 40, 80, and 158 AGeV has been measured by the CERN NA49 collaboration. The mean transverse mass of pions and kaons at midrapidity stays nearly constant in this energy range, whereas at lower energies, at the AGS, a steep increase with beam energy was measured. Compared to p+p collisions as well as to model calculations, anomalies in the energy dependence of pion and kaon production at lower SPS energies are observed. These findings can be explained, assuming that the energy density reached in central A+A collisions at lower SPS energies is sufficient to force the hot and dense nuclear matter into a deconfined phase.

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Author:Dominik Bernhard FlierlGND, Christopher Alt, Tome AntičićORCiD, B. Baatar, Daniel BarnaORCiD, Jerzy BartkeGND, Latchezar BetevORCiDGND, Helena BiałkowskaORCiD, Anja BillmeierGND, Christoph BlumeORCiDGND, Bożena BoimskaORCiD, Michiel BotjeORCiD, Juraj BracinikORCiD, Roland BrammGND, René BrunGND, Predrag Bunčić, Vladimír Černý, Panagiotis ChristakoglouORCiD, Ondrej ChvalaORCiD, John G. CramerGND, Péter Csato, Nikolay Darmenov, Anton Dimitrov, Peter DinkelakerGND, Volker Eckardt, Gerassimos Farantatos, Zoltán FodorGND, Panagiota FokaORCiD, Peter Freund, Volker FrieseORCiDGND, József Gal, Marek GaździckiORCiD, George Georgopoulos, Ewa GładyszORCiD, Katarzyna GrebieszkowORCiD, Sándor Hegyi, Claudia HohneGND, Krešo Kadija, Alexandre Karev, Michael KliemantGND, Stefan KniegeGND, Vadim I. KolesnikovORCiD, Thorsten KolleggerORCiDGND, Ewelina Kornas, Robert Korus, Marek Kowalski, Ingrid KrausGND, Michal KrepsORCiD, Marco van LeeuwenORCiDGND, Péter LévaiGND, Leandr LitovORCiD, Benjamin LungwitzGND, Martin MakarievORCiD, Aleksandr I. MalakhovGND, Christina MarkertORCiDGND, Matej D. MateevGND, Bill W. Mayes, Georgy L. Melkumov, Christine MeurerGND, André MischkeORCiD, Michael Kosta MitrovskiGND, József Molnar, Stanislaw MrowczynskiORCiD, Gabriella Pálla, Apostolos D. Panagiotou, Dobromir PanayotovORCiD, Athanasios PetridisORCiD, Miroslav Pikna, Lawrence S. PinskyORCiD, Falk PuhlhoferGND, Jeffrey G. Reid, Rainer Arno Ernst Renfordt, Agnes Carol Joanna Richard, Christof RolandORCiDGND, Gunther RolandGND, Maciej RybczyńskiORCiD, Andrzej RybickiORCiD, Andres SandovalORCiD, Hans Sann, Norbert SchmitzGND, Peter SeybothORCiDGND, Ferenc SiklerORCiD, Branislav Sitar, Ewa Skrzypczak, Grzegorz StefanekORCiD, Reinhard StockGND, Herbert Ströbele, Tatjana ŠušaORCiD, Imre Szentpetery, János SziklaiORCiD, Thomas A. TrainorORCiD, Victor Trubnikov, Dezsö VargaORCiDGND, Maria VassiliouORCiD, Gábor I. VeresORCiD, György Vesztergombi, Danilo VranićGND, Alexander Albert WetzlerGND, Zbigniew WłodarczykORCiD, In-Kwon YooORCiDGND, Jacek ZaranekGND, József Zimanyi
URN:urn:nbn:de:hebis:30-16144
DOI:https://doi.org/10.48550/arXiv.nucl-ex/0412018
ArXiv Id:http://arxiv.org/abs/0412018v1
Document Type:Working Paper
Language:English
Date of Publication (online):2004/12/09
Date of first Publication:2004/12/09
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Creating Corporation:NA49 collaboration
Release Date:2005/09/26
Page Number:4
Note:
Report number: IKF-2004-02
Source:Published in AIP Conf.Proc.756:433-435,2005 Also in *Villasimius 2004, Quark confinement and the hadron spectrum* 433-435^M
HeBIS-PPN:190332336
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht