Michael K. Mitrovski, Christopher Alt, Tome Antičić, B. Baatar, Daniel Barna, Jerzy Bartke, Matthias Behler, Latchezar Betev, Helena Białkowska, Anja Billmeier, Christoph Blume, Bożena Boimska, Michiel Botje, Juraj Bracinik, Roland Bramm, René Brun, Predrag Bunčić, Vladimír Cerny, Panagiotis Christakoglou, Ondrej Chvala, John G. Cramer, Péter Csató, Nikolay Darmenov, Anton Dimitrov, Peter Dinkelaker, Volker Eckardt, Peter Filip, Hans Gerhard Fischer, Dominik Bernhard Flierl, Zoltán Fodor, Panagiota Foka, Peter Freund, Volker Friese, József Gál, Marek Gaździcki, George Georgopoulos, Ewa Gładysz, Sándor Hegyi, Claudia Höhne, Krešo Kadija, Alexandre Karev, Michael Kliemant, Stefan Kniege, Vadim I. Kolesnikov, Thorsten Kollegger, Ewelina Kornaś, 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 Molnár, Stanislaw Mrówczyński, Gabriella Pálla, Apostolos D. Panagiotou, Dobromir Panayotov, Katarzyna Perl, Athanasios Petridis, Miroslav Pikna, Lawrence Pinsky, Falk Pühlhofer, Jeffrey G. Reid, Rainer Arno Ernst Renfordt, Waldemar Retyk, Agnes Carol Joanna Richard, Christof Roland, Gunther Roland, Maciej Rybczyński, Andrzej Rybicki, Andres Sandoval, Hans Sann, Norbert Schmitz, Peter Seyboth, Ferenc Siklér, Branislav Sitar, Ewa Skrzypczak, Grzegorz Stefanek, Reinhard Stock, Herbert Ströbele, Tatjana Šuša, Imre Szentpétery, János Sziklai, Thomas A. Trainor, Dezsö Varga, Maria Vassiliou, Gábor I. Veres, György Vesztergombi, Danilo Vranić, Siegfried Wenig, Alexander Albert Wetzler, Zbigniew Włodarczyk, In-Kwon Yoo, Jacek Zaranek, József Zimányi
- A non-monotonic energy dependence of the K + / pi + ratio with a sharp maximum close to 30 A GeV is observed in central Pb+Pb collisions. Within a statistical model of the early stage, this is interpreted as a sign of the phase transition to a QGP, which causes a sharp change in the energy dependence of the strangeness to entropy ratio. This observation naturally motivates us to study the production of multistrange hyperons (Xi, Omega) as a function of the beam energy. Furthermore it was suggested that the kinematic freeze-out of Omega takes place directly at QGP hadronization. If this is indeed the case, the transverse momentum spectra of the Omega directly reflect the transverse expansion velocity of a hadronizing QGP. In this report we show preliminary NA49 results on Omega - and Omega + production in central Pb+Pb collisions at 40 and 158 A GeV and compare them to measurements of Xi - and Xi + production in central Pb+Pb collisions at 30, 40, 80 and 158 A GeV.
Metadaten| Author: | Michael K. MitrovskiGND, Christopher Alt, Tome AntičićORCiD, B. Baatar, Daniel BarnaORCiD, Jerzy BartkeGND, Matthias BehlerGND, Latchezar BetevORCiDGND, Helena BiałkowskaORCiD, Anja BillmeierGND, Christoph BlumeORCiDGND, Bożena BoimskaORCiD, Michiel BotjeORCiD, Juraj BracinikORCiD, Roland BrammGND, René BrunGND, Predrag Bunčić, Vladimír Cerny, Panagiotis ChristakoglouORCiD, Ondrej ChvalaORCiD, John G. CramerGND, Péter Csató, Nikolay Darmenov, Anton Dimitrov, Peter DinkelakerGND, Volker Eckardt, Peter FilipORCiD, Hans Gerhard Fischer, Dominik Bernhard FlierlGND, Zoltán FodorGND, Panagiota FokaORCiD, Peter Freund, Volker FrieseORCiDGND, József Gál, Marek GaździckiORCiDGND, George Georgopoulos, Ewa GładyszORCiD, Sándor Hegyi, Claudia HöhneGND, Krešo Kadija, Alexandre Karev, Michael KliemantGND, Stefan KniegeGND, Vadim I. KolesnikovORCiD, Thorsten KolleggerORCiDGND, Ewelina Kornaś, 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 Molnár, Stanislaw MrówczyńskiORCiD, Gabriella Pálla, Apostolos D. Panagiotou, Dobromir PanayotovORCiD, Katarzyna Perl, Athanasios PetridisORCiD, Miroslav Pikna, Lawrence PinskyORCiD, Falk PühlhoferGND, Jeffrey G. Reid, Rainer Arno Ernst Renfordt, Waldemar Retyk, Agnes Carol Joanna Richard, Christof RolandORCiDGND, Gunther RolandGND, Maciej RybczyńskiORCiD, Andrzej RybickiORCiD, Andres SandovalORCiD, Hans Sann, Norbert SchmitzGND, Peter SeybothORCiDGND, Ferenc SiklérORCiD, Branislav Sitar, Ewa Skrzypczak, Grzegorz StefanekORCiD, Reinhard StockGND, Herbert Ströbele, Tatjana ŠušaORCiD, Imre Szentpétery, János SziklaiORCiD, Thomas A. TrainorORCiD, Dezsö VargaORCiDGND, Maria VassiliouORCiD, Gábor I. VeresORCiD, György Vesztergombi, Danilo VranićGND, Siegfried WenigORCiD, Alexander Albert WetzlerGND, Zbigniew WłodarczykORCiD, In-Kwon YooORCiDGND, Jacek ZaranekGND, József Zimányi |
|---|
| URN: | urn:nbn:de:hebis:30-16271 |
|---|
| DOI: | https://doi.org/10.48550/arXiv.nucl-ex/0312022 |
|---|
| ArXiv Id: | http://arxiv.org/abs/nucl-ex/0312022 |
|---|
| Document Type: | Preprint |
|---|
| Language: | English |
|---|
| Date of Publication (online): | 2003/12/29 |
|---|
| Date of first Publication: | 2003/12/29 |
|---|
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
|---|
| Creating Corporation: | NA49 collaboration |
|---|
| Contributing Corporation: | International School of Nuclear Physics (25 : 2003 : Erice) |
|---|
| Release Date: | 2005/09/26 |
|---|
| Page Number: | 3 |
|---|
| Note: | Preprint, später in Progress in Particle and Nuclear Physics 53.2004, 1, S. 269-272 |
|---|
| Source: | Prog.Part.Nucl.Phys. 53 (2004), http://arxiv.org/abs/nucl-ex/0312022 |
|---|
| HeBIS-PPN: | 188856293 |
|---|
| Institutes: | Physik / Physik |
|---|
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
|---|
| Sammlungen: | Universitätspublikationen |
|---|
| Licence (German): |  Deutsches Urheberrecht |
|---|
