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Energy dependence of Λ [lambda] and Λ ̄ [anti-lambda] production at CERN-SPS energies

André Mischke, Sergey V. Afanasiev, Tome Antičić, B. Baatar, Daniel Barna, Jerzy Bartke, Robert Allan Barton, Matthias Behler, Latchezar Betev, Helena Białkowska, Anja Billmeier, Christoph Blume, Charles O. Blyth, Bożena Boimska, Michiel Botje, Juraj Bracinik, Roland Bramm, René Brun, Predrag Bunčić, Vladimír Cerny, Ondrej Chvala, John G. Cramer, Péter Csató, Peter Dinkelaker, Volker Eckardt, Peter Filip, Hans Gerhard Fischer, Zoltán Fodor, Panagiota Foka, Peter Freund, Volker Friese, József Gál, Marek Gaździcki, George Georgopoulos, Ewa Gładysz-Dziaduś, Sándor Hegyi, Claudia Höhne, George J. Igo, Peter Graham Jones, Krešo Kadija, Alexandre Karev, Vadim I. Kolesnikov, Thorsten Kollegger, Marek Kowalski, Ingrid Kraus, Michal Kreps, Marco van Leeuwen, Péter Lévai, Aleksandr I. Malakhov, Spyridon Margetis, Christina Markert, Bill W. Mayes, Georgy L. Melkumov, Christine Meurer, André Mischke, Michael Kosta Mitrovski, József Molnár, John M. Nelson, Gabriella Pálla, Apostolos D. Panagiotou, Katarzyna Perl, Athanasios Petridis, Miroslav Pikna, Lawrence Pinsky, Falk Pühlhofer, Jeffrey G. Reid, Rainer Arno Ernst Renfordt, Waldemar Retyk, Christof Roland, Gunther Roland, Andrzej Rybicki, Thomas Sammer, Andres Sandoval, Hans Sann, Norbert Schmitz, Peter Seyboth, Ferenc Siklér, Branislav Sitar, Ewa Skrzypczak, Gordon Thomas Anderson Squier, 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, Charles A. Whitten, In-Kwon Yoo, Jacek Zaranek, József Zimányi

  • Rapidity distributions for Lambda and anti-Lambda hyperons in central Pb-Pb collisions at 40, 80 and 158 AGeV and for K 0 s mesons at 158 AGeV are presented. The lambda multiplicities are studied as a function of collision energy together with AGS and RHIC measurements and compared to model predictions. A different energy dependence of the Lambda/pi and anti-Lambda/pi is observed. The anti-Lambda/Lambda ratio shows a steep increase with collision energy. Evidence for a anti-Lambda/anti-p ratio greater than 1 is found at 40 AGeV.

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Author:André MischkeORCiD, Sergey V. AfanasievORCiDGND, Tome AntičićORCiD, B. Baatar, Daniel BarnaORCiD, Jerzy BartkeGND, Robert Allan Barton, Matthias BehlerGND, Latchezar BetevORCiDGND, Helena BiałkowskaORCiD, Anja BillmeierGND, Christoph BlumeORCiDGND, Charles O. Blyth, Bożena BoimskaORCiD, Michiel BotjeORCiD, Juraj BracinikORCiD, Roland BrammGND, René BrunGND, Predrag Bunčić, Vladimír Cerny, Ondrej ChvalaORCiD, John G. CramerGND, Péter Csató, Peter DinkelakerGND, Volker Eckardt, Peter FilipORCiD, Hans Gerhard Fischer, Zoltán FodorGND, Panagiota FokaORCiD, Peter Freund, Volker FrieseORCiDGND, József Gál, Marek GaździckiORCiD, George Georgopoulos, Ewa Gładysz-DziaduśORCiD, Sándor Hegyi, Claudia HöhneGND, George J. Igo, Peter Graham Jones, Krešo Kadija, Alexandre Karev, Vadim I. KolesnikovORCiD, Thorsten KolleggerORCiDGND, Marek Kowalski, Ingrid KrausGND, Michal KrepsORCiD, Marco van LeeuwenORCiDGND, Péter LévaiGND, Aleksandr I. MalakhovGND, Spyridon Margetis, Christina MarkertORCiDGND, Bill W. Mayes, Georgy L. Melkumov, Christine MeurerGND, André MischkeORCiD, Michael Kosta MitrovskiGND, József Molnár, John M. Nelson, Gabriella Pálla, Apostolos D. Panagiotou, Katarzyna Perl, Athanasios PetridisORCiD, Miroslav Pikna, Lawrence PinskyORCiD, Falk PühlhoferGND, Jeffrey G. Reid, Rainer Arno Ernst Renfordt, Waldemar Retyk, Christof RolandORCiDGND, Gunther RolandGND, Andrzej RybickiORCiD, Thomas SammerGND, Andres SandovalORCiD, Hans Sann, Norbert SchmitzGND, Peter SeybothORCiDGND, Ferenc SiklérORCiD, Branislav Sitar, Ewa Skrzypczak, Gordon Thomas Anderson Squier, 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, Charles A. Whitten, In-Kwon YooORCiDGND, Jacek ZaranekGND, József Zimányi
URN:urn:nbn:de:hebis:30-13791
DOI:https://doi.org/10.48550/arXiv.nucl-ex/0209002
Document Type:Preprint
Language:English
Year of Completion:2002
Date of first Publication:2002/09/04
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Creating Corporation:NA49 Collaboration
Release Date:2005/08/11
Page Number:6
Note:
Preprint, später in Nuclear Physics A 715.2003, S. 453-457
Source:Nucl.Phys. A715 (2003) 453-457 , http://arxiv.org/abs/nucl-ex/0209002
HeBIS-PPN:185747566
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoDeutsches Urheberrecht