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Hyperon production in Ar + KCl collisions at 1.76A GeV

G. Agakishiev,A. Bałanda,B. Bannier,R. Bassini,D. Belver,A. Belyaev,A. Blanco,M. Böhmer,J. L. Boyard,P. Cabanelas,E. Castro,S. Chernenko,T. Christ,M. Destefanis,Julio Pérez Díaz,F. Dohrmann,A. Dybczak,T. Eberl,Eliane Epple,Laura Fabbietti,O. Fateev,P. Finocchiaro,P. Fonte,J. Friese,I. Fröhlich,T. Galatyuk,J. A. Garzón,R. Gernhäuser,A. Gil,C. Gilardi,M. Golubeva,D. González-Díaz,F. Guber,M. Gumberidze,Manuel Heilmann,T. Heinz,T. Hennino,R. Holzmann,P. Huck,I. Iori,A. Ivashkin,M. Jurković,B. Kämpfer,K. Kanaki,Tatiana Karavicheva,D. Kirschner,I. Köenig,W. Koenig,B. W. Kolb,R. Kötte,Filip Křížek,R. Krücken,W. Kühn,А. Куглер,Alexander Kurepin,S. Lang,J. S. Lange,Kirill Lapidus,T. Liu,L. Lopes,M. Lorenz,L. Maier,A. Mangiarotti,J. Markert,V. Metag,B. Michalska,J. Michel,D. Mishra,E. Morinière,Jehad Mousa,C. Müntz,L. Naumann,Jacek Tomasz Otwinowski,Yvonne Chiara Pachmayer,Marek Pałka,Y. Parpottas,V. Pechenov,O. Pechenova,T. Pérez Cavalcanti,J. Pietraszko,W. Przygoda,B. Ramstein,A. Reshetin,M. Roy-Stéphan,Anar Rustamov,A. Sadovsky,B. Sailer,P. Salabura,Alexander Schmah,E. Schwab,J. Siebenson,Yu. G. Sobolev,S. Spataro,B. Spruck,H. Ströbele,J. Stroth,C. Sturm,A. Tarantola,K. Teilab,P. Tlustý,M. Traxler,R. Trȩbacz,H. Tsertos,V. Wagner,M. Weber,C. Wendisch,M. Wiśniowski,Tomasz Wójcik,J. Wüstenfeld,S. Yurevich,Y. Zanevsky,Pei Zhou,P. Zumbruch

Hyperon

Physics

Hadronization

2011

We present transverse momentum spectra, rapidity distribution and multiplicity of $ \Lambda$ -hyperons measured with the HADES spectrometer in the reaction Ar(1.76AGeV) + KCl . The yield of $ \Xi^{{-}}_{}$ is calculated from our previously reported $ \Xi^{{-}}_{}$ /( $ \Lambda$ + $ \Sigma^{{0}}_{}$ ) ratio and compared to other strange particle multiplicities. Employing a strangeness balance equation the multiplicities of the yet unmeasured $ \Sigma^{{\pm}}_{}$ -hyperons can be estimated. Finally a statistical hadronization model is used to fit the yields of $ \pi^{-}_{}$ , K+, K 0 s , K-, $ \phi$ , $ \Lambda$ and $ \Xi^{-}_{}$ . The resulting chemical freeze-out temperature of T = (76±2) MeV is compared to the measured slope parameters obtained from fits to the transverse mass distributions of the different particles.

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“Hyperon production in Ar + KCl collisions at 1.76A GeV” is a paper by G. Agakishiev A. Bałanda B. Bannier R. Bassini D. Belver A. Belyaev A. Blanco M. Böhmer J. L. Boyard P. Cabanelas E. Castro S. Chernenko T. Christ M. Destefanis Julio Pérez Díaz F. Dohrmann A. Dybczak T. Eberl Eliane Epple Laura Fabbietti O. Fateev P. Finocchiaro P. Fonte J. Friese I. Fröhlich T. Galatyuk J. A. Garzón R. Gernhäuser A. Gil C. Gilardi M. Golubeva D. González-Díaz F. Guber M. Gumberidze Manuel Heilmann T. Heinz T. Hennino R. Holzmann P. Huck I. Iori A. Ivashkin M. Jurković B. Kämpfer K. Kanaki Tatiana Karavicheva D. Kirschner I. Köenig W. Koenig B. W. Kolb R. Kötte Filip Křížek R. Krücken W. Kühn А. Куглер Alexander Kurepin S. Lang J. S. Lange Kirill Lapidus T. Liu L. Lopes M. Lorenz L. Maier A. Mangiarotti J. Markert V. Metag B. Michalska J. Michel D. Mishra E. Morinière Jehad Mousa C. Müntz L. Naumann Jacek Tomasz Otwinowski Yvonne Chiara Pachmayer Marek Pałka Y. Parpottas V. Pechenov O. Pechenova T. Pérez Cavalcanti J. Pietraszko W. Przygoda B. Ramstein A. Reshetin M. Roy-Stéphan Anar Rustamov A. Sadovsky B. Sailer P. Salabura Alexander Schmah E. Schwab J. Siebenson Yu. G. Sobolev S. Spataro B. Spruck H. Ströbele J. Stroth C. Sturm A. Tarantola K. Teilab P. Tlustý M. Traxler R. Trȩbacz H. Tsertos V. Wagner M. Weber C. Wendisch M. Wiśniowski Tomasz Wójcik J. Wüstenfeld S. Yurevich Y. Zanevsky Pei Zhou P. Zumbruch published in 2011. It has an Open Access status of “hybrid”. You can read and download a PDF Full Text of this paper here.