Hyperon production in Ar+KCl collisions at 1.76A GeV
Nuclear Experiment
2015-03-17 v3 High Energy Physics - Experiment
Abstract
We present transverse momentum spectra, rapidity distribution and multiplicity of Lambda-hyperons measured with the HADES spectrometer in the reaction Ar(1.76A GeV)+KCl. The yield of Xi- is calculated from our previously reported Xi-/(Lambda+Sigma0) ratio and compared to other strange particle multiplicities. Employing a strangeness balance equation the multiplicities of the yet unmeasured charged Sigma hyperons can be estimated. Finally a statistical hadronization model is used to fit the yields of pi-, K+, K0s, 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 particles.
Keywords
Cite
@article{arxiv.1010.1675,
title = {Hyperon production in Ar+KCl collisions at 1.76A GeV},
author = {G. Agakishiev and A. Balanda and B. Bannier and R. Bassini and D. Belver and A. Belyaev and A. Blanco and M. Böhmer and J. L. Boyard and P. Cabanelas and E. Castro and S. Chernenko and T. Christ and M. Destefanis and J. Diaz and F. Dohrmann and A. Dybczak and T. Eberl and E. Epple and L. Fabbietti and O. Fateev and P. Finocchiaro and P. Fonte and J. Friese and I. Froehlich and T. Galatyuk and J. A. Garzon and R. Gernhaeuser and A. Gil and C. Gilardi and M. Golubeva and D. Gonzalez-Diaz and F. Guber and M. Gumberidze and M. Heilmann and T. Heinz and T. Hennino and R. Holzmann and P. Huck and I. Iori and A. Ivashkin and M. Jurkovic and B. Kaempfer and K. Kanaki and T. Karavicheva and D. Kirschner and I. Koenig and W. Koenig and B. W. Kolb and R. Kotte and F. Krizek and R. Kruecken and W. Kuehn and A. Kugler and A. Kurepin and S. Lang and J. S. Lange and K. Lapidus and T. Liu and L. Lopes and M. Lorenz and L. Maier and A. Mangiarotti and J. Markert and V. Metag and B. Michalska and J. Michel and D. Mishra and E. Moriniere and J. Mousa and C. Muentz and L. Naumann and J. Otwinowski and Y. C. Pachmayer and M. Palka and Y. Parpottas and V. Pechenov and O. Pechenova and T. Perez-Cavalcanti and J. Pietraszko and W. Przygoda and B. Ramstein and A. Reshetin and M. Roy-Stephan and A. Rustamov and A. Sadovsky and B. Sailer and P. Salabura and A. Schmah and E. Schwab and J. Siebenson and Yu. G. Sobolev and S. Spataro and B. Spruck and H. Stroebele and J. Stroth and C. Sturm and A. Tarantola and K. Teilab and P. Tlusty and M. Traxler and R. Trebacz and H. Tsertos and V. Wagner and M. Weber and C. Wendisch and M. Wisniowski and T. Wojcik and J. Wuestenfeld and S. Yurevich and Y. Zanevsky and P. Zhou and P. Zumbruch and HADES Collaboration},
journal= {arXiv preprint arXiv:1010.1675},
year = {2015}
}