Sub-threshold production of Ks0 mesons and Λ hyperons in Au+Au collisions at sNN=2.4 GeV

Y. Leifels,J. Adamczewski-Musch,O. Arnold, C. Behnke,A. Belounnas,A. Belyaev,J.C. Berger-Chen, J. Biernat,A. Blanco,C. Blume,M. Böhmer,P. Bordalo,S. Chernenko,L. Chlad,C. Deveaux, J. Dreyer,A. Dybczak,E. Epple,L. Fabbietti,O. Fateev,P. Filip,P. Fonte,C. Franco,J. Friese,I. Fröhlich,T. Galatyuk,J.A. Garzón,R. Gernhäuser,M. Golubeva,R. Greifenhagen,F. Guber,M. Gumberidze,S. Harabasz,T. Heinz,T. Hennino,S. Hlavac,C. Höhne,R. Holzmann, A. Ierusalimov,A. Ivashkin,B. Kämpfer,T. Karavicheva,B. Kardan,I. Koenig,W. Koenig,B.W. Kolb,G. Korcyl,G. Kornakov,R. Kotte,A. Kugler,T. Kunz,A. Kurepin,A. Kurilkin,P. Kurilkin,V. Ladygin,R. Lalik,K. Lapidus,A. Lebedev,L. Lopes,M. Lorenz,T. Mahmoud,L. Maier,A. Mangiarotti, J. Markert,S. Maurus,V. Metag,J. Michel,D.M. Mihaylov,S. Morozov,C. Müntz, R. Münzer,L. Naumann,K. Nowakowski,M. Palka,Y. Parpottas,V. Pechenov,O. Pechenova,O. Petukhov,J. Pietraszko,W. Przygoda,S. Ramos,B. Ramstein,A. Reshetin,P. Rodriguez-Ramos,P. Rosier,A. Rost,A. Sadovsky,P. Salabura, T. Scheib,H. Schuldes,E. Schwab,F. Scozzi,F. Seck,P. Sellheim,I. Selyuzhenkov,J. Siebenson,L. Silva,Yu.G. Sobolev,S. Spataro,S. Spies,H. Ströbele,J. Stroth,P. Strzempek,C. Sturm,O. Svoboda,M. Szala,P. Tlusty,M. Traxler,H. Tsertos, E. Usenko,V. Wagner, C. Wendisch,M.G. Wiebusch, J. Wirth,Y. Zanevsky,P. Zumbruch

PHYSICS LETTERS B（2019）

Cited 39|Views99

No score

Abstract

We present first data on sub-threshold production of K-s(0) mesons and Lambda hyperons in Au+Au collisions at root s(NN) = 2.4 GeV. We observe an universal < A(part)> scaling of hadrons containing strangeness, independent of their corresponding production thresholds. Comparing the yields, their < A(part)> scaling, and the shapes of the rapidity and the p(t) spectra to state-of-the-art transport model (UrQMD, HSD, IQMD) predictions, we find that none of them can simultaneously describe these observables with reasonable chi(2) values. (C) 2019 The Authors. Published by Elsevier B.V.

Translated text

AI Read Science

Must-Reading Tree

Example

Generate MRT to find the research sequence of this paper

Chat Paper

Summary is being generated by the instructions you defined