학술논문
Sub-threshold production of Ks0 mesons and Λ hyperons in Au+Au collisions at sNN=2.4 GeV
Document Type
article
Author
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; Y. Leifels
Source
Physics Letters B, Vol 793, Iss , Pp 457-463 (2019)
Subject
Language
English
ISSN
0370-2693
Abstract
We present first data on sub-threshold production of Ks0 mesons and Λ hyperons in Au+Au collisions at sNN=2.4 GeV. We observe an universal 〈Apart〉 scaling of hadrons containing strangeness, independent of their corresponding production thresholds. Comparing the yields, their 〈Apart〉 scaling, and the shapes of the rapidity and the pt 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 χ2 values.