Sub-threshold production of K-s(0) mesons and Lambda hyperons in Au plus Au collisions at root s(NN)=2.4 GeV

0505688 - ÚJF 2020 RIV NL eng J - Journal Article
Adamczewski-Musch, J. - Arnold, O. - Behnke, C. - Chlad, Lukáš - Kugler, Andrej - Rodriguez Ramos, Pablo - Sobolev, Yuri, G. - Svoboda, Ondřej - Tlustý, Pavel - Wagner, Vladimír … Total 116 authors
Sub-threshold production of K-s(0) mesons and Lambda hyperons in Au plus Au collisions at root s(NN)=2.4 GeV.
Physics Letters. B. Roč. 793, č. 6 (2019), s. 457-463. ISSN 0370-2693. E-ISSN 1873-2445
R&D Projects: GA MŠMT EF16_013/0001677; GA MŠMT LM2015049; GA MŠMT LTT17003
Institutional support: RVO:61389005
Keywords : HADES * FAIR * nucleus nucleus collisions
OECD category: Nuclear physics
Impact factor: 4.384, year: 2019
Method of publishing: Open access
https://doi.org/10.1016/j.physletb.2019.03.065

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.
Permanent Link: http://hdl.handle.net/11104/0297099