Sub-threshold production of K                         s                                                                              0                          mesons and Λ hyperons in Au+Au collisions at s                         NN                         =2.4 GeV

HADES Collaboration

doi:10.1016/j.physletb.2019.03.065

Sub-threshold production of K _s ⁰ mesons and Λ hyperons in Au+Au collisions at s _NN =2.4 GeV

HADES Collaboration

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

GSI Helmholtz Center
Cluster of Excellence E-conversion
Technical University of Munich
Johann Wolfgang Goethe University
CNRS/IN2P3 and Université Paris 11
Joint Inst. for Nuclear Research
Jagiellonian University
LIP-Laboratorio de Instrumentacao e Fisica Experimental de Particulas
Nuclear Physics Institute of the Cas
Justus-Liebig-Universität Gießen
HelmholtzZentrum Dresden-Rossendorf
Institute of Physics SAS
Technische Universität Darmstadt
Universidad de Santiago de Compostela
Institute for Nuclear Research of the Russian Academy of Sciences
ITEP
National Research Nuclear University MEPhI
University of Cyprus
University of Torino

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

We present first data on sub-threshold production of K _s ⁰ mesons and Λ hyperons in Au+Au collisions at 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 χ ² values.

Original language	English
Pages (from-to)	457-463
Number of pages	7
Journal	Physics Letters B
Volume	793
DOIs	https://doi.org/10.1016/j.physletb.2019.03.065
State	Published - 10 Jun 2019

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HADES Collaboration (2019). Sub-threshold production of K _s ⁰ mesons and Λ hyperons in Au+Au collisions at s _NN =2.4 GeV Physics Letters B, 793, 457-463. https://doi.org/10.1016/j.physletb.2019.03.065

HADES Collaboration. / Sub-threshold production of K _s ⁰ mesons and Λ hyperons in Au+Au collisions at s _NN =2.4 GeV In: Physics Letters B. 2019 ; Vol. 793. pp. 457-463.

@article{fccece1fb17846a3bcdaa2be1b7cfa4e,

title = " Sub-threshold production of K s 0 mesons and Λ hyperons in Au+Au collisions at s NN =2.4 GeV ",

abstract = " We present first data on sub-threshold production of K s 0 mesons and Λ hyperons in Au+Au collisions at 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 χ 2 values.",

author = "\{HADES Collaboration\} and J. Adamczewski-Musch and O. Arnold and C. Behnke and A. Belounnas and A. Belyaev and Berger-Chen, \{J. C.\} and J. Biernat and A. Blanco and C. Blume and M. B{\"o}hmer and P. Bordalo and S. Chernenko and L. Chlad and C. Deveaux and J. Dreyer and A. Dybczak and E. Epple and L. Fabbietti and O. Fateev and P. Filip and P. Fonte and C. Franco and J. Friese and I. Fr{\"o}hlich and T. Galatyuk and Garz{\'o}n, \{J. A.\} and R. Gernh{\"a}user and M. Golubeva and R. Greifenhagen and F. Guber and M. Gumberidze and S. Harabasz and T. Heinz and T. Hennino and S. Hlavac and C. H{\"o}hne and R. Holzmann and A. Ierusalimov and A. Ivashkin and B. K{\"a}mpfer and T. Karavicheva and B. Kardan and I. Koenig and W. Koenig and Kolb, \{B. W.\} and G. Korcyl and G. Kornakov and R. Kotte and A. Kugler and T. Kunz",

note = "Publisher Copyright: {\textcopyright} 2019 The Authors",

year = "2019",

month = jun,

day = "10",

doi = "10.1016/j.physletb.2019.03.065",

language = "English",

volume = "793",

pages = "457--463",

journal = "Physics Letters B",

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HADES Collaboration 2019, ' Sub-threshold production of K _s ⁰ mesons and Λ hyperons in Au+Au collisions at s _NN =2.4 GeV ', Physics Letters B, vol. 793, pp. 457-463. https://doi.org/10.1016/j.physletb.2019.03.065

Sub-threshold production of K _s ⁰ mesons and Λ hyperons in Au+Au collisions at s _NN =2.4 GeV . / HADES Collaboration.
In: Physics Letters B, Vol. 793, 10.06.2019, p. 457-463.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Sub-threshold production of K s 0 mesons and Λ hyperons in Au+Au collisions at s NN =2.4 GeV

AU - HADES Collaboration

AU - Adamczewski-Musch, J.

AU - Arnold, O.

AU - Behnke, C.

AU - Belounnas, A.

AU - Belyaev, A.

AU - Berger-Chen, J. C.

AU - Biernat, J.

AU - Blanco, A.

AU - Blume, C.

AU - Böhmer, M.

AU - Bordalo, P.

AU - Chernenko, S.

AU - Chlad, L.

AU - Deveaux, C.

AU - Dreyer, J.

AU - Dybczak, A.

AU - Epple, E.

AU - Fabbietti, L.

AU - Fateev, O.

AU - Filip, P.

AU - Fonte, P.

AU - Franco, C.

AU - Friese, J.

AU - Fröhlich, I.

AU - Galatyuk, T.

AU - Garzón, J. A.

AU - Gernhäuser, R.

AU - Golubeva, M.

AU - Greifenhagen, R.

AU - Guber, F.

AU - Gumberidze, M.

AU - Harabasz, S.

AU - Heinz, T.

AU - Hennino, T.

AU - Hlavac, S.

AU - Höhne, C.

AU - Holzmann, R.

AU - Ierusalimov, A.

AU - Ivashkin, A.

AU - Kämpfer, B.

AU - Karavicheva, T.

AU - Kardan, B.

AU - Koenig, I.

AU - Koenig, W.

AU - Kolb, B. W.

AU - Korcyl, G.

AU - Kornakov, G.

AU - Kotte, R.

AU - Kugler, A.

AU - Kunz, T.

PY - 2019/6/10

Y1 - 2019/6/10

N2 - We present first data on sub-threshold production of K s 0 mesons and Λ hyperons in Au+Au collisions at 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 χ 2 values.

AB - We present first data on sub-threshold production of K s 0 mesons and Λ hyperons in Au+Au collisions at 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 χ 2 values.

UR - https://www.scopus.com/pages/publications/85065742013

U2 - 10.1016/j.physletb.2019.03.065

DO - 10.1016/j.physletb.2019.03.065

M3 - Article

AN - SCOPUS:85065742013

SN - 0370-2693

VL - 793

SP - 457

EP - 463

JO - Physics Letters B

JF - Physics Letters B

ER -

HADES Collaboration. Sub-threshold production of K _s ⁰ mesons and Λ hyperons in Au+Au collisions at s _NN =2.4 GeV Physics Letters B. 2019 Jun 10;793:457-463. doi: 10.1016/j.physletb.2019.03.065

Sub-threshold production of K _s ⁰ mesons and Λ hyperons in Au+Au collisions at s _NN =2.4 GeV

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