Sub-threshold production of K$^{0}_{s}$ mesons and ${\Lambda}$ hyperons in Au+Au collisions at $\sqrt{s_{NN}}$ = 2.4 GeV - Archive ouverte HAL Access content directly
Journal Articles Phys.Lett.B Year : 2019

Sub-threshold production of K$^{0}_{s}$ mesons and ${\Lambda}$ hyperons in Au+Au collisions at $\sqrt{s_{NN}}$ = 2.4 GeV

J. Adamczewski-Musch , O. Arnold , C. Behnke , A. Belounnas (1) , 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 (1) , 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 (1) , A. Reshetin , P. Rodriguez-Ramos , P. Rosier (1) , A. Rost , A. Sadovsky , P. Salabura , T. Scheib , H. Schuldes , E. Schwab , F. Scozzi (1) , 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
J. Adamczewski-Musch
  • Function : Author
O. Arnold
  • Function : Author
C. Behnke
  • Function : Author
A. Belyaev
  • Function : Author
J.C. Berger-Chen
  • Function : Author
J. Biernat
  • Function : Author
A. Blanco
  • Function : Author
C. Blume
  • Function : Author
M. Böhmer
  • Function : Author
P. Bordalo
  • Function : Author
S. Chernenko
  • Function : Author
L. Chlad
  • Function : Author
C. Deveaux
  • Function : Author
J. Dreyer
  • Function : Author
A. Dybczak
  • Function : Author
E. Epple
  • Function : Author
L. Fabbietti
  • Function : Author
O. Fateev
  • Function : Author
P. Filip
  • Function : Author
P. Fonte
  • Function : Author
C. Franco
  • Function : Author
J. Friese
  • Function : Author
I. Fröhlich
  • Function : Author
T. Galatyuk
  • Function : Author
J.A. Garzón
  • Function : Author
R. Gernhäuser
  • Function : Author
M. Golubeva
  • Function : Author
R. Greifenhagen
  • Function : Author
F. Guber
  • Function : Author
M. Gumberidze
  • Function : Author
S. Harabasz
  • Function : Author
T. Heinz
S. Hlavac
  • Function : Author
C. Höhne
  • Function : Author
R. Holzmann
  • Function : Author
A. Ierusalimov
  • Function : Author
A. Ivashkin
  • Function : Author
B. Kämpfer
  • Function : Author
T. Karavicheva
  • Function : Author
B. Kardan
  • Function : Author
I. Koenig
  • Function : Author
W. Koenig
  • Function : Author
B.W. Kolb
  • Function : Author
G. Korcyl
  • Function : Author
G. Kornakov
  • Function : Author
R. Kotte
  • Function : Author
A. Kugler
  • Function : Author
T. Kunz
  • Function : Author
A. Kurepin
  • Function : Author
A. Kurilkin
  • Function : Author
P. Kurilkin
  • Function : Author
V. Ladygin
  • Function : Author
R. Lalik
  • Function : Author
K. Lapidus
  • Function : Author
A. Lebedev
  • Function : Author
L. Lopes
  • Function : Author
M. Lorenz
  • Function : Author
T. Mahmoud
  • Function : Author
L. Maier
  • Function : Author
A. Mangiarotti
  • Function : Author
J. Markert
  • Function : Author
S. Maurus
  • Function : Author
V. Metag
  • Function : Author
J. Michel
  • Function : Author
D.M. Mihaylov
  • Function : Author
S. Morozov
  • Function : Author
C. Müntz
  • Function : Author
R. Münzer
  • Function : Author
L. Naumann
  • Function : Author
K. Nowakowski
  • Function : Author
M. Palka
  • Function : Author
Y. Parpottas
  • Function : Author
V. Pechenov
  • Function : Author
O. Pechenova
  • Function : Author
O. Petukhov
  • Function : Author
J. Pietraszko
  • Function : Author
W. Przygoda
  • Function : Author
S. Ramos
  • Function : Author
A. Reshetin
  • Function : Author
P. Rodriguez-Ramos
  • Function : Author
A. Rost
  • Function : Author
A. Sadovsky
  • Function : Author
P. Salabura
  • Function : Author
T. Scheib
  • Function : Author
H. Schuldes
  • Function : Author
E. Schwab
  • Function : Author
F. Seck
  • Function : Author
P. Sellheim
  • Function : Author
I. Selyuzhenkov
  • Function : Author
J. Siebenson
  • Function : Author
L. Silva
Yu.G. Sobolev
  • Function : Author
S. Spataro
  • Function : Author
S. Spies
  • Function : Author
H. Ströbele
  • Function : Author
J. Stroth
  • Function : Author
P. Strzempek
  • Function : Author
C. Sturm
  • Function : Author
O. Svoboda
  • Function : Author
M. Szala
  • Function : Author
P. Tlusty
  • Function : Author
M. Traxler
  • Function : Author
H. Tsertos
  • Function : Author
E. Usenko
  • Function : Author
V. Wagner
  • Function : Author
C. Wendisch
  • Function : Author
M.G. Wiebusch
  • Function : Author
J. Wirth
  • Function : Author
Y. Zanevsky
  • Function : Author
P. Zumbruch
  • Function : Author
Y. Leifels
  • Function : Author

Abstract

We present first data on sub-threshold production of K s0 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.

Dates and versions

hal-01990456 , version 1 (23-01-2019)

Identifiers

Cite

J. Adamczewski-Musch, O. Arnold, C. Behnke, A. Belounnas, A. Belyaev, et al.. Sub-threshold production of K$^{0}_{s}$ mesons and ${\Lambda}$ hyperons in Au+Au collisions at $\sqrt{s_{NN}}$ = 2.4 GeV. Phys.Lett.B, 2019, 793, pp.457-463. ⟨10.1016/j.physletb.2019.03.065⟩. ⟨hal-01990456⟩
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