%0 Journal Article
%T Azimuthal Emission Patterns of $K^{+}$ and of $ K^{-} $ Mesons in Ni + Ni Collisions near the Strangeness Production Threshold
%A V. Zinyuk
%A T. I. Kang
%A Y. Leifels
%A N. Herrmann
%A B. Hong
%A R. Averbeck
%A A. Andronic
%A V. Barret
%A Z. Basrak
%A N. Bastid
%A M. L. Benabderrahmane
%A M. Berger
%A P. Buehler
%A M. Cargnelli
%A R. £¿aplar
%A I. Carevic
%A P. Crochet
%A I. Deppner
%A P. Dupieux
%A M. D£¿elalija
%A L. Fabbietti
%A Z. Fodor
%A P. Gasik
%A I. Ga£¿pari£¿
%A Y. Grishkin
%A O. N. Hartmann
%A K. D. Hildenbrand
%A J. Kecskemeti
%A Y. J. Kim
%A M. Kirejczyk
%A M. Ki£¿
%A P. Koczon
%A R. Kotte
%A A. Lebedev
%A A. Le F¨¨vre
%A J. L. Liu
%A X. Lopez
%A V. Manko
%A J. Marton
%A T. Matulewicz
%A R. M¨¹nzer
%A M. Petrovici
%A K. Piasecki
%A F. Rami
%A A. Reischl
%A W. Reisdorf
%A M. S. Ryu
%A P. Schmidt
%A A. Sch¨¹ttauf
%A Z. Seres
%A B. Sikora
%A K. S. Sim
%A V. Simion
%A K. Siwek- ilczy¨½ska
%A V. Smolyankin
%A K. Suzuki
%A Z. Tyminski
%A P. Wagner
%A E. Widmann
%A K. Wi£¿niewski
%A Z. G. Xiao
%A I. Yushmanov
%A Y. Zhang
%A A. Zhilin
%A J. Zmeskal
%J Physics
%D 2014
%I arXiv
%R 10.1103/PhysRevC.90.025210
%X Azimuthal emission patterns of $K^\pm$ mesons have been measured in Ni + Ni collisions with the FOPI spectrometer at a beam kinetic energy of 1.91 A GeV. The transverse momentum $p_{T}$ integrated directed and elliptic flow of $K^{+}$ and $K^{-}$ mesons as well as the centrality dependence of $p_{T}$ - differential directed flow of $K^{+}$ mesons are compared to the predictions of HSD and IQMD transport models. The data exhibits different propagation patterns of $K^{+}$ and $K^{-}$ mesons in the compressed and heated nuclear medium and favor the existence of a kaon-nucleon in-medium potential, repulsive for $K^{+}$ mesons and attractive for $K^{-}$ mesons.
%U http://arxiv.org/abs/1403.1504v3