Role of phi decays for K- yields in relativistic heavy-ion collisions

Details Role of phi decays for K- yields in relativistic heavy-ion collisions Role of phi decays for K- yields in relativistic heavy-ion collisions

2009-11-19

arxiv.org/abs/0911.3762v1

Phys.Rev.C81:034902,2010

Physics

Nuclear Physics

Nuclear Theory

24 pages, 19 figures

Scientific paper

10.1103/PhysRevC.81.034902

The production of strange mesons in collisions of Ar+KCl at a kinetic beam energy of 1.756 AGeV is studied within a transport model of Boltzmann-\"Uhling-Uhlenbeck (BUU) type. In particular, $\phi, K^+$ and $K^-$ yields and spectra are compared to the data mesured recently by the HADES collaboration and the $\phi$ yield measured previously by the FOPI collaboration. Our results are in agreement with these data thus presenting an interpretation of the subleading role of $\phi$ decays into $K^-$'s and confirming the importance of the strangeness-exchange channels for $K^-$ production.

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