Phi decay: a relevant source for K- production at SIS energies?
The HADES Collaboration: G.Agakishiev, A.Balanda, B.Bannier,, R.Bassini, D.Belver, A.V.Belyaev, A.Blanco, M.Boehmer, J.L.Boyard,, P.Braun-Munzinger, P.Cabanelas, E.Castro, S.Chernenko, T.Christ,, M.Destefanis, J.Diaz, F.Dohrmann, A.Dybczak, T.Eberl, W.Enghardt,, L.Fabbietti
TL;DR
This paper investigates the production of K+ and K- mesons, including phi decay contributions, in Ar+KCl collisions at 1.756 AGeV using HADES, providing new insights into strangeness production mechanisms.
Contribution
It offers the first detailed phase space distributions and decay contributions of K mesons at SIS energies, enhancing understanding of strangeness production.
Findings
18+-7% of K- mesons originate from phi decay
Provides inverse slope parameters and yields for kaons at SIS energies
Measures phase space distributions of K+ and K- mesons
Abstract
We present phase space distributions and multiplicities of K+, K- and phi mesons produced in Ar+KCl reactions at a kinetic beam energy of 1.756 AGeV and measured with the HADES spectrometer. The inverse slope parameters and yields of kaons supplement the systematics of previous measurements. The percentage of K- mesons coming fromphi decay is found to be 18+- 7%.
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