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

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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 O.V.Fateev P.Finocchiaro P.Fonte J.Friese I.Froehlich T.Galatyuk J.A.Garzon R.Gernhaeuser A.Gil1 C.Gilardi M.Golubeva D.Gonzalez-Diaz F.Guber M.Heilmann T.Heinz T.Hennino R.Holzmann A.Ierusalimov I.Iori A.Ivashkin M.Jurkovic B.Kaempfer K.Kanaki T.Karavicheva D.Kirschner I.Koenig W.Koenig B.W.Kolb R.Kotte F.Krizek R.Kruecken W.Kuehn A.Kugler A.Kurepin S.Lang J.S.Lange K.Lapidus T.Liu L.Lopes M.Lorenz L.Maier A.Mangiarotti J.Markert V.Metag B.Michalska J.Michel D.Mishra E.Moriniere J.Mousa C.Muentz L.Naumann J.Otwinowski Y.C.Pachmayer M.Palka Y.Parpottas V.Pechenov O.Pechenova T.PerezCavalcanti J.Pietraszko W.Przygoda B.Ramstein A.Reshetin M.Roy-Stephan A.Rustamov A.Sadovsky B.Sailer P.Salabura A.Schmah E.Schwab Yu.G.Sobolev S.Spataro B.Spruck H.Stroebele J.Stroth C.Sturm M.Sudol A.Tarantola K.Teilab P.Tlusty M.Traxler R.Trebac H.Tsertos V.Wagner M.Weber M.Wisniowski T.Wojcik J.Wuestenfel S.Yurevich Y.V.Zanevsky P.Zhou P.Zumbruch

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classification ⚛️ nucl-ex

keywords decaymesonsagevbeamcomingdistributionsenergiesenergy

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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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Phi decay: a relevant source for K- production at SIS energies?

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