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2009-02-20
Phi decay: a relevant source for K- production at SIS energies?
The HADES CollaborationG. AgakishievA. BalandaB. BannierR. BassiniD. BelverA. V. BelyaevA. BlancoM. BoehmerJ. L. BoyardP. Braun-MunzingerP. CabanelasE. CastroS. ChernenkoT. ChristM. DestefanisJ. DiazF. DohrmannA. DybczakT. EberlW. EnghardtL. FabbiettiO. V. FateevP. FinocchiaroP. FonteJ. FrieseI. FroehlichT. GalatyukJ. A. GarzonR. GernhaeuserA. Gil1C. GilardiM. GolubevaD. Gonzalez-DiazF. GuberM. HeilmannT. HeinzT. HenninoR. HolzmannA. IerusalimovI. IoriA. IvashkinM. JurkovicB. KaempferK. KanakiT. KaravichevaD. KirschnerI. KoenigW. KoenigB. W. KolbR. KotteF. KrizekR. KrueckenW. KuehnA. KuglerA. KurepinS. LangJ. S. LangeK. LapidusT. LiuL. LopesM. LorenzL. MaierA. MangiarottiJ. MarkertV. MetagB. MichalskaJ. MichelD. MishraE. MoriniereJ. MousaC. MuentzL. NaumannJ. OtwinowskiY. C. PachmayerM. PalkaY. ParpottasV. PechenovO. PechenovaT. PerezCavalcantiJ. PietraszkoW. PrzygodaB. RamsteinA. ReshetinM. Roy-StephanA. RustamovA. SadovskyB. SailerP. SalaburaA. SchmahE. SchwabYu. G. SobolevS. SpataroB. SpruckH. StroebeleJ. StrothC. SturmM. SudolA. TarantolaK. TeilabP. TlustyM. TraxlerR. TrebacH. TsertosV. WagnerM. WeberM. WisniowskiT. WojcikJ. WuestenfelS. YurevichY. V. ZanevskyP. ZhouP. Zumbruch
文献摘要
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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