Search for ppk- with proton induced reactions at GSI

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Several experiments engaging kaon beams have been carried out to study the existence of deeply bound kaonic state. We proposed an alternative method, which exploits a p + p reaction at 3.5 GeV incoming energy to search for the most elementary of the kaonic states: ppK-. This experiment is planned with the FOPI spectrometer at GSI and a silicon-based trigger system has been developed to increase the detection capability of the existing system for the reaction of interest. Several tests have been performed under realistic beam conditions to test the feasibility of the measurement and the proof of principle of the trigger system. The positive results of such measurements are shown in this contribution together with the expected rates extracted from simulations.

Original languageEnglish
Pages (from-to)2606-2611
Number of pages6
JournalInternational Journal of Modern Physics E
Issue number12
StatePublished - Dec 2010


  • FOPI
  • SIS
  • Strangeness
  • heavy-ions


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