München 2006 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 21: Postersitzung
HK 21.38: Poster
Dienstag, 21. März 2006, 15:30–17:00, P
Proton induced reactions at Tp=3.5GeV at FOPI for a Kaonic Nuclear Cluster Search — •Laura Fabbietti1, P. Kienle2, R. Krücken1, K. Suzuki1, T. Yamazaki3, and J. Zmeskal2 — 1Technische Universität München — 2Stefan Meyer Institut — 3University of Tokyo
An experimental signature of the exotic bound states containing a K (ppK, ppK, ppK and ppnK ) predicted by Akaishi and Yamazaki [1] has been observed by two different collaborations, using stopped K beams [2],[3]. These states have been found to be narrow discrete bound systems with a binding energy of about 100 MeV. The formation of such clusters can be investigated also using proton induced reactions or looking for residues in heavy ion collisions. Among others, a dedicated experiment has been carried out at GSI using the FOPI spectrometer, to study the production of such exotic systems for the reactions p+CH2 and p+CD2 at TKIN = 3.5GeV. We report on the preliminary results achieved in this measurement using the missing mass and invariant mass methods.
[1] Y. Akahishi and T. Yamazaki, Phys. Rev C 65(2002) 044005.
[2] T. Suzuki et al., Phys. Lett B 597 (2004) 263.
[3] M. Agnello et al., Phys. Rev Lett. 94 (2005) 212303.