Mainz 2012 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 16: Hadronenstruktur und -spektroskopie
HK 16.3: Vortrag
Dienstag, 20. März 2012, 17:15–17:30, RW 2
Neutral Kaon Production in p+p and p+93Nb Reactions at 3.5 GeV with HADES* — •Jia-Chii Berger-Chen — TU München, Boltzmannstr. 2, 85748 Garching, Germany
The kaon nucleus interaction is a subject of interest for experimental and theoretical study.
A number of experiments have measured the kaon-nucleon/nucleus potential at normal nuclear density in p+A [1] and π−+A [2] reactions
and in heavy ion collisions [3] all obtaining a slightly repulsive potential. However, the determined strengths of the potential are not
consistent with each other. Therefore we propose to analyse the KS0 production in p+p and p+93Nb
collisions at a kinetic beam energy of 3.5 GeV measured with HADES. The good event statistics of low pt-kaons
(pt < 100 MeV) ensure the sensitivity of our measurements to the nuclear matter effects.
The comparison of the KS0 differential yields may then provide access to the in-medium
kaon nucleus potential at normal nuclear density. We present the data analysis method and preliminary results.
1M. Büscher et al. (ANKE), Eur. Phys. J. A 22, 301-317 (2004).
2M.L. Benabderrahmane et al. (FOPI), PRL 102, 182501 (2009).
3G. Agakishiev et al. (HADES), Phys. Rev. C 82:044907 (2010).
* supported by BMBF and Excellence Cluster “Universe”