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HK: Fachverband Physik der Hadronen und Kerne

HK 49: Poster

HK 49.6: Poster

Thursday, March 15, 2007, 16:00–17:00, P

Hypernuclear physics with KaoS at MAMI-C — •Patrick Achenbach for the A1 collaboration — Institut für Kernphysik, Johannes Gutenberg-Universität, D-55099 Mainz, Germany.

The KaoS spectrometer at the Mainz Microtron MAMI is a dedicated spectrometer for kaon and hypernuclei electroproduction. For the hypernuclear research programme KaoS will be used for the first time as a double arm spectrometer. Further, it is being equipped with new read-out electronics, a completely new electron focal plane detector package consisting of scintillating fibres, and a new trigger system based on trajectory and momentum matching between both arms.

The (e,e′,K⁺) reaction produces neutron-rich Λ hypernuclei converting a proton to a Λ hyperon and transfers a large recoil momentum to a hypernucleus. Thus, high-spin hypernuclear states can be studied. In addition, the reaction has the unique characteristic of providing large amplitudes for the population of spin-flip hypernuclear states with unnatural parities.