Gamma-Ray Spectroscopy Study of B-11(Lambda) and C-12(Lambda)

In this paper, a preliminary result from the latest bypernuclear gamma-ray spectroscopy experiment (KEK-E566) is presented together with a short discussion. The experiment was performed at the KEK-PS K6 beam line in 2005. In this experiment, the C-12(pi(+), K+)(Lambda)C-12 reaction was employed to populate C-12(Lambda)/B-11(Lambda) hypernuclei. A germanium detector array, Hyperball2, was constructed to detect gamma-rays emitted from the hypernuclei produced. Three hypernuclear gamma-ray peaks were observed and assigned.