Speaker
Mifuyu Ukai
(KEK IPNS )
Description
$s$-shell to $sd$-shell hypernuclear gamma-ray spectroscopies were carried out at KEK-PS, BNL-AGS and J-PARC using germanium detector arrays as the series of Hyperball project. These precise measurements of hypernuclear level structures gave various information on the $\Lambda$N interaction. In particular, the result from the gamma-ray spectroscopy of $^4_\Lambda$He ($1^+ \to 0^+$) M1 transition (J-PARC E13) confirmed the existence of the charge symmetry breaking in $\Lambda$N interaction and its spin dependence. In this talk, a recent summary of the hypernuclear gamma-ray spectroscopy will be presented.In addition, prospects at future J-PARC Experimental Facility will be introduced.
Author
Mifuyu Ukai
(KEK IPNS )
