Speaker
Takeshi O Yamamoto
(JAEA)
Description
X-ray spectroscopy of hadronic atoms is a strong measure
to determine the strong interaction between the hadron and
nuclei. At J-PARC, we have conducted two experiments on
exotic atoms with doubly strange hyperon, $\Xi^-$, aiming at
the world-first detection of the X rays. One is performed
as a byproduct of J-PARC E07 experiment (search for double
hypernuclei with hybrid emulsion technique) where $\Xi^-$
is stopped on the emulsion. The other is a dedicated experiement
for the detection of $\Xi^-$-Fe atom X rays (J-PARC E03).
We will show the result of E07 and the status of the ongoing
analysis for E03. We also discuss future prospects of
$\Xi$-atomic X-ray spectroscopy.
