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Utsuno, Yutaka; Shimizu, Noritaka*; Abe, Takashi*; Otsuka, Takaharu*
no journal, ,
no abstracts in English
Hashimoto, Shintaro; Ogata, Kazuyuki*; Yahiro, Masanobu*
no journal, ,
no abstracts in English
Ogata, Kazuyuki*; Hashimoto, Shintaro; Chiba, Satoshi
no journal, ,
no abstracts in English
Maruyama, Toshiki; Tatsumi, Toshitaka*
no journal, ,
no abstracts in English
Asai, Masato
no journal, ,
-ray spectroscopy is very powerful to study nuclear structure of unstable nuclei located far away from the stable nuclei. However, spectroscopic studies of superheavy nuclei are extremely difficult because their production rates are extremely low. Thus, experimental techniques applicable to the superheavy nuclei and nuclei to be able to studied experimentally are strictly restricted. Under such restricted situation, I discuss which techniques are applicable, which nuclei can be measured, and what information can be obtained to clarify nuclear structure of superheavy nuclei.
Okamoto, Minoru*; Maruyama, Toshiki; Yabana, Kazuhiro*; Tatsumi, Toshitaka*
no journal, ,
no abstracts in English
on the multi kaonic nucleiMuto, Takumi*; Maruyama, Toshiki; Tatsumi, Toshitaka*
no journal, ,
no abstracts in English
Imai, Kenichi
no journal, ,
The nucleon structure and nuclear force have been studied for a long time. In recent decades, spin and strangeness are key words in these fields. The spin structure of nucleon has been studied with polarized lepton and proton beams and quark and gluon spin structure functions have been measured. The hyperon nucleon interactions have been studied by the spectroscopy of hypernuclei. After a brief review of major results of these studies, we describe important problems to be solved by future experiments.
Sato, Susumu; Sako, Hiroyuki; Imai, Kenichi; Sugimura, Hitoshi; Adachi, Satoshi; Niiyama, Masayuki; Ozawa, Kyoichiro
no journal, ,
In the experimental study of hadron properties at J-PARC, especially for the study of hyperon (including production and decay properties), it is essential to measure decayed particles around the experimental target with larger solid angle. In this report, status of development of the 3-dimensional tracking detector is presented.
-ray transition probability on 
Ta and its effects to supernova neutrino process and s-processHayakawa, Takehito; Chiba, Satoshi; Kajino, Toshitaka*; Mathews, G. J.*; Mohr, P.*
no journal, ,
We have discuss nuclear structure of Ta, excited states and transition probabilities, and its effects to supernova neutrino nucleosynthesis and slow neutron capture reaction processes. The ground state of Ta beta decays with a half-life of about 8 hours, whereas an isomer at 77 keV is meta-stable state. In hot temperature environments in stars, the ground state and the isomer are linked through highly excited states by (, ') reactions.