T. Moriguchi

Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon

A search for new isotopes using in-flight fission of a 345 MeV/nucleon 238 U beam has been carried out at the RI Beam Factory at the RIKEN Nishina Center. Fission fragments were analyzed and identi...

Identification of New Isotopes 125 Pd and 126 Pd produced by In-flight Fission of 345 MeV/nucleon 238 U: First Results from the RIKEN RI Beam Factory

A search for new isotopes using in-flight fission of a 345 MeV/nucleon 238 U beam has been carried out in the commissioning experiment of the next-generation in-flight radioactive isotope beam separator BigRIPS at the RI Beam Factory at the RIKEN Nishina Center. Two neutron-rich palladium isotopes 125 Pd and 126 Pd were observed for the first time, which demonstrates the great potential of the RIKEN RI beam factory.

Different mechanism of two-proton emission from proton-rich nuclei 23 Al and 22 Mg

Two-proton relative momentum (q(pp)) and opening angle (theta(pp)) distributions from the three-body decay of two excited proton-rich nuclei, namely Al-23 --> p + p + Na-21 and Mg-22 --> p + p + Ne-20, have been measured with the projectile fragment separator (RIPS) at the RIKEN RI Beam Factory. An evident peak at q(pp) similar to 20 MeV/c as well as a peak in theta(pp) around 30 degrees are seen in the two-proton break-up channel from a highly-excited Mg-22. In contrast, such peaks are absent for the Al-23 case. It is concluded that the two-proton emission mechanism of excited Mg-22 is quite different from the Al-23 case, with the former having a favorable diproton emission component at a highly excited state and the latter dominated by the sequential decay process

Proton-proton correlations in distinguishing the two-proton emission mechanism of 23Al and 22Mg

The proton-proton momentum correlation functions (

Nuclear structure of 30 S and its implications for nucleosynthesis in classical novae

C_{pp}(q)

Development of a Time Projection Chamber (TPC) using Gas Electron Multiplier (GEM) for use as an active target

) for kinematically complete decay channels of

Lamb-shift Polarized Ion Source at UTTAC

^{23}

Development Of Secondary Electron Time Detector For Ion Beams

Al

Performance of a Resonant Schottky Pick-up in the Commissioning of Rare-RI Ring

\rightarrow

Spins and parities of astrophysically important {sup 30}S states from {sup 28}Si({sup 3}He, n{gamma}){sup 30}S

p + p +