Mitsuru Tohyama
Kyorin University
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Featured researches published by Mitsuru Tohyama.
Physics Letters B | 2002
Mitsuru Tohyama; A. S. Umar
Abstract The strength functions of quadrupole modes in the unstable oxygen isotopes 22 O and 24 O are calculated using an extended version of the time-dependent Hartree–Fock theory known as the time-dependent density-matrix theory (TDDM). It is found that TDDM gives the lowest quadrupole states which are energetically shifted upward and become significantly collective due to the coupling to two-body configurations. It is pointed out that these features of the lowest quadrupole states are similar to those obtained in the quasi-particle random phase approximation.
Physics Letters B | 2001
Mitsuru Tohyama; A. S. Umar
The strength functions of isovector dipole resonances in the even oxygen isotopes 18∼24 O are calculated by using an extended version of the timedependent Hartree-Fock theory known as the time-dependent density-matrix theory (TDDM). The results are compared with recent experimental data and also with a shell-model calculation. It is found that the observed isotope dependence of low-lying dipole strength is reproduced in TDDM when the strength of the residual interaction is appropriately chosen. It is also found that there is a difference between the TDDM prediction and the shell-model calculation for 24 O.
Physical Review C | 2016
Mitsuru Tohyama; A. S. Umar
To investigate the two-body dissipation effects on the synthesis of superheavy elements, we calculate low-energy collisions of the
Physical Review B | 2016
Peter Schuck; Mitsuru Tohyama
N=50
European Physical Journal A | 2004
Mitsuru Tohyama; P. Schuck
isotones (
Physical Review C | 2012
Mitsuru Tohyama; Takashi Nakatsukasa
^{82}
European Physical Journal A | 1991
Mitsuru Tohyama; P. Schuck; S. J. Wang
Ge,
European Physical Journal A | 2014
Mitsuru Tohyama; Peter Schuck
^{84}
Journal of the Physical Society of Japan | 2009
Mitsuru Tohyama
Se,
European Physical Journal A | 2004
Mitsuru Tohyama; S. Takahara; P. Schuck
^{86}