52 citations · 311 across the 26 of their papers we have counts for
26 papers
Mass radius and D-term of atomic nuclei in relativistic mean field theory
Yoshitaka Hatta, Tomohiro Oishi, Makoto Oka
Based on relativistic mean field theory for atomic nuclei, we compute the mass radius and other radii associated with the energy momentum tensor for dozens of spin-0 nuclei across…
Triplet-odd pairing in finite nuclear systems: Even-even singly closed nuclei
Nobuo Hinohara, Tomohiro Oishi, Kenichi Yoshida
Background: The appearance of the pairing condensate is an essential feature of many-fermion systems. There are two possible types of pairing: spin-singlet and spin-triplet. Howeve…
Instruction of my personal computing library
Tomohiro Oishi
This document is prepared to introduce and explain how to use the computing library composed by T. Oishi. The library-01 TOSPEM solves, for the spherical nucleus, (i) the Schroedin…
Diproton correlation and two-proton emission from proton-rich nuclei
Tomohiro Oishi
Open-print version of dissertation thesis. This thesis focuses on the relation between the diproton correlation and the two-proton emission with quantum entanglement. For this purp…
Time-dependent Dirac equation applied to one-proton radioactive emission
Tomohiro Oishi
Relativistic energy-density functional (REDF) theory has been developed and utilized for self-consistent meanfield calculations of atomic nuclei. The proton-emitting radioactivity…
Comparative study on charge radii and their kinks at magic numbers
Tomoya Naito, Tomohiro Oishi, Hiroyuki Sagawa +1
Isotope dependences of charge radii, i.e., isotope shifts, calculated by the Skyrme Hartree-Fock, the relativistic mean-field, and the relativistic Hartree-Fock calculations are co…
Magnetic quadrupole transitions in the relativistic energy density functional theory
G. Kružić, T. Oishi, N. Paar
Background: Magnetic quadrupole (M2) excitation represents a fundamental feature in atomic nucleus associated to nuclear magnetism induced by spin and orbital transition operator.…
Symmetry breaking of Gamow-Teller and magnetic-dipole transitions and its restoration in calcium isotopes
Tomohiro Oishi, Ante Ravlic, Nils Paar
Nuclear magnetic-dipole (M1) and Gamow-Teller (GT) transitions provide insight into the spin-isospin properties of atomic nuclei. By considering them as unified spin-isospin transi…
The evolution of magnetic dipole strength in Sn isotope chain and quenching of nucleon g factors
G. Kruzic, T. Oishi, N. Paar
The evolution of electromagnetic transitions along isotope chains is of particular importance for the nuclear structure and dynamics, as well as for the r-process nucleosynthesis.…
Discerning nuclear pairing properties from magnetic dipole excitation
Tomohiro Oishi, Goran Kruzic, Nils Paar
Pairing correlation of Cooper pair is a fundamental property of multi-fermion interacting systems. For nucleons, two modes of the Cooper-pair coupling may exist, namely of $S_{12}=…
Magnetic dipole excitations based on the relativistic nuclear energy density functional
G. Kruzic, T. Oishi, D. Vale +1
Magnetic dipole (M1) excitations build not only a fundamental mode of nucleonic transitions, but they are also relevant for nuclear astrophysics applications. We have established a…
An overview of the scientific contribution of Andrea Vitturi to Nuclear Physics (being an account of the recent TNP19 meeting held in Padova)
L. Fortunato, C. E. Alonso, J. M. Arias +8
We give an account of the main achievements of the scientific career of Andrea Vitturi so far, that have recently been discussed during the workshop "Theoretical Nuclear Physics in…
Role of residual interaction in the relativistic description of M1 excitation
Tomohiro Oishi, Goran Kruzic, Nils Paar
Magnetic dipole (M1) excitation is the leading mode of multi-nucleon excitations induced by the magnetic field, and is a phenomenon of the spin-orbit (SO) splitting and residual in…
Relativistic energy-density functional approach to magnetic-dipole excitation and its sum rule
Tomohiro Oishi, Goran Kruzic, Nils Paar
Magnetic-dipole (M1) excitations of O and Ca nuclei are investigated within a relativistic nuclear energy density functional framework. In our last work \cite{2019OP}…
Magnetic dipole excitation and its sum rule in nuclei with two valence nucleons
Tomohiro Oishi, Nils Paar
Background: Magnetic dipole (M1) excitation is the leading mode of nuclear excitation by the magnetic field, which couples unnatural-parity states. Since the M1 excitation occurs m…
Supplemental note for "Two-fermion emission from spin-singlet and triplet resonances in one dimension"
Tomohiro Oishi
Time-dependent calculation has been a suitable method to investigate the quantum dynamical processes. In Ref. [1] = [T. Oishi et al., J. of Phys. G 45, 105101 (2018)], we applied t…
Time-dependent method for many-body problems and its application to nuclear resonant systems
Tomohiro Oishi, Lorenzo Fortunato
The decay process of the schematic one-dimensional three-body system is considered. A time-dependent approach is used in combination with a one-dimensional three-body model, which…
One-proton emission from the Li hypernucleus
Tomohiro Oishi
One-proton (1p) radioactive emission under the influence of the -hyperon inclusion is discussed. I investigate the hyper-1p emitter, Li, with a time-dependent three-body…
Correlation Energy of Proton-Neutron Subsystem in Valence Orbit
Tomohiro Oishi, Lorenzo Fortunato
Deuteron correlation energy (DCE) of the valence proton-neutron subsystem is evaluated by utilizing a simple three-body model. We focus on the Li and F nuclei assuming t…
Diagonalization scheme for the many-body Schroedinger equation
Lorenzo Fortunato, Tomohiro Oishi
A new convenient method to diagonalize the non-relativistic many-body Schroedinger equation with two-body central potentials is derived. It combines kinematic rotations (democracy…
Dependence of two-proton radioactivity on nuclear pairing models
Tomohiro Oishi, Markus Kortelainen, Alessandro Pastore
Sensitivity of two-proton emitting decay to nuclear pairing correlation is discussed within a time-dependent three-body model. We focus on the Be nucleus assuming co…
Finite amplitude method applied to giant dipole resonance in heavy rare-earth nuclei
Tomohiro Oishi, Markus Kortelainen, Nobuo Hinohara
Background: The quasiparticle random phase approximation (QRPA), within the framework of the nuclear density functional theory (DFT), has been a standard tool to access the collect…
Role of diproton correlation in two-proton emission decay of the Be nucleus
Tomohiro Oishi, Kouichi Hagino, Hiroyuki Sagawa
We discuss a role of diproton correlation in two-proton emission from the ground state of a proton-rich nucleus, Be. Assuming the three-body structure of configurati…
Time-dependent approach to many-particle tunneling in one-dimension
Takahito Maruyama, Tomohiro Oishi, Kouichi Hagino +1
Employing the time-dependent approach, we investigate a quantum tunneling decay of many-particle systems. We apply it to a one-dimensional three-body problem with a heavy core nucl…