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NSR database version of April 11, 2024.

Search: Author = H.Takemoto

Found 18 matches.

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2023MY04      Phys.Rev. C 107, 064308 (2023)

T.Myo, H.Takemoto

Resonances and scattering in microscopic cluster models with the complex-scaled generator coordinate method

NUCLEAR STRUCTURE 8Be; calculated energy eigenvalues (0+, 2+, 4+ and 6+) for full and asymptotic Hamiltonians, J, π, resonance parameters, resonance decay width, nuclear level density. Complex scaling for Bloch-Brink (BB) α cluster model combined with the generator coordinate method (GCM). Comparison to experimental data.

NUCLEAR REACTIONS 4He(α, α), E(cm)<50 MeV; calculated phase shifts of the α-α scattering (0+, 2+, 4+ and 6+).

doi: 10.1103/PhysRevC.107.064308
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2023MY05      Phys.Rev. C 108, 064314 (2023)

T.Myo, M.Lyu, Q.Zhao, M.Isaka, N.Wan, H.Takemoto, H.Horiuchi

Variation of multi-Slater determinants in antisymmetrized molecular dynamics and its application to 10Be with various clustering

doi: 10.1103/PhysRevC.108.064314
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2023TA08      Phys.Rev. C 107, 044304 (2023)

H.Takemoto, T.Myo, H.Horiuchi, H.Toki, M.Isaka, M.Lyu, Q.Zhao, N.Wan

Appearance of the Hoyle state and its breathing mode in 12C despite strong short-range repulsion of the nucleon-nucleon potential

NUCLEAR STRUCTURE 8Be; calculated trajectories of the eigenstates of 0+ and 2+, energy and rms radius of the ground state. 12C; calculated levels, J, π, rms radii and energies of the monopole transition of the nine lowest eigenstates, monopole transition matrix elements, trajectories of the eigenstates of 0+. Calculations using 3α cluster model (Bloch–Brink wave function) using the AV4P potential, which has a strong repulsive core. Comparison to experimental data and other theoretical calculations.

doi: 10.1103/PhysRevC.107.044304
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2022IS04      Phys.Rev. C 105, 064314 (2022)

C.Ishizuka, H.Takemoto, Y.Chiba, A.Ono, N.Itagaki

Role of tensor interaction as salvation of cluster structure in 44Ti

NUCLEAR STRUCTURE 44Ti; calculated energy curves and rms matter radius for the 0+ state as a function of the distance between 4He and 40Ca using antisymmetrized quasicluster model (AQCM) and iSMT model, with tensor interaction; discussed competition of spin-orbit and tensor effects in the medium-heavy region nuclei. Comparison with theoretical predictions of Brink Model, and with experimental data. Relevance to ongoing experimental projects to investigate knockout α clusters from medium-heavy nuclei.

doi: 10.1103/PhysRevC.105.064314
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2022IS08      Phys.Rev. C 106, 044310 (2022)

M.Isaka, Q.Zhao, T.Myo, M.Lyu, H.Toki, H.Horiuchi, H.Takemoto, N.Wan

Role of spatially compact nucleon wave packets in an ab initio description of 3H within high-momentum antisymmetrized molecular dynamics

NUCLEAR STRUCTURE 3H; calculated total energy, rms radii. Calculations describing the nucleon correlations by utilizing high-momentum antisymmetrized molecular dynamics (HM-AMD) with Argonne V8' potential. Comparison of the results with and without the spinparallel configuration. Comparison to other theoretical calculations.

doi: 10.1103/PhysRevC.106.044310
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2022MY01      Phys.Rev. C 105, 014317 (2022)

T.Myo, M.Lyu, H.Toki, H.Horiuchi, Q.Zhao, M.Isaka, H.Takemoto, N.Wan

New many-body method using cluster expansion diagrams with tensor-optimized antisymmetrized molecular dynamics

NUCLEAR STRUCTURE 3H, 4He; calculated total energy and Hamiltonian components of the kinetic energy, central force, and tensor force using a new variational method of tensor optimized antisymmetrized molecular dynamics (New-TOAMD) with AV6' potential. Comparison with other theoretical calculations such as TOAMD, Green's function Monte Carlo (GFMC) and Faddeev-Yakubovsky (FY).

doi: 10.1103/PhysRevC.105.014317
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2022WA32      Phys.Rev. C 106, 034308 (2022)

N.Wan, T.Myo, H.Takemoto, H.Toki, C.Xu, H.Horiuchi, M.Isaka, M.Lyu, Q.Zhao

Finite particle-number description of symmetric nuclear matter with spin excitations of high-momentum pairs induced by the tensor force

doi: 10.1103/PhysRevC.106.034308
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2021ZH34      Prog.Theor.Exp.Phys. 2021, 063D02 (2021)

Q.Zhao, M.Isaka, T.Myo, M.Lyu, H.Toki, H.Horiuchi, H.Takemoto, N.Wan

Role of the unitary correlation operator on high-momentum antisymmetrized molecular dynamics using the bare NN interaction for 3H and 4He

NUCLEAR STRUCTURE 3H, 4He; calculated binding energies using high-momentum antisymmetrized molecular dynamics (HMAMD) by incorporating the short-range part of the unitary correlation operator method (UCOM) as the variational method.

doi: 10.1093/ptep/ptab058
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2019MY01      Phys.Rev. C 99, 024312 (2019)

T.Myo, H.Takemoto, M.Lyu, N.Wan, C.Xu, H.Toki, H.Horiuchi, T.Yamada, K.Ikeda

Variational calculation of nuclear matter in a finite particle number approach using the unitary correlation operator and high-momentum pair methods

NUCLEAR STRUCTURE A=28, 76, 108, 132, 228, 324, 0-1500; N=14, 38, 54, 66, 114, 162, 0-800; calculated numbers of 2p2h configurations, total, kinetic, and potential energy per particle in symmetric nuclear matter and neutron matter using the unitary correlation operator method for central correlations, and two-particle two-hole (2p2h) excitations involving a large relative and high-momentum pair (UCOM+HM). Comparison with Brueckner-Hartree-Fock and auxiliary field diffusion Monte Carlo calculations.

doi: 10.1103/PhysRevC.99.024312
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2004TA07      Phys.Rev. C 69, 035802 (2004)

H.Takemoto, M.Fukushima, S.Chiba, H.Horiuchi, Y.Akaishi, A.Tohsaki

Clustering phenomena in nuclear matter below the saturation density

doi: 10.1103/PhysRevC.69.035802
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2004TA20      Nucl.Phys. A738, 278 (2004)

H.Takemoto, A.Tohsaki

Dimensional dependency of Coulomb energy in an infinite aggregate with periodicity neutralized by a uniform background

doi: 10.1016/j.nuclphysa.2004.04.045
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2002TA32      Prog.Theor.Phys.(Kyoto), Suppl. 146, 632 (2002)

H.Takemoto, M.Fukushima, S.Chiba, H.Horiuchi, Y.Akaishi

Clustering in Neutron-Rich Nuclear Matter in Low-Density Region

doi: 10.1143/PTPS.146.632
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2002TA33      Acta Phys.Hung.N.S. 16, 123 (2002)

H.Takemoto, M.Fukushima, S.Chiba, H.Horiuchi

Clustering Effects of Nucleonic Matter in Low-Density Region

doi: 10.1556/APH.16.2002.1-4.14
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2001TA04      Phys.Rev. C63, 034615 (2001)

H.Takemoto, H.Horiuchi, A.Ono

Incident-Energy Dependence of the Fragmentation Mechanism Reflecting the Cluster Structure of the 19B Nucleus

NUCLEAR REACTIONS 14N(13B, X), (19B, X), E=25-100 MeV/nucleon; calculated fragments charge, momentum distributions from projectile breakup; deduced cluster structure effects. Antisymmetrized molecular dynamics.

NUCLEAR STRUCTURE 10,11,12,13,14,15,16,17,18,19B; calculated binding energies, radii. Antisymmetrized molecular dynamics, comparison with data.

doi: 10.1103/PhysRevC.63.034615
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1999TA09      Prog.Theor.Phys.(Kyoto) 101, 101 (1999)

H.Takemoto, H.Horiuchi, A.Ono

Study of the Clustering Structure of 19B by the Use of Fragmentation Reaction

NUCLEAR STRUCTURE 10,11,12,13,14,15,17,19B; calculated binding energies, radii. Antisymmetrized molecular dynamics.

NUCLEAR REACTIONS 14N(13B, X), (19B, X), E=35 MeV/nucleon; calculated fragments mass, charge distributions; deduced fragmentation mechanism features. Antisymmetrized molecular dynamics.

doi: 10.1143/PTP.101.101
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1998ON01      Nucl.Phys. A630, 148c (1998)

A.Ono, H.Horiuchi, H.Takemoto, R.Wada

Application of Antisymmetrized Molecular Dynamics to Nucleus-Nucleus Collisions

doi: 10.1016/S0375-9474(97)00751-3
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1998TA01      Phys.Rev. C57, 811 (1998)

H.Takemoto, H.Horiuchi, A.Ono

Comparison of Clustering Effects in 12C Fragmentation Among p + 12C, α + 12C, and 14N + 12C Reactions: Excitation of α-cluster degrees of freedom in nuclear collisions

NUCLEAR REACTIONS 12C(p, X), E=26, 55, 100 MeV; 12C(α, X), E=22.5, 35 MeV/nucleon; 12C(14N, X), E=35, 55 MeV/nucleon; analyzed fragments mass distributions; deduced fragmentation α-cluster related features. Antisymmetrized molecular dynamics calculations.

doi: 10.1103/PhysRevC.57.811
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1996TA06      Phys.Rev. C54, 266 (1996)

H.Takemoto, H.Horiuchi, A.Engel, A.Ono

4He Fragments from the 14N + 12C Collision at 35 MeV/nucleon and Clustering in Colliding Nuclei

NUCLEAR REACTIONS 14N(12C, X), E=35 MeV/nucleon; analyzed σ(θ); deduced α-fragment production predominance. Clustering in colliding nuclei.

doi: 10.1103/PhysRevC.54.266
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