NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = M.Isaka Found 27 matches. 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 ^{10}Be with various clustering
doi: 10.1103/PhysRevC.108.064314
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 ^{12}C despite strong short-range repulsion of the nucleon-nucleon potential NUCLEAR STRUCTURE ^{8}Be; calculated trajectories of the eigenstates of 0^{+} and 2^{+}, energy and rms radius of the ground state. ^{12}C; 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 (Blochâ€“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
2022HI11 Phys.Rev. C 106, 064318 (2022) E.Hiyama, M.Isaka, T.Doi, T.Hatsuda Probing the ΞN interaction through inversion of spin-doublets in ΞNαα nuclei NUCLEAR STRUCTURE ^{5}He, ^{9}Be; calculated energy levels for ΞNα and ΞΝαα hypernuclei, phase shifts, density distributions of α, Ξ and the valence nucleon N. Found evidences of spin doublet bound state in ΞNαα, while pointed that it's unlikely that ΞNα has bound states. Calculations using Gaussian expansion method (GEM) for three-and four-body cluster models and the ΞN potential obtained from lattice QCD.
doi: 10.1103/PhysRevC.106.064318
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 ^{3}H within high-momentum antisymmetrized molecular dynamics NUCLEAR STRUCTURE ^{3}H; 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
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 ^{3}H, ^{4}He; 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
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
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 ^{3}H and ^{4}He NUCLEAR STRUCTURE ^{3}H, ^{4}He; 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
2020IS02 Phys.Rev. C 101, 024301 (2020) Low-lying level structure of Λ hypernuclei and spin dependence of the ΛN interaction with antisymmetrized molecular dynamics NUCLEAR STRUCTURE ^{6,8}Li, ^{8,9}Be, ^{9,10}B, ^{12,13}C, ^{14}N, ^{15}O; calculated levels, J, π of core nuclei of hypernuclei. ^{4}He, ^{7,9}Li, ^{9,10}Be, ^{10,11}B, ^{12,13}C, ^{15}N, ^{16}O; calculated levels, J, π, binding energies, spin-spin and spin-orbit splittings of the p-shell hypernuclei within the framework of Hyper-antisymmetrized molecular dynamics (HyperAMD) with the ΛN G-matrix interaction derived from the baryon-baryon interaction, extended soft core (ESC) model. Comparison with experimental data.
doi: 10.1103/PhysRevC.101.024301
2019KA31 Prog.Theor.Exp.Phys. 2019, 073D01 (2019) Y.Kanada-En'yo, M.Isaka, T.Motoba Energy spectra in p-shell Λ hypernuclei and ^{19}_{Λ}F and spin-dependent ΛN interactions NUCLEAR STRUCTURE ^{19}F; analyzed available data; calculated hypernuclei energies, J, π.
doi: 10.1093/ptep/ptz054
2019ZH14 Phys.Rev. C 99, 034311 (2019) Q.Zhao, M.Lyu, Z.Ren, T.Myo, H.Toki, K.Ikeda, H.Horiuchi, M.Isaka, T.Yamada Contact representation of short-range correlation in light nuclei studied by the high-momentum antisymmetrized molecular dynamics NUCLEAR STRUCTURE ^{3}H; calculated total energy and Hamiltonian components of the total energy using high-momentum antisymmetrized molecular dynamics (HMAMD) with AV4' central potential; deduced a contact representation of high momentum components of short-range correlation between nucleons. Comparison with authors' previous theoretical approaches.
doi: 10.1103/PhysRevC.99.034311
2018LY08 Phys.Rev. C 98, 064002 (2018) M.Lyu, T.Myo, M.Isaka, H.Toki, K.Ikeda, H.Horiuchi, T.Suhara, T.Yamada Tensor-optimized high-momentum antisymmetrized molecular dynamics with a bare interaction, and its application to the ^{4}He nucleus NUCLEAR STRUCTURE ^{3}H, ^{4}He; calculated nucleon-nucleon correlations, total energy, Hamiltonian components, rms radius of ^{4}He, and energy convergence of ^{3}H, and ^{4}He using tensor-optimized high-momentum antisymmetrized molecular dynamics (TO-HMAMD) framework. Comparison with other AMD-based theoretical calculations.
doi: 10.1103/PhysRevC.98.064002
2017FU10 Phys.Lett. B 773, 336 (2017) Y.Funaki, M.Isaka, E.Hiyama, T.Yamada, K.Ikeda Multi-cluster dynamics in ^{13}_{Λ}C and analogy to clustering in ^{12}C NUCLEAR STRUCTURE ^{12,13}C; calculated hypernuclei level energies, J, π, rms radii, parameters. Comparison with available data.
doi: 10.1016/j.physletb.2017.08.048
2017IS05 Phys.Rev. C 95, 044308 (2017) M.Isaka, Y.Yamamoto, Th.A.Rijken Effects of a hyperonic many-body force on B_{Λ} values of hypernuclei NUCLEAR STRUCTURE ^{9}Li, ^{9,10}Be, ^{9,10,11,12}B, ^{12,13,14}C, ^{15}N, ^{16,19}O, ^{21}Ne, ^{25,27}Mg, ^{28}Si, ^{32}S, ^{40,48}K, ^{40,41}Ca, ^{51}V, ^{59}Fe; calculated mass dependence of binding energies of hypernuclei by adding strongly repulsive many-body effects (MBE) to the strongly repulsive multi-Pomeron exchange potential (MPP). Equation of state (EoS) of hyperon-mixed neutron-star matter. Antisymmetrized molecular dynamics for hypernuclei (HyperAMD) framework using ΛN G-matrix interactions from ESC14 and ESC12.
doi: 10.1103/PhysRevC.95.044308
2016IS11 Phys.Rev. C 94, 044310 (2016) M.Isaka, Y.Yamamoto, Th.A.Rijken Competing effects of nuclear deformation and density dependence of the ΛN interaction in B_{Λ} values of hypernuclei NUCLEAR STRUCTURE ^{9}Li, ^{9,10}Be, ^{9,10,11,12}B, ^{12,13,14}C, ^{15}N, ^{16,19}O, ^{21}Ne, ^{25,27}Mg, ^{28}Si, ^{32}S, ^{40,48}K, ^{40,41}Ca, ^{51}V, ^{59}Fe; calculated binding energies and quadrupole deformation parameters for hypernuclei, effect of deformation. Microscopic calculations based on baryon-baryon interaction extended soft core (ESC) model including many-body effects, and using G-matrix interaction. Comparison with experimental binding energies for hypernuclei.
doi: 10.1103/PhysRevC.94.044310
2015HI04 Phys.Rev. C 91, 054316 (2015) E.Hiyama, M.Isaka, M.Kamimura, T.Myo, T.Motoba Resonant states of the neutron-rich Λ hypernucleus ^{7}_{Λ}He NUCLEAR STRUCTURE ^{6}He; calculated levels, J, π, widths. ^{7}He; calculated levels, J, π, widths of hypernucleus in the framework of α+Λ+n+n four-body cluster model. Comparison with experimental data.
doi: 10.1103/PhysRevC.91.054316
2015HO01 Phys.Rev. C 91, 014314 (2015) Parity reversal of ^{12}_{Λ}Be NUCLEAR STRUCTURE ^{11,12}Be; calculated levels, J, π, matter and proton density distributions, binding and excitation energies, matter quadrupole deformation β, and root-mean-square radii for the bandhead states in ^{11}Be and hypernucleus ^{12}Be. Calculations used extended version of antisymmetrized molecular dynamics (AMD) for hypernuclei. Comparison with available experimental results.
doi: 10.1103/PhysRevC.91.014314
2015IS10 Prog.Theor.Exp.Phys. 2015, 103D02 (2015) M.Isaka, M.Kimura, E.Hiyama, H.Sagawa Superdeformation of Ar hypernuclei NUCLEAR STRUCTURE ^{37,39,41}Ar; calculated separation energies of the ground and superdeformed (SD) states in hypernuclei. Framework of antisymmetrized molecular dynamics (AMD).
doi: 10.1093/ptep/ptv138
2015IS11 Phys.Rev. C 92, 044326 (2015) Impurity effects of the Λ particle on the 2α cluster states of ^{9}Be and ^{10}Be NUCLEAR STRUCTURE ^{9,10,11}Be; calculated levels, J, π, matter quadrupole deformation, nuclear and proton density distributions, proton, neutron and matter rms radii, binding energies, B(E2), 2α cluster structures for ^{9,10}Be normal nuclei and ^{10,11}Be hypernuclei. Antisymmetrized molecular dynamics for hypernuclei (HyperAMD model). Comparison with available experimental data.
doi: 10.1103/PhysRevC.92.044326
2014IS02 Phys.Rev. C 89, 024310 (2014) M.Isaka, K.Fukukawa, M.Kimura, E.Hiyama, H.Sagawa, Y.Yamamoto Superdeformed Λ hypernuclei with antisymmetrized molecular dynamics NUCLEAR STRUCTURE ^{41}Ca, ^{46,48}Sc; calculated levels, J, π, deformation parameters, B(E2), Λ-N interaction strength, Λ-separation, rms radii, intrinsic density distributions, normal and superdeformed bands, electric quadrupole moments for hypernuclei. ^{40}Ca, ^{45,47}Sc; calculated levels, J, π, normal and superdeformed bands, intrinsic density distributions. Deformed basis antisymmetrized molecular dynamics (AMD) model with the generator coordinate method (GCM). Comparison with experimental data.
doi: 10.1103/PhysRevC.89.024310
2013IS03 Phys.Rev. C 87, 021304 (2013) M.Isaka, M.Kimura, A.Dote, A.Ohnishi Splitting of the p orbit in triaxially deformed _{Λ}^{25}MG NUCLEAR STRUCTURE ^{25}Mg; calculated levels, J, π, rotational bands, single-particle energy contours in β-γ plane, Intraband B(E2) for hypernucleus relative to ^{24}Mg nucleus. Hyper-antisymmetrized molecular dynamics calculations.
doi: 10.1103/PhysRevC.87.021304
2013IS11 Nucl.Phys. A914, 189c (2013) M.Isaka, M.Kimura, A.Dote, A.Ohnishi Excited states with Λ hyperon in p-orbit in ^{25}_{Λ}Mg NUCLEAR STRUCTURE ^{25}Mg; calculated Λ hypernucleus levels, J, π, bands, deformation using antisymmetrized molecular dynamics.
doi: 10.1016/j.nuclphysa.2013.01.027
2012IS02 Phys.Rev. C 85, 034303 (2012) M.Isaka, H.Homma, M.Kimura, A.Dote, A.Ohnishi Modification of triaxial deformation and change of spectrum in Λ ^{25}Mg caused by the Λ hyperon NUCLEAR STRUCTURE ^{25}Mg; calculated levels, J, π, bands, density distribution, and β-γ surface contours, deformation parameters, B(E2) values of hypernucleus. Antisymmetrized molecular dynamics for hypernucleus (HyperAMD) and Generator coordinate method (GCM). ^{24}Mg; calculated levels, J, π, bands, density distribution, and β-γ surface contours, deformation parameters, B(E2) values. Antisymmetrized molecular dynamics, and Generator coordinate method (GCM). Comparison with experimental data.
doi: 10.1103/PhysRevC.85.034303
2012KI05 Prog.Theor.Phys.(Kyoto) 127, 287 (2012) Excitation and Structure Change of ^{24}Mg. I - Triaxial Deformed Mean Field in Low-Lying States - NUCLEAR STRUCTURE ^{24}Mg; calculated level energies, J, π, γ-deformation, bands. Antisymmetrized molecular dynamics with Cogny effective interaction.
doi: 10.1143/PTP.127.287
2011IS02 Phys.Rev. C 83, 044323 (2011) M.Isaka, M.Kimura, A.Dote, A.Ohnishi Deformation of hypernuclei studied with antisymmetrized molecular dynamics NUCLEAR STRUCTURE ^{8,9}Be, ^{12,13}C, ^{19,20,21}Ne; calculated energy curves, total energies and binding energies, rms radii as function of β and γ deformation parameters, and density plots for hypernuclei using antisymmetrized molecular dynamics (HyperAMD) for structure of p-sd shell hypernuclei. Possibility of parity inversion in ^{20}Ne hypernucleus.
doi: 10.1103/PhysRevC.83.044323
2011IS03 Phys.Rev. C 83, 054304 (2011) M.Isaka, M.Kimura, A.Dote, A.Ohnishi Shell and cluster states of ^{21}_{Λ}Ne studied with antisymmetrized molecular dynamics NUCLEAR STRUCTURE ^{21}Ne; calculated levels, J, π, K=0+ and 0- bands, B(E2), rms radii, density distributions of hypernucleus. Antisymmetrized molecular dynamics (AMD) for hypernuclei. Comparison with AMD calculations for levels, J, π, bands in ^{20}Ne. Cluster structure.
doi: 10.1103/PhysRevC.83.054304
2011IS07 Int.J.Mod.Phys. E20, 859 (2011) M.Isaka, H.Honma, M.Kimura, A.Dote, K.Ohnishi Impurity effects in ^{12}_{Λ}Be and ^{21}_{Λ}Ne hypernuclei NUCLEAR STRUCTURE ^{11,12}Be, ^{20,21}Ne; calculated energies, J, π , B(E2) for low-lying states in hypernuclei, α+^{16}O cluster bands, rms radii.
doi: 10.1142/S0218301311018848
2010MA71 Nucl.Phys. A835, 366c (2010) H.Matsumiya, K.Tsubakihara, M.Isaka, M.Kimura, A.Dote, A.Ohnishi Spin-dependence of the Ξ-N interaction and the Ξ hypernuclear production spectrum NUCLEAR STRUCTURE ^{12}Be; calculated Ξ hypernucleus levels, J, π using different interactions. ^{12}C; calculated Λ hypernucleus quadrupole deformation energy.
doi: 10.1016/j.nuclphysa.2010.01.220
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