NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = M.Yamagami Found 30 matches. 2022YA25 Phys.Rev. C 106, 044316 (2022) Momentum-space structure of dineutrons in Borromean nuclei NUCLEAR STRUCTURE 6He, 11Li, 19B, 22C; calculated ground state properties, S(2n), fraction of the neutron and proton configurations, n-n distance, core-2n distance, matter radius, opening angle between momenta of valence neutrons, 2n density distribution. Three-body model calculation with newly constructed finite-range nn interaction in momentum space (the kSEP interaction). Comparison to experimental data.
doi: 10.1103/PhysRevC.106.044316
2019YA21 Phys.Rev. C 100, 054302 (2019) Pairing effect on Kπ = 0+ quadrupole excitations in neutron-rich Mg isotopes studied by Skyrme quasiparticle random-phase approximation calculations in wave-number space NUCLEAR STRUCTURE 34,36,38,40,42,44Mg; calculated quadrupole deformation, pairing gap, neutron single particle energies, QRPA strength distributions isoscalar transition matrix elements, excitation energies, neutron chemical potential, one-body matrix elements for Kπ=0+ quadrupole excitations using the quasiparticle random-phase approximation (QRPA) method, with the Skyrme energy density functional (EDF) in three-dimensional wave-number space.
doi: 10.1103/PhysRevC.100.054302
2012YA12 Phys.Rev. C 86, 034333 (2012) M.Yamagami, J.Margueron, H.Sagawa, K.Hagino Isoscalar and isovector density dependence of the pairing functional determined from global fitting NUCLEAR STRUCTURE N>8, Z>8; calculated pair-density functional (pair-DF) with isoscalar and isovector density dependences using experimental neutron and proton pairing gaps for even-even nuclides of N, Z>8.
doi: 10.1103/PhysRevC.86.034333
2011NA10 Phys.Rev. C 83, 031302 (2011) Coulombic effect and renormalization in nuclear pairing NUCLEAR STRUCTURE Z=10-26, N=20; Z=14-30, N=28; Z=22-48, N=50; Z=46-72, N=82; Z=64-94, N=126; calculated nuclear pairing energies, even-odd mass differences for even-even neutron-closed shell nuclei using Hartree-Fock-Bogolyubov approach and Gogny-D1S plus Coulomb interaction. Effect of the Coulomb force on the nuclear pairing properties.
doi: 10.1103/PhysRevC.83.031302
2009NA35 Nucl.Phys. A828, 283 (2009) H.Nakada, K.Mizuyama, M.Yamagami, M.Matsuo RPA calculations with Gaussian expansion method NUCLEAR STRUCTURE 40,48,60Ca; calculated excitation energy and transition strength. Comparison of several methods.
doi: 10.1016/j.nuclphysa.2009.07.010
2009OG01 Prog.Theor.Phys.(Kyoto) 121, 357 (2009) H.Ogasawara, K.Yoshida, M.Yamagami, S.Mizutori, K.Matsuyanagi Rotational Frequency Dependence of Octupole Vibrations on Superdeformed States in 40Ca
doi: 10.1143/PTP.121.357
2009YA20 Phys.Rev. C 80, 064301 (2009) M.Yamagami, Y.R.Shimizu, T.Nakatsukasa Optimal pair density functional for the description of nuclei with large neutron excess NUCLEAR STRUCTURE A=118-196; calculated proton and neutron pairing gaps and rms deviations using Hartree-Fock-Bogoliubov (HFB) method for 156 nuclei in the A=118-196 range and with (N-Z)/A<0.25. Optimization of parameters in the pair density-functional (DF) for large neutron excess nuclei. Comparison with experimental data.
doi: 10.1103/PhysRevC.80.064301
2008OG02 Prog.Theor.Phys.(Kyoto) 120, 1169 (2008) H.Ogasawara, K.Yoshida, M.Yamagami, S.Mizutori, K.Matsuyanagi Triaxiality Dependence of Octupole Excitations on Superdeformed States in 44Ti
doi: 10.1143/PTP.120.1169
2008YA08 Phys.Rev. C 77, 034315 (2008) T.Yamaguchi, T.Suzuki, T.Ohnishi, F.Becker, M.Fukuda, H.Geissel, M.Hosoi, R.Janik, K.Kimura, T.Kuboki, S.Mandel, M.Matsuo, G.Munzenberg, S.Nakajima, T.Ohtsubo, A.Ozawa, A.Prochazka, M.Shindo, B.Sitar, P.Strmen, T.Suda, K.Summerer, K.Sugawara, I.Szarka, M.Takechi, A.Takisawa, K.Tanaka, M.Yamagami Nuclear matter radii of neutron-deficient Kr isotopes NUCLEAR REACTIONS C(72Kr, X), (76Kr, X), (80Kr, X), E=1.05 GeV/nucleon; measured interaction cross sections, effective matter radii. 63,64,65,66,67,68Ga, 65,66,67,68,69,70Ge, 67,68,69,70,71,72As, 69,70,71,72,73Se, 72,73,74,75Br, 73,74,75,77,78,79,81,82,83,84,85,86,87,88,89,90Kr; systematics. Comparison with Skyrme-Hartree-Fock-Bogoliubov calculations.
doi: 10.1103/PhysRevC.77.034315
2008YA14 Phys.Rev. C 77, 064319 (2008) Pairing effects for rotational excitations unique to neutron-rich nuclei NUCLEAR STRUCTURE 30,32,34,36,38,40Mg; calculated neutron and proton pairing gaps, neutron moments of inertia, excitation energies of 2+ states. 60,62,64,66,68,70,72,74,76,78Cr; calculated neutron and proton pairing gaps, excitation energies of 2+ states. 40Mg; calculated neutron correlation densities. Hartree-Fock-Bogoliubov model.
doi: 10.1103/PhysRevC.77.064319
2008YO02 Phys.Rev. C 77, 044312 (2008) Low-frequency Kπ = 0+ modes in deformed neutron-rich nuclei: Pairing- and β-vibrational modes of neutrons NUCLEAR STRUCTURE 34,40Mg, 62,64,66,68,70Cr, 64,66,68,70,72Fe; calculated single-particle energies, excitation energies, transition densities. QPRA amplitudes, B(E2), isoscalar quadrupole, monopole pair and quadrupole pair transition strengths for Kπ=0+ states. Quasiparticle random phase approximation, Hartree-Fock-Bogoliubov formalism.
doi: 10.1103/PhysRevC.77.044312
2006HA28 Phys.Rev. C 74, 017310 (2006) K.Hagino, N.W.Lwin, M.Yamagami Deformation parameter for diffuse density NUCLEAR STRUCTURE 24,26,28,30,32,34,36,38,40Mg; calculated deformation and diffuseness parameters.
doi: 10.1103/PhysRevC.74.017310
2006IN01 Nucl.Phys. A768, 61 (2006) T.Inakura, H.Imagawa, Y.Hashimoto, S.Mizutori, M.Yamagami, K.Matsuyanagi Mixed representation RPA calculation for octupole excitations on superdeformed states in the 40Ca and neutron-rich sulfur regions NUCLEAR STRUCTURE 32,36,48,50S, 36Ar, 40Ca, 44Ti; calculated energy, J, octupole transition strengths for low-frequency negative-parity excitations built on superdeformed states. Self-consistent RPA approach, comparison with other models.
doi: 10.1016/j.nuclphysa.2006.01.008
2006YA20 Phys.Scr. T125, 228 (2006) Pairing-induced spatially extended coherence of low-lying vibrational excitations unique in neutron drip line nuclei NUCLEAR STRUCTURE 80,82,84,86,88Ni; calculated transitions B(E2).
doi: 10.1088/0031-8949/2006/T125/064
2006YO07 Nucl.Phys. A779, 99 (2006) K.Yoshida, M.Yamagami, K.Matsuyanagi Pairing and continuum effects on low-frequency quadrupole vibrations in deformed Mg isotopes close to the neutron drip line NUCLEAR STRUCTURE 36,38,40Mg; calculated transition strengths for low-frequency quadrupole vibrational modes. Quasiparticle RPA.
doi: 10.1016/j.nuclphysa.2006.09.003
2006YO09 Phys.Scr. T125, 45 (2006) K.Yoshida, M.Yamagami, K.Matsuyanagi Dynamic pairing effects on low-frequency modes of excitation in deformed Mg isotopes close to the neutron drip line NUCLEAR STRUCTURE 36,38,40Mg; calculated isoscalar quadrupole strength distributions; deduced collective modes, dynamic pairing effects. Deformed quasiparticle RPA.
doi: 10.1088/0031-8949/2006/T125/010
2005IN02 Eur.Phys.J. A 25, Supplement 1, 545 (2005) T.Inakura, H.Imagawa, Y.Hashimoto, M.Yamagami, S.Mizutori, K.Matsuyanagi Soft octupole vibrations on superdeformed states in nuclei around 40Ca suggested by Skyrme-HF and self-consistent RPA calculations NUCLEAR STRUCTURE 32S, 36Ar, 40Ca, 44Ti; calculated energy, J for low-frequency negative-parity excitations built on superdeformed states. Self-consistent RPA approach.
doi: 10.1140/epjad/i2005-06-111-4
2005YA27 Eur.Phys.J. A 25, Supplement 1, 569 (2005) Collective excitations induced by pairing anti-halo effect NUCLEAR STRUCTURE 86Ni; calculated spatial distribution of neutron two-quasiparticle states. 80,82,84,86,88Ni; calculated transitions B(E2); deduced role of pairing correlations. Quasiparticle RPA.
doi: 10.1140/epjad/i2005-06-130-1
2005YA28 Eur.Phys.J. A 25, Supplement 1, 573 (2005) Pairing effects on the collectivity of quadrupole states around 32Mg NUCLEAR STRUCTURE 30Ne, 32Mg, 34Si, 36S, 38Ar, 40Ca; calculated neutron pair gaps, level energies, transitions B(E2). HFB plus quasiparticle RPA.
doi: 10.1140/epjad/i2005-06-095-y
2005YA31 Phys.Rev. C 72, 064308 (2005) Continuum effects for many-body correlations in nuclei close to the neutron drip line NUCLEAR STRUCTURE 80,82,84,86,88Ni; calculated single-particle energies, radii, B(E2), role of pair correlations.
doi: 10.1103/PhysRevC.72.064308
2005YO03 Prog.Theor.Phys.(Kyoto) 113, 1251 (2005) K.Yoshida, M.Yamagami, K.Matsuyanagi Comparative Study of Octupole Excitations on Superdeformed States in 32S, 36S, 40Ca and 50S NUCLEAR STRUCTURE 32,36,50S, 40Ca; calculated superdeformed band energies, configurations, isoscalar octupole strength. RPA approach, deformed Woods-Saxon potential.
doi: 10.1143/PTP.113.1251
2005YO13 Eur.Phys.J. A 25, Supplement 1, 557 (2005) K.Yoshida, T.Inakura, M.Yamagami, S.Mizutori, K.Matsuyanagi Microscopic structure of negative-parity vibrations built on superdeformed states in sulfur isotopes close to the neutron drip line NUCLEAR STRUCTURE 50S; calculated isoscalar octupole transition strengths, neutron density distributions, superdeformed states features. Woods-Saxon potential, RPA.
doi: 10.1140/epjad/i2005-06-142-9
2004IN01 Int.J.Mod.Phys. E13, 157 (2004) T.Inakura, M.Yamagami, K.Matsuyanagi, S.Mizutori, H.Imagawa, Y.Hashimoto Static and dynamic non-axial octupole deformations suggested by Skyrme-HF and selfconsistent RPA calculations NUCLEAR STRUCTURE 32,34,36,38,40,42,44,46,48,50S, 36Ar, 40Ca, 44Ti, 48Cr; calculated deformation energy curves. 32,36,48,50S; calculated levels, J, π, transition matrix elements. Skyrme-Hartree-Fock and RPA calculations.
doi: 10.1142/S0218301304001886
2004VA25 Yad.Fiz. 67, 1660 (2004); Phys.Atomic Nuclei 67, 1633 (2004) QRPA Coordinate Space Calculations of 2+ States in N = 20 Isotones NUCLEAR STRUCTURE 30Ne, 32Mg, 34Si, 36S, 38Ar; calculated excitation energies for first 2+ states, B(E2), isoscalar quadrupole strength functions. Quasiparticle RPA approach.
doi: 10.1134/1.1802349
2004YA06 Phys.Rev. C 69, 034301 (2004) Pairing effects on the collectivity of quadrupole states around 32Mg NUCLEAR STRUCTURE 30Ne, 32Mg, 34Si, 36S, 38Ar, 40Ca; calculated single-particle level energies, pairing effects, transitions B(E2), quadrupole strength functions. Quasiparticle RPA, Skyrme interactions.
doi: 10.1103/PhysRevC.69.034301
2003IN03 Nucl.Phys. A728, 52 (2003) T.Inakura, S.Mizutori, M.Yamagami, K.Matsuyanagi Superdeformed bands in neutron-rich sulfur isotopes suggested by cranked Skyrme-Hartree-Fock calculations NUCLEAR STRUCTURE 32,34,36,38,40,42,44,46,48,50S, 38Ar; calculated potential energy vs deformation. 32,36,50S deduced superdeformed configurations. Cranked Skyrme-Hartree-Fock approach.
doi: 10.1016/j.nuclphysa.2003.08.012
2002IN04 Nucl.Phys. A710, 261 (2002) T.Inakura, S.Mizutori, M.Yamagami, K.Matsuyanagi Cranked Skyrme-Hartree-Fock calculation for superdeformed and hyperdeformed rotational bands in N = Z nuclei from 32S to 48Cr NUCLEAR STRUCTURE 32S, 36Ar, 40Ca, 44Ti, 48Cr; calculated rotational bands deformation, related features. 32S, 36Ar, 40Ca, 44Ti; deduced superdeformed bands. 36Ar, 40Ca, 44Ti, 48Cr; deduced hyperdeformed bands. 40Ca deduced octupole softness. Symmetry-unrestricted cranked Skyrme-Hartree-Fock method.
doi: 10.1016/S0375-9474(02)01164-8
2002IN06 Prog.Theor.Phys.(Kyoto), Suppl. 146, 567 (2002) T.Inakura, M.Yamagami, S.Mizutori, K.Matsuyanagi Cranked Skyrme-Hartree-Fock Calculations for Superdeformed and Hyperdeformed Bands in N = Z Nuclei 32S, 36Ar, 40Ca, and in Neutron Rich Nuclei, 14Be, 26Ne, 46S NUCLEAR STRUCTURE 32,46S, 36Ar, 40Ca, 44Ti, 48Cr; calculated superdeformed and hyperdeformed bands energy vs spin. Cranked Skyrme-Hartree-Fock approach.
doi: 10.1143/PTPS.146.567
2001YA15 Nucl.Phys. A693, 579 (2001) M.Yamagami, K.Matsuyanagi, M.Matsuo Symmetry-Unrestricted Skyrme-Hartree-Fock-Bogoliubov Calculations for Exotic Shapes in N = Z Nuclei from 64Ge to 84Mo NUCLEAR STRUCTURE 64Ge, 68Se, 72Kr, 76Sr, 80Zr, 84Mo; calculated deformation parameters; deduced shape coexistence, nonaxial octupole deformation. Symmetry-unrestricted Skyrme-Hartree-Fock-Bogoliubov calculations.
doi: 10.1016/S0375-9474(01)00918-6
2000YA14 Nucl.Phys. A672, 123 (2000) High-Spin Yrast Structure of 32S Suggested by Symmetry-Unrestricted, Cranked Hartree-Fock Calculations NUCLEAR STRUCTURE 32S; calculated high-spin rotational bands excitation energy vs spin, deformation, related features; deduce hyperdeformation, non-axial octupole deformation. Symmetry-unrestricted, cranked Hartree-Fock calculations.
doi: 10.1016/S0375-9474(99)00391-7
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