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NSR database version of May 1, 2024.

Search: Author = K.Mizuyama

Found 20 matches.

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2023MI03      Phys.Rev. C 107, 024303 (2023)

K.Mizuyama, N.Nhu Le, T.Dieu Thuy, N.Hoang Tung, D.Quang Tam, T.V.Nhan Hao

Complex eigenenergy of the giant dipole resonance for 16O by the Jost function within the random-phase approximation framework

NUCLEAR STRUCTURE 16O; calculated electric dipole (E1) strength distribution, poles in the complex energy plane corresponding to the RPA excited states (e.g. Giant Dipole Resonance). Jost function method extended within the framework of random phase approximation (Jost-RPA). Comparison to results obtained with continuum RPA (cRPA) calculations. Found that the 16O electric dipole giant resonance is formed by multiple poles, each of which is an independent pole with different widths, origins, response properties to residual interactions, and components structures of the density fluctuation.

doi: 10.1103/PhysRevC.107.024303
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2022MI11      Phys.Rev. C 106, 014619 (2022)

K.Mizuyama, H.Dai Nghia, T.Dieu Thuy, N.Hoang Tung, T.V.Nhan Hao

Pairing effects on vorticity of incident neutron currents at quasiparticle resonance energies in n-A elastic scattering

doi: 10.1103/PhysRevC.106.014619
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2021MI15      Phys.Rev. C 104, 034606 (2021)

K.Mizuyama, H.Cong Quang, T.Dieu Thuy, T.V.Nhan Hao

Classification of resonances and pairing effects on n-A scattering within the Hartree-Fock-Bogoliubov framework

doi: 10.1103/PhysRevC.104.034606
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2020MI05      Phys.Rev. C 101, 034601 (2020)

K.Mizuyama, N.Nhu Le, T.V.Nhan Hao

Fano effect on neutron elastic scattering by open-shell nuclei

doi: 10.1103/PhysRevC.101.034601
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2019MI07      Phys.Rev. C 99, 054607 (2019)

K.Mizuyama, N.Nhu Le, T.Dieu Thuy, T.V.Nhan Hao

Jost function formalism based on the Hartree-Fock-Bogoliubov formalism

doi: 10.1103/PhysRevC.99.054607
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2014CO20      Phys.Scr. 89, 054006 (2014)

G.Colo, P.F.Bortignon, M.Brenna, X.Roca-Maza, E.Vigezzi, K.Moghrabi, M.Grasso, K.Mizuyama

Progress in nuclear structure beyond the mean-field approximation

NUCLEAR STRUCTURE 39,41Ca; calculated level density, spectroscopic factor, strength functions using nuclear density functional theory with particle-vibration coupling and other extensions. Compared with available data.

doi: 10.1088/0031-8949/89/5/054006
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2014MI05      Phys.Rev. C 89, 034620 (2014)

K.Mizuyama, K.Ogata

Low-lying excited states of 24O investigated by a self-consistent microscopic description of proton inelastic scattering

NUCLEAR REACTIONS 24O(p, p), (p, p'), E=62 MeV/nucleon; calculated differential σ and σ(θ) as function of 24O excitation energy for elastic and inelastic channels to low-spin states. Self-consistent microscopic calculation with continuum particle-vibration coupling (cPVC) method using SLy5, SkM*, and SGII effective nucleon-nucleon interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.034620
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2013BR03      Phys.Scr. T154, 014020 (2013)

M.Brenna, X.Roca-Maza, G.Colo, P.F.Bortignon, K.Mizuyama, G.Pozzi

Low-lying dipole response in stable and unstable nuclei

NUCLEAR STRUCTURE 68Ni, 132Sn, 208Pb; calculated total energy and rms charge radii, dipole response and strength functions, neutron and proton transition densities, RPA-pygmy states. Skyrme Hartree-Fock plus random phase approximation (RPA) predictions.

doi: 10.1088/0031-8949/2013/T154/014020
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2012MI03      Phys.Rev. C 85, 024307 (2012)

K.Mizuyama, G.Colo

Subtraction of the spurious translational mode from the random-phase approximation response function

NUCLEAR STRUCTURE 24O, 208Pb; calculated E1 strength function, isoscalar compression dipole spectrum, level density. Self-consistent random-phase approximation (RPA). Subtraction of spurious contamination modes.

doi: 10.1103/PhysRevC.85.024307
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2012MI20      Phys.Rev. C 86, 034318 (2012)

K.Mizuyama, G.Colo, E.Vigezzi

Continuum particle-vibration coupling method in coordinate-space representation for finite nuclei

NUCLEAR STRUCTURE 24O, 40Ca, 208Pb; calculated neutron single-particle energies, single-particle level densities, isoscalar (IS) and isovector (IV) strength functions for 2+, 3-, 4+ and 5- states, spectroscopic factors for one-nucleon transfer reactions, B(Λ) using the nuclear particle-vibration coupling (PVC) model. Comparison with experimental data.

doi: 10.1103/PhysRevC.86.034318
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2012MI23      Phys.Rev. C 86, 041603 (2012)

K.Mizuyama, K.Ogata

Self-consistent microscopic description of neutron scattering by 16O based on the continuum particle-vibration coupling method

NUCLEAR REACTIONS 16O(n, n), (n, X), E<30 MeV; analyzed total σ(E), total elastic σ(E), and reaction σ(E), elastic σ(θ) using continuum particle-vibration coupling (cPVC) method with the Skyrme nucleon-nucleon (NN) effective interaction. Fragmentation of the single-particle resonance into many peaks.

doi: 10.1103/PhysRevC.86.041603
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2012RO05      Phys.Rev. C 85, 024601 (2012)

X.Roca-Maza, G.Pozzi, M.Brenna, K.Mizuyama, G.Colo

Low-lying dipole response: Isospin character and collectivity in 68Ni, 132Sn, and 208Pb

NUCLEAR STRUCTURE 68Ni, 132Sn, 208Pb; calculated excitation energies of PDS, ISGDR and IVGDR, B(E1) strengths, neutron and proton transition densities, single particle levels for isoscalar and isovector transitions. Fully self-consistent nonrelativistic mean field (MF), Skyrme Hartree-Fock plus random phase approximation (RPA). Comparison with experimental data.

doi: 10.1103/PhysRevC.85.024601
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2010TO02      Phys.Rev. C 81, 034312 (2010)

J.Toivanen, B.G.Carlsson, J.Dobaczewski, K.Mizuyama, R.R.Rodriguez-Guzman, P.Toivanen, P.Vesely

Linear response strength functions with iterative Arnoldi diagonalization

NUCLEAR STRUCTURE 132Sn; calculated 0+, 1- and 2+ RPA strength functions for isoscalar (IS) and isovector (IV) transitions using iterative non-Hermitian Arnoldi diagonalization procedures.

doi: 10.1103/PhysRevC.81.034312
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2009MI05      Phys.Rev. C 79, 024313 (2009)

K.Mizuyama, M.Matsuo, Y.Serizawa

Continuum quasiparticle linear response theory using the Skyrme functional for multipole responses of exotic nuclei

NUCLEAR STRUCTURE 20O, 54Ca; calculated strength functions for isovector dipole response B(E1), isoscalar quadrupole B(IS2), isovector quadrupole B(IV2), energy-weighted sum rules, transition densities using continuum quasiparticle random phase approximation and Skyrme functional. Comparison with results from Landau-Migdal approximation.

doi: 10.1103/PhysRevC.79.024313
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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
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2008KO09      Phys.Rev. C 77, 064307 (2008)

M.Kortelainen, J.Dobaczewski, K.Mizuyama, J.Toivanen

Dependence of single-particle energies on coupling constants of the nuclear energy density functional

NUCLEAR STRUCTURE 16O, 40,48Ca, 48,56Ni, 100,132Sn, 208Pb; calculated single particle levels, regression coefficients, neutron densities, coupling constants. Energy density functional methods, Skyrme functionals.

doi: 10.1103/PhysRevC.77.064307
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2008TO11      Phys.Rev. C 78, 034306 (2008)

J.Toivanen, J.Dobaczewski, M.Kortelainen, K.Mizuyama

Error analysis of nuclear mass fits

doi: 10.1103/PhysRevC.78.034306
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2007MA69      Nucl.Phys. A788, 307c (2007)

M.Matsuo, Y.Serizawa, K.Mizuyama

Pairing collectivity in medium-mass neutron-rich nuclei near drip-line

NUCLEAR STRUCTURE 120,158Sn; calculated E1 and isovector quadrupole strength distributions.

doi: 10.1016/j.nuclphysa.2007.01.017
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2005MA40      Phys.Rev. C 71, 064326 (2005)

M.Matsuo, K.Mizuyama, Y.Serizawa

Di-neutron correlation and soft dipole excitation in medium mass neutron-rich nuclei near drip line

NUCLEAR STRUCTURE 18,20,22,24O, 50,52,54,56,58,60Ca, 80,82,84,86Ni; calculated neutron pair gaps, two-body correlation densities, effect on soft dipole excitations. Hartree-Fock-Bogoliubov method, quasiparticle RPA.

doi: 10.1103/PhysRevC.71.064326
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2005MA99      Eur.Phys.J. A 25, Supplement 1, 563 (2005)

M.Matsuo, K.Mizuyama, Y.Serizawa

Di-neutron correlations in medium-mass neutron-rich nuclei near the dripline

NUCLEAR STRUCTURE 84Ni; calculated neutron two-body correlation density, B(E1), transition densities. Continuum quasiparticle RPA.

doi: 10.1140/epjad/i2005-06-045-9
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