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NSR database version of May 8, 2024.

Search: Author = S.Takahara

Found 10 matches.

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2012TA21      Phys.Rev. C 86, 064323 (2012)

S.Takahara, N.Tajima, Y.R.Shimizu

Nuclear prolate-shape dominance with the Woods-Saxon potential

NUCLEAR STRUCTURE Z=8-126, N=8-184; calculated quadrupole deformation contour maps for 2148 even-even nuclei between the drip lines using six different parameter sets of the Woods-Saxon (WS) potential. Influence of surface thickness, strength of spin-orbit potential, and strength of pairing correlations. Comparison with results of Nilsson potential. Prolate-shape predominance of nuclear ground-state deformation.

ATOMIC MASSES Z=8-126, N=8-184; calculated masses, nuclear total energy surface versus β₂ and β₄ deformation parameters for 2148 even-even nuclei using modified Strutinsky method with each of the 589 types of WS potentials.

doi: 10.1103/PhysRevC.86.064323
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2010ON02      Phys.Rev. C 82, 034310 (2010)

T.Ono, Y.R.Shimizu, N.Tajima, S.Takahara

Method to circumvent the neutron-gas problem in the BCS treatment for nuclei far from stability

NUCLEAR STRUCTURE ⁸⁸Ni, ^120,160Sn, ¹²⁶Zr, ^160,208Dy, ²⁵⁶Hg; calculated neutron rms radii and neutron deformation parameters. ^{78,80,82,84,86,88,90,92,94}Ni; calculated neutron radii. ^{108,110,112,114,116,118,120,122,124,126,128}Sn; calculated neutron skin thickness and comparison with experimental data. ⁴⁰Mg; calculated neutron's contribution to moment of inertia as a function of neutron pairing gap. New Kruppa-BCS method for the continuum level density.

doi: 10.1103/PhysRevC.82.034310
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2010TA19      Phys.Rev. C 82, 034316 (2010)

N.Tajima, Y.R.Shimizu, S.Takahara

Improved microscopic-macroscopic approach incorporating the effects of continuum states

NUCLEAR STRUCTURE ⁴⁸Ca, ⁹⁰Zr, ¹⁴⁶Gd, ^166,226Er, ^208,242Pb, ²⁹⁸Fl; calculated Neutron shell correction energies and the sum of single-particle energies. ¹⁵⁴Er, ²⁰⁸Pb; calculated neutrons level densities and Kruppa level densities. Z=68, N=56-166; calculated neutrons pairing force strength, pairing gaps and proton and neutron Fermi levels for even-even nuclei. Z=8-120, N=10-180; calculated two-nucleon drip lines. Oscillator-basis Thomas-Fermi (OBTF) approximation and Kruppa level density method with modified BCS equations.

doi: 10.1103/PhysRevC.82.034316
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2004TA38      Phys.Rev. C 70, 057307 (2004)

S.Takahara, M.Tohyama, P.Schuck

Extended RPA with ground-state correlations in a solvable model

doi: 10.1103/PhysRevC.70.057307
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2004TO20      Eur.Phys.J. A 21, 217 (2004)

M.Tohyama, S.Takahara, P.Schuck

Extended RPA with ground-state correlations

NUCLEAR STRUCTURE ²²O; calculated ground-state configuration, quadrupole mode and two-phonon strength distributions. Time-dependent density matrix theory, small amplitude limit.

doi: 10.1140/epja/i2003-10199-6
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2004TO23      Prog.Theor.Phys.(Kyoto) 112, 499 (2004)

M.Tohyama, S.Takahara

Relation between Density-Matrix Theory and Pairing Theory

doi: 10.1143/PTP.112.499
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1998TA23      Nucl.Phys. A642, 461 (1998)

S.Takahara, N.Tajima, N.Onishi

Study of Superdeformation in Non-Rotating States using the Skyrme-Hartree-Fock Method

NUCLEAR STRUCTURE ¹⁹⁴Hg, ^236,238U; calculated energy, pairing correlation vs deformation; deduced parameters. Z=36-82; calculated non-rotating superdeformed minima deformation, energy, barrier height. HF + BCS method, Skyrme interaction.

doi: 10.1016/S0375-9474(98)00535-1
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1996TA10      Nucl.Phys. A603, 23 (1996)

N.Tajima, S.Takahara, N.Onishi

Extensive Hartree-Fock + BCS Calculation with Skyrme SIII Force

NUCLEAR STRUCTURE Z=4-98; calculated intrinsic quadrupole moments, even-even nuclei. Z=2-114; calculated nucleon skin thicknesses, quadrupole, hexadecapole deformation vs N ≤ 180. Other aspects included, Hartree-Fock+BCS calculation, Skyrme SIII force.

doi: 10.1016/0375-9474(96)00156-X
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1995TA16      Nucl.Phys. A588, 215c (1995)

N.Tajima, N.Onishi, S.Takahara

Deformed Hartree-Fock Calculation of Proton-Rich Nuclei

NUCLEAR STRUCTURE Z=42-48; Z=52-58; calculated quadrupole deformation parameter vs N, two-proton separation energy. Even-even, proton rich nuclei, HF+BCS calculations, Skyrme interactions, other aspects also studied.

doi: 10.1016/0375-9474(95)00142-N
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1994TA17      Phys.Lett. 331B, 261 (1994)

S.Takahara, N.Onishi, N.Tajima

Pairing Correlation in Nuclear Matter from Skyrme Force

doi: 10.1016/0370-2693(94)91048-0
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