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NSR database version of April 27, 2024.

Search: Author = H.Sasaki

Found 6 matches.

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2024SA18      Phys.Lett. B 851, 138581 (2024)

H.Sasaki, Y.Yamazaki, T.Kajino, G.J.Mathews

Effects of Hoyle state de-excitation on νp–process nucleosynthesis and Galactic chemical evolution

NUCLEAR STRUCTURE ¹²C, ^92,94Mo, ^96,98Ru; calculated impact of Hoyle states on isotope production in proton-rich neutrino-driven winds.

doi: 10.1016/j.physletb.2024.138581
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2023KA11      Phys.Rev. C 107, 044608 (2023)

T.Kawano, A.E.Lovell, S.Okumura, H.Sasaki, I.Stetcu, P.Talou

Consideration of memory of spin and parity in the fissioning compound nucleus by applying the Hauser-Feshbach fission fragment decay model to photonuclear reactions

NUCLEAR REACTIONS ²³⁸U(n, X), (γ, X), E<20 MeV; calculated partial population of compound nucleus. ^235,238U, ²³⁹Pu(γ, F), E=1-20 MeV; calculated prompt fission γ-ray spectra, average number of prompt and delayed neutrons, total kinetic energies, cumulative fission product yields. Hauser-Feshbach statistical calculations of fission fragment decay with HF³D model. Comparison to experimental results and IAEA evaluation.

doi: 10.1103/PhysRevC.107.044608
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2023MU06      Phys.Rev. C 107, 034606 (2023)

M.R.Mumpower, D.Neudecker, H.Sasaki, T.Kawano, A.E.Lovell, M.W.Herman, I.Stetcu, M.Dupuis

Collective enhancement in the exciton model

NUCLEAR REACTIONS ²³⁹Pu(n, 2n), E=6-24 MeV; calculated σ(E). ²³⁹Pu(n, xn), E=14 MeV; ¹⁸¹Ta, ¹⁶⁵(n, xn), E=20 MeV; calculated neutron emission spectra. Calculation with statistical model framework CoH3 with increased one-particle-one-hole state density used in the exciton model. Comparison to experimental data and ENDF/B-VIII.0.

NUCLEAR STRUCTURE ²³⁹Pu; calculated 1p-1h state densities.

doi: 10.1103/PhysRevC.107.034606
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2023SA19      Phys.Rev. C 107, 054312 (2023)

H.Sasaki, T.Kawano, I.Stetcu

Quasiparticle random-phase approximation calculations for M1 transitions with the noniterative finite-amplitude method and application to neutron radiative capture cross sections

NUCLEAR REACTIONS ¹⁵⁶Gd(γ, X), E<20 MeV; calculated total photoabsorption σ(E) of the M1 and E1 transitions, B(M1) strength functions of the M1 transitions, scissor mode excitations with and without spurious mode. ^{156,157,158,161}Gd(n, X), E=0.001-15 MeV; calculated capture σ(E). Calculations of magnetic dipole transitions in the framework of finite amplitude method of quasiparticle random-phase approximation (FAM-QRPA) with the Hartree-Fock+Bardeen-Cooper-Schrieffer(HF+BCS) single-particle states. Comparison to experimental data.

doi: 10.1103/PhysRevC.107.054312
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2022KO31      Astrophys.J. 937, 116 (2022)

H.Ko, D.Jang, M.-K.Cheoun, M.Kusakabe, H.Sasaki, X.Yao, T.Kajino, T.Hayakawa, M.Ono, T.Kawano, G.J.Mathews

Comprehensive Analysis of the Neutrino Process in Core-collapsing Supernovae

ATOMIC MASSES ⁷Li, ⁷Be, ¹¹B, ¹¹C, ⁹²Nb, ⁹⁸Tc, ¹³⁸La, ¹⁸⁰Ta; analyzed available data; deduced abundances for the neutrino flavor change effects due to neutrino self-interaction and shock wave propagation, as well as the matter effects on the neutrino process in core-collapsing supernovae (CCSNe).

doi: 10.3847/1538-4357/ac88cd
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2022SA16      Phys.Rev. C 105, 044311 (2022)

H.Sasaki, T.Kawano, I.Stetcu

Noniterative finite amplitude methods for E1 and M1 giant resonances

NUCLEAR REACTIONS ¹⁶O, ^40,48Ca, ⁵⁴Fe, ¹⁵⁴Sm, ²⁰⁸Pb, ²³⁸U(γ, X), E<40 MeV; calculated photoabsorption σ(E), E1 and M1 strengths distributions, giant dipole resonance features. Finite amplitude method (FAM) used to solve the fully self-consistent random phase approximation equations (FAM-RPA method). Comparison to experimental data.

doi: 10.1103/PhysRevC.105.044311
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