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NSR database version of May 2, 2024.

Search: Author = N.W.Lwin

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2018HA15      Phys.Rev. C 97, 034623 (2018)

K.Hagino, A.B.Balantekin, N.W.Lwin, E.Shwe Zin Thein

Origin of a maximum of the astrophysical S factor in heavy-ion fusion reactions at deep subbarrier energies

NUCLEAR REACTIONS ⁶⁴Ni(⁶⁴Ni, X), E(cm)=83-97 MeV; ⁶⁴Ni(²⁸Si, X), E(cm)=43-53 MeV; calculated fusion σ(E), astrophysical S factor, first derivative of astrophysical S factor using method of two-potential fit to fusion cross sections at deep subbarrier energies. Comparison with experimental data.

doi: 10.1103/PhysRevC.97.034623
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2017LW01      Phys.Rev. C 95, 064601 (2017)

N.W.Lwin, N.N.Htike, K.Hagino

Applicability of the Wong formula for fusion cross sections from light to heavy systems

NUCLEAR REACTIONS ¹⁶O(¹²C, X), E(cm)=4-17 MeV; ⁴⁰Ca(¹²C, X), E(cm)=10-35 MeV; ¹⁵⁴Sm(¹²C, X), E(cm)=25-70 MeV; ²³⁸U(¹²C, X), E(cm)=45-80 MeV; ²³⁸U, ¹⁵²Sm, ⁷⁴Ge, ⁴⁰Ar, ²⁸Si, ²⁰Ne, ¹⁶O(⁶Li, X), E-V_B<14 MeV; calculated fusion σ(E) for these reactions, and for A=12-240 targets and ⁴He, ⁶Li, ¹²C, ¹⁶O and ²⁰Ne beams using Wong formula for single-channel fusion cross sections; deduced comparisons between the exact and approximate fusion cross sections.

doi: 10.1103/PhysRevC.95.064601
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2012SH15      Phys.Rev. C 85, 057602 (2012)

E.Shwe Zin Thein, N.W.Lwin, K.Hagino

Transition from subbarrier to deep-subbarrier regimes in heavy-ion fusion reactions

NUCLEAR REACTIONS ⁶⁴Ni(⁶⁴Ni, X), E(cm)=80-110 MeV; ²⁰⁸Pb(¹⁶O, X), E(cm)=60-100 MeV; ⁶⁴Ni(²⁸Si, X), ⁸⁹Y(⁶⁰Ni, X), ⁸⁹Y, ^90,92Zr(⁹⁰Zr, X), E not given; analyzed σ(E), fusion cross section, threshold energy for deep-subbarrier fusion hindrance, asymptotic energy shift. One-dimensional potential model with a Woods-Saxon internuclear potential. Comparison with empirical systematics and calculations using Krappe-Nix-Sierk (KNS) potential.

doi: 10.1103/PhysRevC.85.057602
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2007TA20      Nucl.Phys. A787, 190c (2007)

N.Takigawa, Z.M.M.Mahmoud, Z.F.Muhammad, N.W.Lwin, T.Takehi, K.Hagino

Effects of Transitional Shape and Shape Admixture and of Anti-symmetrization on Sub-Barrier Fusion

NUCLEAR REACTIONS ⁷²Ge(⁷²Ge, X), ⁷⁴Ge(⁷⁴Ge, X), E(cm)=105-155 MeV; calculated fusion σ, fusion barrier distribution. ^72,74Ge deduced levels, coupling matrix elements, shape deformation and admixture. Vibrational and rotational models. ²⁰⁸Pb(¹⁶O, X), E(cm)=70-110 MeV; calculated fusion σ. Resonating group method. Anti-symmetrization effect.

doi: 10.1016/j.nuclphysa.2006.12.031
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2006HA28      Phys.Rev. C 74, 017310 (2006)

K.Hagino, N.W.Lwin, M.Yamagami

Deformation parameter for diffuse density

NUCLEAR STRUCTURE ^{24,26,28,30,32,34,36,38,40}Mg; calculated deformation and diffuseness parameters.

doi: 10.1103/PhysRevC.74.017310
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