Hindrance in the fusion of {sup 48}Ca+{sup 48}Ca.

Journal Article · Tue Nov 30 04:00:00 EST 2010 · Phys. Rev. C

DOI:https://doi.org/10.1103/PhysRevC.82.054621· OSTI ID:1014822

Esbensen, H; Jiang, C L; Stefanini, A M ^[1]

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1. Physics

The coupled-channels technique is applied to analyze recent fusion data for {sup 48}Ca+{sup 48}Ca. The calculations include the excitations of the low-lying 2{sup +}, 3{sup -}, and 5{sup -} states in projectile and target, and the influence of mutual excitations as well as the two-phonon quadrupole excitations is also investigated. The ion-ion potential is obtained by double-folding the nuclear densities of the reacting nuclei with the M3Y+repulsion effective interaction but a standard Woods-Saxon potential is also applied. The data exhibit a strong hindrance at low energy compared to calculations that are based on a standard Woods-Saxon potential but they can be reproduced quite well by applying the M3Y+repulsion potential with an adjusted radius of the nuclear density. The influence of the polarization of high-lying states on the extracted radius is discussed.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1014822
• Report Number(s): ANL/PHY/JA-68167
• Journal Information: Phys. Rev. C, Journal Name: Phys. Rev. C Journal Issue: Nov. 30, 2010 Vol. 82; ISSN 0556-2813
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR MATTER
NUCLEI
POLARIZATION
PROJECTILES
QUADRUPOLES
WOODS-SAXON POTENTIAL