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

Journal Article · Mon Nov 15 04:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.054621· OSTI ID:21499198

Esbensen, H; Jiang, C L ^[1]; Stefanini, A M ^[2]

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1. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro (Padova) (Italy)

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.

• OSTI ID: 21499198
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 82; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ATOM COLLISIONS
ATOM-ATOM COLLISIONS
CALCIUM 48
CALCIUM ISOTOPES
COLLISIONS
COMPUTERIZED SIMULATION
COUPLED CHANNEL THEORY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
INTERACTIONS
INTERMEDIATE MASS NUCLEI
ION COLLISIONS
ION-ION COLLISIONS
ISOTOPES
MATTER
NUCLEAR MATTER
NUCLEAR POTENTIAL
NUCLEI
PHONONS
POLARIZATION
POTENTIALS
QUASI PARTICLES
SIMULATION
STABLE ISOTOPES
WOODS-SAXON POTENTIAL