Microscopic study of Ca$+$Ca fusion

Details Microscopic study of Ca$+$Ca fusion Microscopic study of Ca$+$Ca fusion

2012-02-17

arxiv.org/abs/1202.3932v1

Phys. Rev. C 85, 044606 (2012)

Physics

Nuclear Physics

Nuclear Theory

11 pages, 13 figures

Scientific paper

10.1103/PhysRevC.85.044606

We investigate the fusion barriers for reactions involving Ca isotopes $\mathrm{^{40}Ca}+\mathrm{^{40}Ca}$, $\mathrm{^{40}Ca}+\mathrm{^{48}Ca}$, and $\mathrm{^{48}Ca}+\mathrm{^{48}Ca}$ using the microscopic time-dependent Hartree-Fock theory coupled with a density constraint. In this formalism the fusion barriers are directly obtained from TDHF dynamics. We also study the excitation of the pre-equilibrium GDR for the $\mathrm{^{40}Ca}+\mathrm{^{48}Ca}$ system and the associated $\gamma$-ray emission spectrum. Fusion cross-sections are calculated using the incoming-wave boundary condition approach. We examine the dependence of fusion barriers on collision energy as well as on the different parametrizations of the Skyrme interaction.

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