Isospin coupling in time-dependent-mean-field theories and decay of isovector excitations

Details Isospin coupling in time-dependent-mean-field theories and decay of isovector excitations Isospin coupling in time-dependent-mean-field theories and decay of isovector excitations

2005-04-15

arxiv.org/abs/nucl-th/0504050v1

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures

Scientific paper

We show that isospin non-diagonal terms should appear in the mean field Hamiltonian when neutron-proton symmetry is broken. They give rise to charge mixing in the single-particle wave-functions. We study the Time Dependent Hartree-Fock response of a charge-exchange excitation which generates a charge mixing in Ca isotopes. We find an enhancement of the low energy proton emission in neutron-rich isotopes interpreted in terms of a charge oscillation below the barrier.

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