6533b858fe1ef96bd12b6bcd
RESEARCH PRODUCT
Microscopic description ofα+40Caquasimolecular resonances
D. S. DelionJouni Suhonensubject
PhysicsNuclear and High Energy PhysicsAtomic orbitalProtonSpectrum (functional analysis)Bound stateResonanceNeutronContinuum (set theory)Alpha decayAtomic physicsdescription
A multistep microscopic approach describing the dynamics of quasimolecular resonances is applied to the $\ensuremath{\alpha}{+}^{40}\mathrm{Ca}$ system. The lowest collective two-particle eigenmodes are used as building blocks of the four-particle states. The pair states are built on mean-field single-particle orbitals including also sharp resonances in continuum. The structure of ${}^{44}\mathrm{Ti}$ is analyzed and strong high-lying $\ensuremath{\alpha}$-like resonances are found in good agreement with the experimentally observed quasimolecular spectrum. The resonances turn out to be very collective and contain mostly proton-neutron pairs where the lowest proton single-particle resonance, $\ensuremath{\pi}{p}_{3/2},$ couples with the lowest neutron bound state $\ensuremath{\nu}{f}_{7/2}.$
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-05-21 | Physical Review C |