Odd nuclei spectroscopy within a self-consistent multiphonon approach

0490013 - ÚJF 2019 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
De Gregorio, G. - Knapp, F. - Lo Iudice, N. - Veselý, Petr
Odd nuclei spectroscopy within a self-consistent multiphonon approach.
Journal of Physics Conference Series. Vol. 966. Bristol: IOP Publishing, 2018, č. článku UNSP 012007. ISSN 1742-6588.
[12th International Spring Seminar on Nuclear Physics - Current Problems and Prospects for Nuclear Structure. Sant'Angelo d'Ischia (IT), 15.05.2017-19.05.2017]
Grant CEP: GA ČR GA13-07117S
Institucionální podpora: RVO:61389005
Klíčová slova: odd nuclei * EMPM * full particle-phonon space
Obor OECD: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

The extension to odd nuclei of the equation of motion phonon method (EMPM) is briefly outlined. It derives and solves iteratively a set of equations of motion which yield an orthonormal basis of states composed of an odd particle coupled to orthonormal multiphonon states, also generated within the EMPM, describing the excitations of a doubly magic core. The basis so obtained is used to solve the eigenvalue problem in the full particle-phonon space. We have applied the method to the odd neighbors of O-16 using an optimized chiral potential in a space spanned by particle-core basis states which include up to three-phonons. The calculations have shown that the multiphonon states enhance enormously the density of levels and compress the whole spectrum, consistently with the data. They also contribute substantially to improve the agreement with the experimental moments and transitions strengths.
Trvalý link: http://hdl.handle.net/11104/0284306