Large-amplitudeQn-Qpcollectivity in the neutron-rich oxygen isotopeO20

Autor:	A. P. Severyukhin, Paul-Henri Heenen, H. Flocard, Michaël Bender
Rok vydání:	2007
Předmět:	Physics Nuclear and High Energy Physics Isovector Proton 010308 nuclear & particles physics Generator (category theory) Isoscalar Nuclear Theory 01 natural sciences Amplitude Pairing 0103 physical sciences Quadrupole Neutron Atomic physics Nuclear Experiment 010306 general physics
Zdroj:	Physical Review C. 75
ISSN:	1089-490X 0556-2813
DOI:	10.1103/physrevc.75.064303
Popis:	By means of HFB calculations with independent constraints on axial neutron and proton quadrupole moments Q{sub n} and Q{sub p}, we investigate the large amplitude isoscalar and isovector deformation properties of the neutron-rich isotope {sup 20}O. Using the particle-number and angular-momentum projected generator coordinate method, we analyze the collective dynamics in the {l_brace} , {r_brace} plane. The parametrization SLy4 of the Skyrme interaction is used for all calculations in connection with a density-dependent zero-range pairing interaction. Our results show that already for this moderately neutron-rich nucleus the transition moments are modified when independent neutron and proton collective dynamics are allowed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6b5cda16c2f3f0281fd12057d8fa9269 https://doi.org/10.1103/physrevc.75.064303 Zobrazit plný text záznamu