Study of the {sup 18}Ne and {sup 11}Li Nuclei in a Three-body Model

Journal Article · Mon Apr 26 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3428916· OSTI ID:21367233

Lay, J A; Moro, A M ^[1]; Jensen, A S ^[2]

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1. Departamento de FAMN, Universidad de Sevilla, Apdo. 1065, E-41080 Sevilla (Spain)
2. Departament of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C (Denmark)

We investigate the structure of the nuclei {sup 18}Ne and {sup 11}Li within a three-body model using Faddeev equations with the hyperspherical adiabatic expansion method. The {sup 18}Ne system is described as an inert {sup 16}O core and two protons. Besides reproducing the experimentally known bound states, two tentative states with J{sup p}i = 3{sup +} and 1{sup -} are predicted close to the two-proton separation threshold. We also find several low-lying resonances based on a 3{sup -} excited state of the core. The {sup 11}Li nucleus is treated using a {sup 9}Li+n+n model. In this case, the lack of information of the {sup 9}Li+n spectrum only allows us to obtain the ground state with enough accuracy. The calculated three-body wavefunction has been used to develop a simplified two-body model of the {sup 11}Li nucleus (dineutron model). This model is found to reproduce very well the recent data for the electric transition probability, B(E1).

• OSTI ID: 21367233
• Journal Information: AIP Conference Proceedings, Vol. 1231, Issue 1; Conference: LA RABIDA 2009: International scientific meeting on nuclear physics: Basic concepts in nuclear physics - Theory, experiments and applications, La Rabida (Spain), 4-10 Jul 2009; Other Information: DOI: 10.1063/1.3428916; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BINDING ENERGY
BOUND STATE
E1-TRANSITIONS
EXCITED STATES
FADDEEV EQUATIONS
GROUND STATES
LITHIUM 11
LITHIUM 9
NEON 18
NUCLEAR STRUCTURE
OXYGEN 16
PROTON-PROTON INTERACTIONS
PROTONS
RESONANCE
SPIN
THREE-BODY PROBLEM
TWO-BODY PROBLEM
WAVE FUNCTIONS
ANGULAR MOMENTUM
BARYON-BARYON INTERACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EVEN-EVEN NUCLEI
FERMIONS
FUNCTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
LITHIUM ISOTOPES
MANY-BODY PROBLEM
MILLISECONDS LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NEON ISOTOPES
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
ODD-EVEN NUCLEI
OXYGEN ISOTOPES
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PROTON-NUCLEON INTERACTIONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES