Deformations and electromagnetic moments in carbon and neon isotopes

Journal Article · Mon Nov 01 00:00:00 EST 2004 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.70.054316· OSTI ID:20695734

Sagawa, H; Zhou, X R; Zhang, X Z; Suzuki, Toshio ^[1]

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1. Center for Mathematical Sciences, University of Aizu, Aizu-Wakamatsu, Fukushima 965-8560 (Japan)

Static and dynamic quadrupole moments of C and Ne isotopes are investigated by using the deformed Skyrme Hartree-Fock model and also shell model wave functions with isospin-dependent core polarization charges. We point out that the deformations of C and Ne isotopes have a strong isotope dependence as a manifestation of spontaneous symmetry breaking effect in nuclear physics. The effect of spontaneous symmetry breaking is a general phenomenon known in many fields of physics. It is shown at the same time that the quadrupole moments Q and the magnetic moments {mu} of the odd C and odd Ne isotopes depend clearly on assigned configurations, and their experimental data will be useful to determine the deformations of the ground states of nuclei near the neutron drip line. Electric quadrupole (E2) transitions in even C and Ne isotopes are also studied using the polarization charges obtained by the particle vibration coupling model with shell model wave functions. Although the observed isotope dependence of the E2 transition strength is reproduced properly in both C and Ne isotopes, the calculated strength overestimates an extremely small observed value in {sup 16}C.

• OSTI ID: 20695734
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 70, Issue 5; Other Information: DOI: 10.1103/PhysRevC.70.054316; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON 16
COUPLING
DEFORMED NUCLEI
E2-TRANSITIONS
GROUND STATES
HARTREE-FOCK METHOD
ISOSPIN
NEON ISOTOPES
NEUTRONS
NUCLEAR DEFORMATION
NUCLEAR ELECTRIC MOMENTS
NUCLEAR FORCES
NUCLEAR MAGNETIC MOMENTS
POLARIZATION
QUADRUPOLE MOMENTS
QUADRUPOLES
SHELL MODELS
SKYRME POTENTIAL
SYMMETRY BREAKING
VIBRATIONAL STATES
WAVE FUNCTIONS