8,985 research outputs found
Non-axial Octupole Deformations of N=Z Nuclei in Mass Region
By performing a fully three dimensional Hartree-Fock calculation with use of
the Skyrm forces, we demonstrate possibility of exotic deformations violating
both the reflection and the axial symmetries of N=Z nuclei in
mass region. The \Ytwo tetrahedral shape predicted in excited \Zr arises from a
shell gap at which is enhanced for the tetrahedron deformation.
Softness toward the \Ythree triangular deformation of the oblate state in \Se
is also predicted.Comment: 10 page
Continuum Coupling and Pair Correlation in Weakly Bound Deformed Nuclei
We formulate a new Hartree-Fock-Bogoliubov method applicable to weakly bound
deformed nuclei using the coordinate-space Green's function technique. An
emphasis is put on treatment of quasiparticle states in the continuum, on which
we impose the correct boundary condition of the asymptotic out-going wave. We
illustrate this method with numerical examples.Comment: 5 pages, 4 figures, Proceedings of the Japanese French Symposium -
New paradigms in Nuclear Physics, Paris, 29th September - 2nd October, to be
published in Int. J. of Modern Physics
Representation Theory of The Algebra
We review the recent development in the representation theory of the
algebra. The topics that we concern are, Quasifinite
representation, Free field realizations, (Super) Matrix Generalization,
Structure of subalgebras such as algebra, Determinant formula,
Character formula. (Invited talk at ``Quantum Field Theory, Integrable Models
and Beyond", YITP, 14-17 February 1994. To appear in Progress of Theoretical
Physics Proceedings Supplement.)Comment: 36 pages, LaTeX, RIMS-990, YITP/K-1087, YITP/U-94-25, SULDP-1994-
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