1,160 research outputs found
Hartree-Fock-Bogoliubov solution of the pairing Hamiltonian in finite nuclei
We present an overview of the Hartree-Fock-Bogoliubov (HFB) theory of
nucleonic superfluidity for finite nuclei. After introducing basic concepts
related to pairing correlations, we show how the correlated pairs are
incorporated into the HFB wave function. Thereafter, we present derivation and
structure of the HFB equations within the superfluid nuclear density functional
formalism and discuss several aspects of the theory, including the unitarity of
the Bogoliubov transformation in truncated single-particle and quasiparticle
spaces, form of the pairing functional, structure of the HFB continuum,
regularization and renormalization of pairing fields, and treatment of pairing
in systems with odd particle numbers.Comment: Contributed chapter in "50 Years of Nuclear BCS", edited by R. A.
Broglia and V. Zelevinsky, references correcte
Low-energy M1 and E3 excitations in the proton-rich Kr-Zr region
Low-energy intrinsic =1, , , , and states in
the even-even proton-rich Sr, Kr, and Zr nuclei are investigated using the
quasiparticle random phase approximation. In the ZN nuclei the
lowest-lying 1 states are found to carry unusually large strength.
It is demonstrated that, unlike in the heavier nuclei, the octupole
collectivity in the light zirconium region is small and, thus, is not directly
correlated with the systematics of the lowest negative parity states.Comment: 15pages, REVTEX 3.0, JIHIR(ORNL) Document no.93-17, Postscript files
for 14 figures are available on request from T.Nakatsusaka at
[email protected]
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