Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-11-04
Phys.Rev.C83:041302,2011; Publisher-note C83:059902,2011; Phys.Rev.C83:059902,2011
Physics
Nuclear Physics
Nuclear Theory
5 pages, 5 figures; accepted for publication in Phys. Rev. C Rapid Communications
Scientific paper
10.1103/PhysRevC.83.041302 10.11
We propose a novel formulation of the Interacting Boson Model (IBM) for rotational nuclei with axially-symmetric strong deformation. The intrinsic structure represented by the potential energy surface (PES) of a given multi-nucleon system has a certain similarity to that of the corresponding multi-boson system. Based on this feature, one can derive an appropriate boson Hamiltonian as already reported. This prescription, however, has a major difficulty in rotational spectra of strongly deformed nuclei: the bosonic moment of inertia is significantly smaller than the corresponding nucleonic one. We present that this difficulty originates in the difference between the rotational response of a nucleon system and that of the corresponding boson system, and could arise even if the PESs of the two systems were identical. We further suggest that the problem can be cured by implementing $\hat{L} \cdot \hat{L}$ term into the IBM Hamiltonian, with coupling constant derived from the cranking approach of Skyrme mean-field models. The validity of the method is confirmed for rare-earth and actinoid nuclei, as their experimental rotational yrast bands are reproduced nicely.
Guo Lu
Nomura Kosuke
Otsuka Takaharu
Shimizu Noritaka
No associations
LandOfFree
Microscopic Formulation of Interacting Boson Model for Rotational Nuclei does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Microscopic Formulation of Interacting Boson Model for Rotational Nuclei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microscopic Formulation of Interacting Boson Model for Rotational Nuclei will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-145305