/ Theory-Nucl nucl-th/0104076


Quasideuteron states with deformed core


Lisetskiy, A.F. (Cologne U.) ; Gelberg, A. (Cologne U.) ; Jolos, R.V. (Dubna, JINR) ; Pietralla, N. (Yale U.) ; von Brentano, P. (Cologne U.)

Published in: Phys.Lett.
Year: 2001
Vol.: B512
Page No: 290-296
Pages: 11

Abstract: The M1 transitions between low-lying T=1 and T=0 states in deformed odd-odd N=Z nuclei are analyzed in the frames of the rotor-plus-particle model. Using the representation of an explicit coupling of angular momenta we show that strong coupling of the quasideuteron configurations to the axially deformed core results in a distribution of the total 0+ --> 1+ strength among a few low-lying 1+ states. Simple analytical formulae for B(M1) values are derived. The realization of the M1 sum rule for the low-lying 1+,T=0 states is indicated. The calculated B(M1) values are found to be in good agreement with experimental data and reveal specific features of collectivity in odd-odd N=Z nuclei.

Web-Page: http://www.adsabs.harvard.edu/abs/2001PhLB..512..290L; http://alice.cern.ch/format/showfull?sysnb=2252074; http://dx.doi.org/10.1016/S0370-2693(01)00685-2; http://www.sciencedirect.com/science?_ob=GatewayURL&_origin=SPIRES&_method=citationSearch&_volkey=03702693%23512%23290&_version=1&md5=f5e83556919b74ac4a1feb2632c56053

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