Empirical investigation of extreme single-particle behavior of nuclear quadrupole moments in highly collective A similar to 150 superdeformed bands -art. no. 172503

Clark, ST Hackman, G Janssens, RVF Clark, RM Fallon, P Floor, SN Lane, GJ Macchiavelli, AO Norris, J Sanders, SJ Svensson, CE

St. Clark et al., Empirical investigation of extreme single-particle behavior of nuclear quadrupole moments in highly collective A similar to 150 superdeformed bands -art. no. 172503, PHYS REV L, 8717(17), 2001, pp. 2503

23

INGLESE

Article

Physics

PHYSICAL REVIEW LETTERS

0031-9007 → ACNP

8717

17

2001

ISI

0031-9007(20011022)8717:17<2503:EIOESB>2.0.ZU;2-X

The intrinsic quadrupole moment Q(0) of superdeformed rotational bands in A similar to 150 nuclei depends on the associated single-particle configurat ion. We have derived an empirical formula based on the additivity of effect ive quadrupole moments of single-particle orbitals that describes existing measurements from Sm-142 to Dy-152. To further test the formula, the predic ted Q(0) moments for two superdeformed bands in Gd-146 of 14.05 eb were con fronted with a new measurement yielding 13.9 +/- 0.4 eb and 0.9 +/- 0.3 eb, respectively. This excellent agreement provides empirical evidence of extr eme single-particle behavior in highly deformed, collective systems.