g factors of the 9- and 12+ isomeric states in 200Pb

Young, L. E. ; Bhattacherjee, S. K. ; Brenn, R. ; Brown, B. A. ; Fossan, D. B. ; Sprouse, G. D. (1975) g factors of the 9- and 12+ isomeric states in 200Pb Physical Review C, 12 (4). pp. 1242-1246. ISSN 0556-2813

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Official URL: http://prc.aps.org/abstract/PRC/v12/i4/p1242_1

Related URL: http://dx.doi.org/10.1103/PhysRevC.12.1242


The g factors of the 9- state (2.236 MeV, t=694 nsec) and the 12+ state (~3.1 MeV, t=228 nsec) in 200Pb have been measured as g(9-)=-0.030(3) and g(12+)=-0.157(6) by a time-differential perturbed-angular-distribution technique. The states were populated by 197Au(7Li, 4n)200Pb(9-) and 197Au(7Li, 3n)200Pb(12+) reactions with pulsed lithium beams. An in-beam superconducting magnet supplied a field of ~60 kG. The 9- state g factor is in agreement with the additivity value obtained from empirical single-particle g factors for a (i13/2-1, f5/2-1)9- configuration and consistent with a small anomalous orbital contribution δgl for the neutron. The g factor for the 12+ state in 200Pb is in surprisingly good agreement with those for the (i13/2)-212+ state in 206Pb and the i13/2-1 state in 205Pb, in view of the possible existence of number-dependent effects.

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