Parity nonconservation in neutron capture on 113Cd

Seestrom S. J.

Bowman J. D.

Crawford B. E.

Delheij P. P. J.

Frankle C. M.

Gould C. R.

Haase D. G.

Iinuma Masataka

Knudson J. N.

Koehler P. E.

Lowie L. Y.

Masaike Akira

Masuda Yasuhiro

Matsuda Yasuyuki

Mitchell G. E.

Penttilä S. I.

Popov Yu. P.

Postma H.

Roberson N. R.

Sharapov E. I.

Shimizu Hirohiko M.

Smith D. A.

Stephenson S. L.

Yen Y. F.

Yuan V. W.

Physical Review C - Nuclear Physics

Parity nonconservation was studied for 23 p-wave resonances in 113Cd up to En = 500 eV at the LANSCE pulsed neutron source using a longitudinally polarized neutron beam and the time-of-flight method. The helicity dependence of the total neutron capture cross section was measured with an enriched 113Cd target and with a target of natural cadmium. Parity violating effects were observed for several resonances in 113Cd and 111Cd. A root-mean-square value of the parity nonconserving matrix element MJ=1 = 2.9+1.3-0.9 meV was obtained for the spin J=1 levels in the compound nucleus 114Cd. This result from the 3p-peak region of the neutron strength function is compared with the parity violation results for nuclei from the 4p-peak region.

eng

American Physical Society

Copyright (c) 1998 The American Physical Society.

[ISSN] 0556-2813

[DOI] 10.1103/PhysRevC.58.2977

[NCID] AA00773613

[DOI] http://dx.doi.org/10.1103/PhysRevC.58.2977