Document Type

Article

Publication Date

3-2000

Department

Physics

Abstract

Parity nonconservation (PNC) was studied in p-wave resonances in indium by measuring the helicity dependence of the neutron total cross section in the neutron energy range 6.0–316 eV with the time-of-flight method at LANSCE. A total of 36 p-wave neutron resonances were studied in 115In, and statistically significant asymmetries were observed for nine cases. An analysis treating the PNC matrix elements as random variables yields a weak matrix element of M=(0.67-0.12+0.16) meV and a weak spreading width of Γw=(1.30-0.43+0.76)×10-7 eV.

Required Publisher's Statement

Copyright held by American Physical Society. First published as SL Stephenson et al, Parity Violation in Neutron Resonances in 115In, Physical Review C, 61, 045501, doi: 10.1103/PhysRevC.61.045501.

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