Parity Violation in Neutron Resonances of 103Rh

Authors

D A. Smith, Los Alamos National LaboratoryFollow
J D. Bowman, Los Alamos National LaboratoryFollow
Bret E. Crawford, Gettysburg CollegeFollow
C A. Grossmann, North Carolina State UniversityFollow
T Haseyama, Kyoto UniversityFollow
A Masaike, Kyoto UniversityFollow
Y Matsuda, Kyoto UniversityFollow
G E. Mitchell, North Carolina State UniversityFollow
S I. Penttila, Los Alamos National LaboratoryFollow
N R. Roberson, Duke UniversityFollow
S J. Seestrom, Los Alamos National LaboratoryFollow
E I. Sharapov, Joint Institute for Nuclear ResearchFollow
Sharon L. Stephenson, Gettysburg CollegeFollow
V W. Yuan, Los Alamos National LaboratoryFollow

Document Type

Article

Publication Date

9-1999

Department 1

Physics

Abstract

Parity nonconservation (PNC) was studied in p-wave neutron resonances of ¹⁰³Rh in the neutron energy range 30 to 490 eV. The helicity dependence of the neutron total cross section of rhodium was determined by capture measurements with the time-of-flight method at the Manuel Lujan Neutron Scattering Center at the Los Alamos National Laboratory. A total of 32 p-wave resonances were studied and statistically significant longitudinal asymmetries were observed for resonances at E_n=44.5, 110.8, 321.6, and 432.9 eV. A statistical analysis treating the PNC matrix elements as random variables yields a weak spreading widthΓ_w=(1.42_-0.59^+1.21)×10^-7eV.

Copyright Note

This is the publisher's version of the work. This publication appears in Gettysburg College's institutional repository by permission of the copyright owner for personal use, not for redistribution.

Recommended Citation

Smith, D. A., Bowman, J. D., Crawford, B. E., Grossmann, C. A., Haseyama, T., Masaike, A., Matsuda, Y., Mitchell, G. E., Penttila, S. I., Roberson, N.R., Seestrom, S. J., Sharapov, E. I., Stephenson, S., & Yuan, V. W. (1999). Parity Violation in Neutron Resonances of 103Rh. Physical Review C, 60(045503). http://dx.doi.org/10.1103/PhysRevC.60.045503

Required Publisher's Statement

Copyright held by American Physical Society. First published as DA Smith et al, Parity Violation in Neutron Resonances of 103Rh, Physical Review C, 60, 045503 , doi: 10.1103/PhysRevC.60.045503.