The Cupola: Scholarship at Gettysburg College

Title

Parity Violation in Neutron Resonances in 115In

Authors

Sharon L. Stephenson, Gettysburg CollegeFollow
J D. Bowman, Los Alamos National LaboratoryFollow
J Corvi, Institute for Reference Materials and MeasurementsFollow
Bret E. Crawford, Gettysburg CollegeFollow
P P J. Delheij, TRIUMFFollow
C M. Frankle, Los Alamos National LaboratoryFollow
M IInuma, Kyoto UniversityFollow
J N. Knudsen, Los Alamos National LaboratoryFollow
L Y. Lowie, North Carolina State UniversityFollow
A Masaike, Kyoto UniversityFollow
Y Matsuda, Kyoto UniversityFollow
G E. Mitchell, North Carolina State UniversityFollow
S I. Penttila, Los Alamos National LaboratoryFollow
H Postma, Delft University of TechnologyFollow
N R. Roberson, Duke UniversityFollow
S J. Seestrom, Los Alamos National LaboratoryFollow
E I. Sharapov, Joint Institute for Nuclear ResearchFollow
H M. Shimizu, National Laboratory for High Energy PhysicsFollow
Y-F Yen, Los Alamos National LaboratoryFollow
V W. Yuan, Los Alamos National LaboratoryFollow
L Zanini, Institute for Reference Materials and Measurements

Document Type

Article

Publication Date

3-2000

Department 1

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 Γ_w=(1.30_-0.43^+0.76)×10^-7 eV.

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

Stephenson, S., Bowman, J. D., Corvi, J., Crawford, B. E., Delheij, P. P. J., Frankle, C. M., IInuma, M., Knudsen, J. N., Lowie, L. Y., Masaike, A., Masuda, Y., Matsuda, Y., Mitchell, G. E., Penttila, S. I., Postma, H., Roberson, N. R., Seestrom, S. J., Sharapov, E. I., Shimizu, H. M., Yen, Y-F., Yuan, V. W., & Zanini, L. (2000). Parity Violation in Neutron Resonances in 115In. Physical Review C, 61(045501). http://dx.doi.org/10.1103/PhysRevC.61.045501

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.