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Parity violation in neutron resonances of Rh-103 - art. no. 045503

Authors

Smith, DA Bowman, JD Crawford, BE Grossmann, CA Haseyama, T Masaike, A Matsuda, Y Mitchell, GE Penttila, SI Roberson, NR Seestrom, SJ Sharapov, EI Stephenson, SL Yuan, VW

Citation

Da. Smith et al., Parity violation in neutron resonances of Rh-103 - art. no. 045503, PHYS REV C, 6004(4), 1999, pp. 5503

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW C-NUCLEAR PHYSICS

ISSN journal

05562813 → ACNP

Volume

6004

Issue

Year of publication

1999

Database

ISI

SICI code

0556-2813(199910)6004:4<5503:PVINRO>2.0.ZU;2-0

Abstract

Parity nonconservation (PNC) was studied in p-wave neutron resonances of Rh -103 in the neutron energy range 30 to 490 eV. The helicity dependence of t he neutron total cross section of rhodium was determined by capture measure ments 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 resonan ces were studied and statistically significant longitudinal asymmetries wer e observed for resonances at E-n = 44.5, 110.8, 321.6, and 432.9 eV. A stat istical analysis treating the PNC matrix elements as random variables yield s a weak spreading width Gamma(w) = (1.42(-0.59)(+1.21)) x 10(-7) eV. [S055 6-2813(99)06810-7].