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Parity violation in neutron resonances in In-115 - art. no. 045501

Authors

Stephenson, SL Bowman, JD Corvi, F Crawford, BE Delheij, PPJ Frankle, CM Iinuma, M Knudson, JN Lowie, LY Masaike, A Masuda, Y Matsuda, Y Mitchell, GE Penttila, SI Postma, H Roberson, NR Seestrom, SJ Sharapov, EI Shimizu, HM Yen, YF Yuan, VW Zanini, L

Citation

Sl. Stephenson et al., Parity violation in neutron resonances in In-115 - art. no. 045501, PHYS REV C, 6104(4), 2000, pp. 5501

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICAL REVIEW C-NUCLEAR PHYSICS

ISSN journal

05562813 → ACNP

Volume

6104

Issue

Year of publication

2000

Database

ISI

SICI code

0556-2813(200004)6104:4<5501:PVINRI>2.0.ZU;2-L

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 In-115, and statist ically significant asymmetries were observed for nine cases. An analysis tr eating the PNC matrix elements as random variables yields a weak matrix ele ment of M = (0.67(-0.12)(+0.16)) meV and a weak spreading width of Gamma(w) = (1.30(-0.43)(+0.76)) x 10(-7) eV.