Direct experimental determination of the matrix element of weak NN interaction in E1 gamma transitions of Dy-161

Authors
Tsinoev, VG Cherepanov, VM Rogov, EV Vidyakin, GS Antipov, AA
Citation
Vg. Tsinoev et al., Direct experimental determination of the matrix element of weak NN interaction in E1 gamma transitions of Dy-161, PHYS ATOM N, 62(2), 1999, pp. 161-165
Citations number
22
Categorie Soggetti
Physics
Journal title
PHYSICS OF ATOMIC NUCLEI
ISSN journal
10637788 → ACNP
Volume
62
Issue
2
Year of publication
1999
Pages
161 - 165
Database
ISI
SICI code
1063-7788(199902)62:2<161:DEDOTM>2.0.ZU;2-C
Abstract
The P-odd circular polarizations for E = 74.5 and 25.6 keV El gamma transit ions in a heavily deformed Dy-161 nucleus have been measured for the first time by means of Compton polarimetry. The results are P-c = -(7.0 +/- 1.5) x 10(-5) and -(3.8 +/- 0.8) x 10(-3), respectively. For the latter transiti on, the matrix element of weak NN interaction has been estimated at [v] = 0 .60 +/- 0.13 eV, which is about seven times greater than that for the simil ar E = 59.6 keV transition in Np-237.