Measurement of the Angular Correlation Parameters in the BETA Decay of Polarized. Lambda. Hyperons
Author | : |
Publisher | : |
Total Pages | : |
Release | : 1977 |
ISBN-10 | : OCLC:1065873522 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Measurement of the Angular Correlation Parameters in the BETA Decay of Polarized. Lambda. Hyperons written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Final results are presented from an experimental investigation of the .beta. decay of polarized .lambda. hyperons with a large-aperture magnetic spectrometer. The data sample consists of 544 events. The values A/sub .nu./ = 0.72 +- 0.12, A/sub e/ = 0.05 +- 0.12, and A/sub p/ = -0.47 +- 0.12 are obtained for the three spin asymmetry parameters, and A/sub e.nu./ = 0.07 +- 0.12 for the electron-neutrino correlation. The lepton-plane correlation with the .lambda. spin, D = 0.11 +- 0.20, is consistent with no violation of time reversal invariance. The data yield an axial vector to vector form factor ratio of g1/f1 = 0.53/sub -0.09//sup +0.11/. The Cabibbo model value is g1/f1 = 0.71.