학술논문
The most accurate determination of the 8 B half-life
Document Type
Author
Source
Exotiska nukleära system vid gränsen för existens - fysik i frontlinjen med perspektiv mot FAIR Acta Physica Polonica, Series B.. 51(3):717-723
Subject
Language
English
ISSN
15095770
0587-4254
0587-4254
Abstract
Beta decay is a primary source of information of the structure of a nucleus. An accurate measurement of the half-life of a nucleus is essential for the proper determination of the reduced Gammow-Teller transition probability B(GT). In this work, we present an experiment using a compact set-up of Si-telescope detectors to measure the half-life of the 8B nucleus. Three independent measurements have been analysed, obtaining the values 771.9(17) ms, 773.9(18) ms, and 770.9(27) ms. The value of the half-life obtained as the weighted averaged with the previous published measures is 771.17(94) ms which is a factor 3.2 of improvement in the uncertainty of the half-life.