The most accurate determination of the 8B half-life
Journal article, 2020
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.
Author
S. Viñals
Spanish National Research Council (CSIC)
E. Nacher
Spanish National Research Council (CSIC)
Universitat de Valencia
O. Tengblad
Spanish National Research Council (CSIC)
J. Benito
Complutense University
M. Borge
Spanish National Research Council (CSIC)
P. Figuera
National Institute for Nuclear Physics
L. M. Fraile
Complutense University
H. O. U. Fynbo
Aarhus University
A. Gad
Aarhus University
J. H. Jensen
Aarhus University
Björn Jonson
Chalmers, Physics, Subatomic, High Energy and Plasma Physics
R. Lica
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
I. Marroquin
Spanish National Research Council (CSIC)
M. Munch
Aarhus University
Thomas Nilsson
Chalmers, Physics
J. D. Ovejas
Spanish National Research Council (CSIC)
A. Perea
Spanish National Research Council (CSIC)
K. Riisager
Aarhus University
S. Smain
CERN
C. Sotty
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
Acta Physica Polonica, Series B.
0587-4254 (ISSN) 15095770 (eISSN)
Vol. 51 3 717-723Exotiska nukleära system vid gränsen för existens - fysik i frontlinjen med perspektiv mot FAIR
Swedish Research Council (VR) (2017-03839), 2018-01-01 -- 2021-12-31.
Subject Categories (SSIF 2011)
Subatomic Physics
Physical Sciences
Roots
Basic sciences
DOI
10.5506/APhysPolB.51.717