The most accurate determination of the 8B half-life
Artikel i vetenskaplig tidskrift, 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.
Författare
S. Viñals
Consejo Superior de Investigaciones Científicas (CSIC)
E. Nacher
Consejo Superior de Investigaciones Científicas (CSIC)
Universitat de Valencia
O. Tengblad
Consejo Superior de Investigaciones Científicas (CSIC)
J. Benito
Universidad Complutense de Madrid
M. Borge
Consejo Superior de Investigaciones Científicas (CSIC)
P. Figuera
Istituto Nazionale di Fisica Nucleare
L. M. Fraile
Universidad Complutense de Madrid
H. O. U. Fynbo
Aarhus Universitet
A. Gad
Aarhus Universitet
J. H. Jensen
Aarhus Universitet
Björn Jonson
Chalmers, Fysik, Subatomär, högenergi- och plasmafysik
R. Lica
Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering
I. Marroquin
Consejo Superior de Investigaciones Científicas (CSIC)
M. Munch
Aarhus Universitet
Thomas Nilsson
Chalmers, Fysik
J. D. Ovejas
Consejo Superior de Investigaciones Científicas (CSIC)
A. Perea
Consejo Superior de Investigaciones Científicas (CSIC)
K. Riisager
Aarhus Universitet
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
Vetenskapsrådet (VR) (2017-03839), 2018-01-01 -- 2021-12-31.
Ämneskategorier (SSIF 2011)
Subatomär fysik
Fysik
Fundament
Grundläggande vetenskaper
DOI
10.5506/APhysPolB.51.717