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

CSIC - Instituto de Estructura de la Materia (IEM)

E. Nacher

Universitat de Valencia

CSIC - Instituto de Estructura de la Materia (IEM)

O. Tengblad

CSIC - Instituto de Estructura de la Materia (IEM)

J. Benito

Complutense University

M. Borge

CSIC - Instituto de Estructura de la Materia (IEM)

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

CSIC - Instituto de Estructura de la Materia (IEM)

M. Munch

Aarhus University

Thomas Nilsson

Chalmers, Physics

J. D. Ovejas

CSIC - Instituto de Estructura de la Materia (IEM)

A. Perea

CSIC - Instituto de Estructura de la Materia (IEM)

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)

Vol. 51 3 717-723

Subject Categories

Physical Sciences

DOI

10.5506/APhysPolB.51.717

More information

Latest update

8/12/2020