Search for beta-delayed charged particles from the halo nucleus Be-14
Artikel i vetenskaplig tidskrift, 2002
In a search for beta-delayed charged particles from Be-14 we have obtained an upper limit on beta-delayed a particles, B(betaalpha) < 1.2 x 10(-4), and found evidence for beta-delayed tritons at intensity of 6 x 10(-5) < B(betat) < 4 x 10(-4) (both at 95% confidence level). By adding information on the beta-delayed neutron branches from direct measurements at low neutron energy and indirect detection via recoiling nuclei at high energy, and by including also information from earlier experiments, we deduce the beta strength distribution from Be-14. This differs significantly from shell-model calculations at high excitation energy. (C) 2002 Elsevier Science B.V. All rights reserved.
X)]
time distribution
DRIP-LINE
measured beta-delayed
charged particle spectra
DECAY
branching ratios
beta-delayed neutron
ISOLDE
spectra
mass separated source
Be-14(beta(-)) (beta(-)n) [from Ta(p
Si-gas telescope
analysis
EXOTIC NUCLEI
Författare
H. B. Jeppesen
U. C. Bergmann
M. J. G. Borge
J. Cederkall
V. N. Fedoseyev
H. O. U. Fynbo
V. Y. Hansper
Björn Jonson
Chalmers, Institutionen för experimentell fysik, Subatomär fysik
Karin Markenroth
Chalmers, Institutionen för experimentell fysik, Subatomär fysik
V. I. Mishin
Thomas Nilsson
Göran Hugo Nyman
Chalmers, Institutionen för experimentell fysik, Subatomär fysik
K. Riisager
O. Tengblad
Katarina Wilhelmsen Rolander
Chalmers, Institutionen för experimentell fysik, Subatomär fysik
Nuclear Physics A
0375-9474 (ISSN)
Vol. 709 119-130Ämneskategorier
Subatomär fysik
DOI
10.1016/S0375-9474(02)01093-X