Be-11(beta p), a quasi-free neutron decay?
Artikel i vetenskaplig tidskrift, 2014
We have observed beta(-)-delayed proton emission from the neutron-rich nucleus Be-11 by analyzing a sample collected at the ISOLDE facility at CERN with accelerator mass spectrometry (AMS). With a branching ratio of (8.3 +/- 0.9). 10(-6) the strength of this decay mode, as measured by the B-GT-value, is unexpectedly high. The result is discussed within a simple single-particle model and could be interpreted as a quasi-free decay of the Be-11 halo neutron into a single-proton state.
Halo nucleus
Be-11
Beta decay
Författare
K. Riisager
O. Forstner
M. J. G. Borge
J. A. Briz
M. Carmona-Gallardo
L. M. Fraile
H. O. U. Fynbo
T. Giles
A. Gottberg
Andreas Martin Heinz
Chalmers, Fundamental fysik
J. G. Johansen
Björn Jonson
Chalmers, Fundamental fysik
J. Kurcewicz
M. V. Lund
Thomas Nilsson
Chalmers, Fundamental fysik
Göran Hugo Nyman
Chalmers, Fundamental fysik
E. Rapisarda
P. Steier
O. Tengblad
Ronja Thies
Chalmers, Fundamental fysik
S. R. Winkler
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
0370-2693 (ISSN)
Vol. 732 305-308Ämneskategorier
Subatomär fysik
Fysik
Fundament
Grundläggande vetenskaper
DOI
10.1016/j.physletb.2014.03.062