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. 732 305-308

Ämneskategorier

Subatomär fysik

Fysik

Fundament

Grundläggande vetenskaper

DOI

10.1016/j.physletb.2014.03.062