Search for beta-delayed proton emission from 11 Be
Artikel i vetenskaplig tidskrift, 2020

We report on an attempt to reproduce the observation of β--delayed proton emission from 11Be through detection of the final state nucleus 10Be with accelerator mass spectrometry. Twelve samples were collected at the ISOLDE facility at CERN at different separator settings, allowing tests of different sources of contamination to be carried out. The observed amounts of 10Be per collected 11Be rule out several contamination sources, but do not agree internally. Formation of BeH molecular ions in the ion source may explain our data, in which case an upper limit of the βp branching ratio of 2.2 × 10 - 6 can be derived.

Författare

K. Riisager

Aarhus Universitet

M. Borge

CERN

CSIC - Instituto de Estructura de la Materia (IEM)

J. A. Briz

CSIC - Instituto de Estructura de la Materia (IEM)

M. Carmona-Gallardo

Universidad Complutense de Madrid

O. Forstner

Universität Wien

L. M. Fraile

Universidad Complutense de Madrid

H. O. U. Fynbo

Aarhus Universitet

A. Garzon Camacho

CSIC - Instituto de Estructura de la Materia (IEM)

Jacob G. Johansen

Aarhus Universitet

Björn Jonson

Chalmers, Fysik, Subatomär, högenergi- och plasmafysik

M. V. Lund

Aarhus Universitet

J. Lachner

Universität Wien

M. Madurga

CERN

S. Merchel

Helmholtz

E. Nacher

CSIC - Instituto de Estructura de la Materia (IEM)

Thomas Nilsson

Chalmers, Fysik

Peter Steier

Universität Wien

O. Tengblad

CSIC - Instituto de Estructura de la Materia (IEM)

V. Vedia

Universidad Complutense de Madrid

European Physical Journal A

1434-6001 (ISSN) 1434-601X (eISSN)

Vol. 56 3 100

Exotiska nukleära system vid gränsen för existens - fysik i frontlinjen med perspektiv mot FAIR

Vetenskapsrådet (VR), 2018-01-01 -- 2021-12-31.

Ämneskategorier

Fysik

DOI

10.1140/epja/s10050-020-00110-2

Mer information

Senast uppdaterat

2020-09-15