β-decay measurements of 12B with Gammasphere
1 Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
2 Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark
3 Laboratorio Tandar, Comisión Nacional de Energía Atómica, B1650KNA Buenos Aires, Argentina
4 Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
5 Physics Department, Western Michigan University, Kalamazoo, MI 49008, USA
6 Department of Astronomy and Astrophysics, University of Chicago, Chicago, IL 60637, USA
7 Joint Institute for Nuclear Astrophysics, Chicago, IL 60637, USA
a e-mail: email@example.com
b Present address: Marshall Space Flight Center, Huntsville, Alabama 35811, USA
c Present address: Physics Department, University of Notre Dame, Notre Dame, Illinois 46556, USA
Published online: 20 March 2014
The β−decay branching ratio of 12B to the Hoyle state in 12C was measured by detection of γ rays. 12B nuclei were produced via the 11B(d,p)12B reaction in inverse kinematics on a TiD2 target. The present results corroborate those obtained recently for the β branch by implantation. The value from both experiments is inconsistent with that accepted in the literature.
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