Physics Letters B (Oct 2014)
Sizeable beta-strength in 31Ar (β3p) decay
- G.T. Koldste,
- B. Blank,
- M.J.G. Borge,
- J.A. Briz,
- M. Carmona-Gallardo,
- L.M. Fraile,
- H.O.U. Fynbo,
- J. Giovinazzo,
- J.G. Johansen,
- A. Jokinen,
- B. Jonson,
- T. Kurturkian-Nieto,
- T. Nilsson,
- A. Perea,
- V. Pesudo,
- E. Picado,
- K. Riisager,
- A. Saastamoinen,
- O. Tengblad,
- J.-C. Thomas,
- J. Van de Walle
Affiliations
- G.T. Koldste
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
- B. Blank
- Centre d'Études Nucléaire de Bordeaux-Gradignan, CNRS/IN2P3 – Université Bordeaux I, F-33175 Gradignan Cedex, France
- M.J.G. Borge
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- J.A. Briz
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- M. Carmona-Gallardo
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- L.M. Fraile
- Grupo de Física Nuclear, Universidad Complutense, CEI Moncloa, E-28040 Madrid, Spain
- H.O.U. Fynbo
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
- J. Giovinazzo
- Centre d'Études Nucléaire de Bordeaux-Gradignan, CNRS/IN2P3 – Université Bordeaux I, F-33175 Gradignan Cedex, France
- J.G. Johansen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
- A. Jokinen
- Department of Physics, University of Jyväskylä, FIN-40351 Jyväskylä, Finland
- B. Jonson
- Fundamental Fysik, Chalmers Tekniska Högskola, S-41296 Göteborg, Sweden
- T. Kurturkian-Nieto
- Centre d'Études Nucléaire de Bordeaux-Gradignan, CNRS/IN2P3 – Université Bordeaux I, F-33175 Gradignan Cedex, France
- T. Nilsson
- Fundamental Fysik, Chalmers Tekniska Högskola, S-41296 Göteborg, Sweden
- A. Perea
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- V. Pesudo
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- E. Picado
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- K. Riisager
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
- A. Saastamoinen
- Department of Physics, University of Jyväskylä, FIN-40351 Jyväskylä, Finland
- O. Tengblad
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- J.-C. Thomas
- GANIL, CEA/DSM–CNRS/IN2P3, F-14076 Caen Cedex 5, France
- J. Van de Walle
- CERN, CH-1211 Geneva 23, Switzerland
- DOI
- https://doi.org/10.1016/j.physletb.2014.09.015
- Journal volume & issue
-
Vol. 737,
no. C
pp. 383 – 387
Abstract
We present for the first time precise spectroscopic information on the recently discovered decay mode β-delayed 3p-emission. The detection of the 3p events gives an increased sensitivity to the high energy part of the Gamow–Teller strength distribution from the decay of 31Ar revealing that as much as 30% of the strength resides in the β3p-decay mode. A simplified description of how the main decay modes evolve as the excitation energy increases in 31Cl is provided.
