Beta-delayed proton and alpha emission in the decay of 17Ne |
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| Affiliation: | 1. Instituto de Quimica-Fisica Rocasolano, CSIC, Madrid, Spain;2. Department of Physics, Chalmers University of Technology, Göteborg, Sweden;3. EP-Division, CERN, Geneva, Switzerland;4. Institute of Physics, University of Aarhus, Aarhus, Denmark;1. Technische Universität Darmstadt, Department of Physics, D–64289 Darmstadt, Germany;2. GSI Helmholtzzentrum für Schwerionenforschung GmbH, D–64291 Darmstadt, Germany;3. Instituto Galego de Física de Altas Enerxias, Universidade de Santiago de Compostela, ES–15782 Santiago de Compostela, Spain;4. Helmholtz Research Academy Hesse for FAIR, D–64289 Darmstadt, Germany;5. Texas A&M University-Commerce, Commerce, USA;6. Instituto de Estructura de la Materia, CSIC, ES–28006 Madrid, Spain;7. Department of Physics, University of Liverpool, Liverpool L69 3BX, United Kingdom;8. NRC Kurchatov Institute, RU–123182 Moscow, Russia;9. Department of Physics, Chalmers Tekniska Högskola, SE–41296 Göteborg, Sweden;10. Goethe Universität Frankfurt, Department of Physics, D–60438 Frankfurt am Main, Germany;11. Grupo de Física Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, ES–28040 Madrid, Spain;12. Department of Physics and Astronomy, University of Aarhus, DK–8000 Aarhus, Denmark;13. Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, D–55122 Mainz, Germany;14. Instytut Fizyki, Uniwersytet Jagelloński, PL–30-059 Krakóv, Poland;15. Instytut Fizyki im. Mariana Smoluchowskiego UJ, ul. Prof. St. Łojasiewicza 11, PL–30-348 Krakóv, Poland;p. Physik-Department E12, Technische Universität München, D–85748 Garching, Germany;q. Nuclear Physics Group, STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, United Kingdom;r. Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, India;1. School of Physics, State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China;2. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;3. School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China;4. Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126, Napoli, Italy;5. Dipartimento di Matematica e Fisica, Università degli Studi della Campania “Luigi Vanvitelli”, viale Abramo Lincoln 5, I-81100 Caserta, Italy |
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| Abstract: | The beta-delayed proton and alpha spectra from 17Ne have been studied with Si-detectors. The Gamow-Teller strength in the decay of 17Ne has been extracted and compared with a two-particle-one-hole shell-model calculation. The experimental strength is quenched by a factor of 0.82 with respect to the calculated one. Furthermore, the decay scheme has been improved and is discussed in some detail. The proton emitting levels in 17F are very broad and the line shapes are strongly influenced by phase-space effects. Interference between peaks corresponding to the same intermediate spin is a prominent feature emerging clearly with the good resolution and statistics of the present work. |
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