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Energy dependence of the beta asymmetry in the decay of 8Li
Affiliation:1. Nutritional and Industrial Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan 200002, Nigeria;2. Department of Biochemistry, College of Sciences, Afe Babalola University, Ado Ekiti 360001, Nigeria;1. Department of Physics, Pukyong National University, Busan 48513, Republic of Korea;2. Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk 37673, Republic of Korea;3. Departemen Fisika, FMIPA, Universitas Indonesia, Kampus UI Depok 16424, Indonesia;4. Universidade Cidade de Sao Paulo (UNICID) and Universidade Cruzeiro do Sul, 01506-000, São Paulo, SP, Brazil;1. Institut für Festkörperphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany;2. Faculty of Mathematics and Computer Science, University of Warmia and Mazury in Olsztyn, Sloneczna 54, PL-10-710 Olsztyn, Poland;1. National High Magnetic Field Laboratory, University of Florida, Gainesville, FL, USA;2. Paul Scherrer Institute, CH-5232 Villigen, Switzerland;3. Rutherford Appleton Laboratory, Chilton OX11 0QX, United Kingdom;1. Paul Scherrer Institute, CH-5232 Villigen, Switzerland;2. National High Magnetic Field Laboratory, University of Florida, Gainesville, FL, USA
Abstract:The energy dependence of the asymmetry in the beta decay of 8 Li to the first excited state of 8Be has been measured. Expectations based on the conserved-vector-current hypothesis and the spherical shell model are in good agreement with the measured asymmetry for beta energies above ∼5 MeV. No second class currents are needed to explain the data but the present experiment is not a very sensitive test.
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