T. Koldste, G.11; Blank, B.2; J. G. Borge, M.3; A. Briz, J.3; Carmona-Gallardo, M.3; M. Fraile, L.4; O. U. Fynbo, H.11; Giovinazzo, J.5; Johansen, Jacob S.12; Jokinen, A.7; Jonson, B.8; Kurturkian-Nieto, T.2; Nilsson, T.8; Perea, A.3; Pesudo, V.3; Picado, E.3; Riisager, K.11; Saastamoinen, A.7; Tengblad, O.3; -C. Thomas, J.9; Van de Walle, J.10
1 Department of Physics and Astronomy, Science and Technology, Aarhus University2 Centre d'Études Nucléaire de Bordeaux-Gradignan, CNRS, IN2P3-Université Bordeaux i3 CSIS4 CEI Moncloa5 unknown6 Department of Clinical Medicine - The Department of Oncology, Department of Clinical Medicine, Health, Aarhus University7 University of Jyväskylä8 Chalmers Tekniska Högskola9 GANIL, CEA/DSM-CNRS/IN2P310 CERN11 Department of Physics and Astronomy, Science and Technology, Aarhus University12 Department of Clinical Medicine - The Department of Oncology, Department of Clinical Medicine, Health, Aarhus University
We present for the first time precise spectroscopic information on the recently discovered decay mode beta-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 beta-3p decay mode. A simplified description of how the main decay modes evolve as the excitation energy increases in 31Cl is provided.
Physics Letters. Section B: Nuclear, Elementary Particle and High-energy Physics, 2014, Vol 737, p. 383-387