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HK: Fachverband Hadronen und Kerne

HK 37: Nuclear Structure and Dynamics II

HK 37.6: Vortrag

Dienstag, 17. März 2009, 18:15–18:30, H-ZO 50

New beta-delayed particle emission studies — •Ricardo Domínguez-Reyes¹, Nassima Adimi², María José García Borge¹, Beltran Blank², and Luis Mario Fraile³ — ¹Instituto de Estructura de la Materia, Madrid, Spain — ²Centre d’Etudes Nucléaires de Bordeaux-Gradignan (CENBG), Bordeaux, France — ³Univ. Complutense de Madrid, Madrid, Spain

Beta delayed particle emission is a wonderfull tool to study nuclear structure near the drip-line. The main advantage of these studies is the higher detection efficiency of charged particles allowing us to characterize exotic nuclei with very low production.

New studies are motivated by the improvement of the facilities and/or the new generation of detectors.

These advances have allowed us to re-visit the beta-delayed proton and gamma emission in ³³Ar and ³²Ar with an improve proton-gamma coincidence spectrum that leads us to a better knowledge of the B(GT) distribution on a wider excitation energy range.The experiment made at IBE (GANIL) has allowed us to reassign some known p-transitions to higher excited states in ³³Cl due to good pγ coincidences.

Furthermore the β-decay of 17Ne was visited using ISOLDE’s Si-Ball, studying βp and βα processes by Time-of-Flight techniques. ToF was used to separate both processes and to beta-clean the spectra. This study will allow us to determine wich process occurs first.