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Journal de Physique Lettres 41, 19 (1980) 459-461
The y activity from 11Li beta decay
C. Détraz1, D. Guillemaud1, M. Langevin1, F. Naulin1, M. Epherre2, R. Klapisch2, M. De Saint-Simon2, C. Thibault2, F. Touchard2

The energies and absolute intensities of the γ-rays from the β-decay of 11Li are measured. There is no sizable β branch to the 11Be ground state. Only (5.2 ± 1.4) % of the β-decay strength does not lead to β-delayed particle emission. New β-delayed neutron branches to excited states of 10Be are observed and the total delayed neutron emission probability is deduced.
1 :  IPNO - Institut de Physique Nucléaire d'Orsay
2 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Physique/Articles anciens

Physique/Physique Nucléaire Expérimentale
beta decay – delayed neutrons – gamma ray spectra – nuclear branching and mixing ratios – nuclei with mass number 6 to 19 – gamma activity – sup 11 Li beta decay – beta branch – sup 11 Be ground state – beta delayed neutron branches – excited states – sup 10 Be – total delayed neutron emission probability
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