Recoil-distance lifetime measurement in 37Cl

J.C. Merdinger (1) , N. Schulz (1) , M. Toulemonde (1)

1 IReS - Institut de Recherches Subatomiques

Using the recoil-distance technique in the 27Al(12C, 2p)37Cl reaction, mean lives of (19.6 ± 3.0) ps for the 7/2 -, 3 103-keV state and (32.8 ± 2.0) ps for the 9/2-, 4 011-keV state in 37Cl have been measured. The strength of the M2 decay from the 3 103 keV level appears to be the strongest among known M2 transitions in 2s-ld nuclei. An upper limit of 0.8 ps for the feeding time in the fusion-evaporation reaction 27Al(12C, pn)37Ar was estimated from an attenuated Doppler-shift measurement.

Mots clés: nuclei with 20; nuclear energy level transitions; nuclear reactions and scattering due to nuclei of z>2

Domaines: Articles anciens; Physique Nucléaire Expérimentale [nucl-ex]

J.C. Merdinger, N. Schulz, M. Toulemonde. Recoil-distance lifetime measurement in 37Cl. Journal de Physique, 1976, 37 (1), pp.1-4. ⟨10.1051/jphys:019760037010100⟩. ⟨jpa-00208387⟩