New shell model calculations for $^{40}Ar$ based on recent g-factor and lifetime measurements

K.-H. Speidel , S. Schielke , J. Leske , N. Pietralla , T. Ahn , A. Costin , O. Zell , J. Gerber (1) , P. Maier-Komor , S. J. Q. Robinson , A. Escuderos , Y.Y. Sharon , L. Zamick

1 DRS-IPHC - Département Recherches Subatomiques

We have redetermined the g factor and the lifetime of the 2₁⁺ state in 40Ar by applying the technique of alpha transfer from a carbon target to 36S beams in inverse kinematics combined with transient magnetic fields. In addition, the lifetimes of the 4₁⁺ and the 2₂⁺ states in 40Ar have been remeasured using the Doppler-shift-attenuation method (DSAM). Additional experimental details of the alpha-transfer measurements are provided. The results are discussed within the framework of new large-scale shell model calculations with both free and effective nucleon g factors

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

K.-H. Speidel, S. Schielke, J. Leske, N. Pietralla, T. Ahn, et al.. New shell model calculations for $^{40}Ar$ based on recent g-factor and lifetime measurements. Physical Review C, 2008, 78, pp.017304. ⟨10.1103/PhysRevC.78.017304⟩. ⟨in2p3-00311241⟩