Lifetime measurement in the proton-unbound nucleus [sup 109]I
M. G. ProcterNuclear PhysicsD. M. CullenNuclear PhysicsP. RuotsalainenC. ScholeyL. AngusT. BäckB. CederwallΑ. DewaldC. FransenT. GrahnP. T. GreenleeshDepartment of Technical Physics, Peking University, Beijing 100871, ChinaM. HacksteinU. JakobssonPeter G. JonesR. JulinS. JuutinenS. KetelhutM. LeinoN. M. LumleyPaolo MasonP. NieminenMay NymanJ. PakarinenTh. PissullaP. PeuraP. RahkilaJ. P. RevillS. V. RigbyW. RotherM. SandzeliusJ. SarénJ. SorriM. J. TaylorJ. UusitaloP. WadyChong QiF. R. XuΒ. Blank
ABI
Abstract
The Recoil‐Distance Doppler‐shift method has been combined with Recoil‐Decay Tagging for the first time to measure a lifetime in the proton‐unbound nucleus 109I. The lifetime value was determined using the Differential Decay‐Curve method in singles mode. The result has been compared to theoretical shell‐model calculations in order to better understand the nature of unbound valence nucleons at the proton drip line.
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