6533b855fe1ef96bd12b1ab2

RESEARCH PRODUCT

High spin shell model excitations in149Gd

E. HammarénN. RoyTh. LindbladM. PiiparinenH. RydeR. PengoJ. BlomqvistLars CarlénP. KleinheinzY. NagaiS.a. HjorthA. Johnson

subject

PhysicsNuclear and High Energy PhysicsRange (particle radiation)SHELL modelNuclear fusionLevel structureAtomic physicsSpin (physics)Electron spectroscopy

description

The high spin level structure of the three-neutron nucleus149Gd has been investigated by in-beamγ-ray and electron spectroscopy with (α, xn) reactions. The observed levels are characterized as members of the shell model multipletsνf 7 2/3 ,νh 9/2 f 7 2/2 ,νf 7 2/3 ×3−,νh 9/2 f 7 2/2 ×3−, and tentativelyνf 7 2/3 ×(3−)2. The energies of theν f 7 2/3 states agree only moderately with those calculated using empirical two-nucleon interactions taken from148Gd, which indicates the importance of long range contributions already atN=85.

https://doi.org/10.1007/bf01412290