6533b857fe1ef96bd12b4ce0

RESEARCH PRODUCT

Nuclear charge radii of neutron deficient titanium isotopes44Ti and45Ti

J. BillowesS. G. ZemlyanoiJussi HuikariR. MooreYu. P. GangrskyA. NieminenIain MooreJ. A. R. GriffithJuha ÄYstöH.l. ThayerPaul CampbellK. P. MarinovaG. TungateD. H. ForestKieran Flanagan

subject

PhysicsNuclear and High Energy PhysicsIsotopeMean field theoryCharge radiusNeutron numberNuclear TheoryNeutronAtomic physicsNuclear ExperimentSpectroscopyEffective nuclear chargeIon

description

Optical isotope shifts of the unstable 44,45Ti isotopes, as well as those of stable 46−50Ti, have been investigated by collinear laser spectroscopy on fast ion beams using an ion guide isotope separator with a cooler-buncher. Changes in mean square charge radii across the neutron 1f7/2 shell are deduced. The evolution of the even-N Ti nuclear radii shows a generally increasing tendency with decreasing neutron number. This behaviour is significantly different to that of the neighbouring Ca isotopes which exhibit a symmetric parabolic behaviour across the shell. The trend of the Ti nuclear radii is consistent with the predictions of the relativistic mean-field theory. The charge radius of 44Ti is also compared to predictions of a 40Ca + α cluster model.

https://doi.org/10.1088/0954-3899/30/9/009