NUCLEAR PHYSICS

Core Polarization and Tensor Coupling Effects on Magnetic Moments of Hypernuclei

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2008 Chinese Physical Society and IOP Publishing Ltd
, , Citation Yao Jiang-Ming et al 2008 Chinese Phys. Lett. 25 1629 DOI 10.1088/0256-307X/25/5/029

0256-307X/25/5/1629

Abstract

Effects of core polarization and tensor coupling on the magnetic moments in Λ13C, Λ17O, and Λ41Ca Λ-hypernuclei are studied by employing the Dirac equation with scalar, vector and tensor potentials. It is found that the effect of core polarization on the magnetic moments is suppressed by Λ tensor coupling. The Λ tensor potential reduces the spin-orbit splitting of pΛ states considerably. However, almost the same magnetic moments are obtained using the hyperon wavefunction obtained via the Dirac equation either with or without the A tensor potential in the electromagnetic current vertex. The deviations of magnetic moments for pΛ states from the Schmidt values are found to increase with nuclear mass number.

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10.1088/0256-307X/25/5/029