Core polarization and tensor coupling effects on magnetic moments of hypernuclei

Jiang Ming Yao, Hong Feng Lü, Greg Hillhouse, Jie Meng

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Abstract

Effects of core polarization and tensor coupling on the magnetic moments in Λ 13C, Λ 17O, and Λ 41Ca 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 p Λ states from the Schmidt values are found to increase with nuclear mass number.

Original languageEnglish
Pages (from-to)1629-1632
Number of pages4
JournalChinese Physics Letters
Volume25
Issue number5
DOIs
Publication statusPublished - May 1 2008

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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