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 language | English |
|---|---|
| Pages (from-to) | 1629-1632 |
| Number of pages | 4 |
| Journal | Chinese Physics Letters |
| Volume | 25 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 1 2008 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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Core polarization and tensor coupling effects on magnetic moments of hypernuclei. / Yao, Jiang Ming; Lü, Hong Feng; Hillhouse, Greg; Meng, Jie.
In: Chinese Physics Letters, Vol. 25, No. 5, 01.05.2008, p. 1629-1632.Research output: Contribution to journal › Article
TY - JOUR
T1 - Core polarization and tensor coupling effects on magnetic moments of hypernuclei
AU - Yao, Jiang Ming
AU - Lü, Hong Feng
AU - Hillhouse, Greg
AU - Meng, Jie
PY - 2008/5/1
Y1 - 2008/5/1
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=46749140277&partnerID=8YFLogxK
U2 - 10.1088/0256-307X/25/5/029
DO - 10.1088/0256-307X/25/5/029
M3 - Article
VL - 25
SP - 1629
EP - 1632
JO - Chinese Physics Letters
JF - Chinese Physics Letters
SN - 0256-307X
IS - 5
ER -