Systematic study of hypernuclear magnetic moments under a perturb treatment

X. S. Wang; H. Y. Sang; H. F. Lü; J. M. Yao; H. Sagawa

doi:10.1140/epja/i2013-13101-1

Systematic study of hypernuclear magnetic moments under a perturb treatment

X. S. Wang, H. Y. Sang, H. F. Lü, J. M. Yao, H. Sagawa

SCI - Physics

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Hypernuclei ranged from light to heavy mass are systematically investigated using a relativistic mean-field (RMF) model with a novel proposed ωΛΛ tensor coupling interaction PK1-Y1. The tensor coupling effect on core polarization, and the orbital contribution to hyperon current are discussed. Contributions to the magnetic moment from pΛ and n^-1 Λ systems are found to be opposite. An expression of the magnetic moment under perturb treatment is improved with an ωΛΛ tensor coupling and the core-polarized magnetic moment μ^pol._D is found to be approximately proportional to the coupling strength g_ωN · g_ω²Λ. Selfconsistent calculations under a perturb treatment show a semi-linear relationship as μ^pol._D ~ g_ωΛ when g_ωN is fixed.

Original language	English
Article number	101
Pages (from-to)	1-6
Number of pages	6
Journal	European Physical Journal A
Volume	49
Issue number	8
DOIs	https://doi.org/10.1140/epja/i2013-13101-1
Publication status	Published - 2013 Jan 1

ASJC Scopus subject areas

Nuclear and High Energy Physics

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abstract = "Hypernuclei ranged from light to heavy mass are systematically investigated using a relativistic mean-field (RMF) model with a novel proposed ωΛΛ tensor coupling interaction PK1-Y1. The tensor coupling effect on core polarization, and the orbital contribution to hyperon current are discussed. Contributions to the magnetic moment from pΛ and n-1 Λ systems are found to be opposite. An expression of the magnetic moment under perturb treatment is improved with an ωΛΛ tensor coupling and the core-polarized magnetic moment μpol.D is found to be approximately proportional to the coupling strength gωN · gω2Λ. Selfconsistent calculations under a perturb treatment show a semi-linear relationship as μpol.D ~ gωΛ when gωN is fixed.",

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AU - Wang, X. S.

AU - Sang, H. Y.

AU - Lü, H. F.

AU - Yao, J. M.

AU - Sagawa, H.

PY - 2013/1/1

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N2 - Hypernuclei ranged from light to heavy mass are systematically investigated using a relativistic mean-field (RMF) model with a novel proposed ωΛΛ tensor coupling interaction PK1-Y1. The tensor coupling effect on core polarization, and the orbital contribution to hyperon current are discussed. Contributions to the magnetic moment from pΛ and n-1 Λ systems are found to be opposite. An expression of the magnetic moment under perturb treatment is improved with an ωΛΛ tensor coupling and the core-polarized magnetic moment μpol.D is found to be approximately proportional to the coupling strength gωN · gω2Λ. Selfconsistent calculations under a perturb treatment show a semi-linear relationship as μpol.D ~ gωΛ when gωN is fixed.

AB - Hypernuclei ranged from light to heavy mass are systematically investigated using a relativistic mean-field (RMF) model with a novel proposed ωΛΛ tensor coupling interaction PK1-Y1. The tensor coupling effect on core polarization, and the orbital contribution to hyperon current are discussed. Contributions to the magnetic moment from pΛ and n-1 Λ systems are found to be opposite. An expression of the magnetic moment under perturb treatment is improved with an ωΛΛ tensor coupling and the core-polarized magnetic moment μpol.D is found to be approximately proportional to the coupling strength gωN · gω2Λ. Selfconsistent calculations under a perturb treatment show a semi-linear relationship as μpol.D ~ gωΛ when gωN is fixed.

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Systematic study of hypernuclear magnetic moments under a perturb treatment

Abstract

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