A note on the soliton picture in a Skyrme-like model

JIA Duo-Jie; ZHANG Jin-Hu; WANG Qing

doi:10.1088/1674-1137/36/9/001

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Chinese Physics C> 2012, Vol. 36> Issue(9) : 797-804 DOI: 10.1088/1674-1137/36/9/001

A note on the soliton picture in a Skyrme-like model

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Abstract：
The role of the anti-commutator term of the chiral current in a Skyrme-like model was studied associated with the symmetric Skyrmion and the nucleon properties in terms of the zero-mode quantization. It is shown that the Skyrmion is stable only when the anti-commutator term in the model has a negative coupling constant(-k²) while a QCD functional analysis gives a positive coupling constant. This implies either the coupling is negligibly small and negative, or the soliton picture for the baryons is beyond the approximation of QCD at the level of the quark loop.

References

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JIA Duo-Jie, ZHANG Jin-Hu and WANG Qing. A note on the soliton picture in a Skyrme-like model[J]. Chinese Physics C, 2012, 36(9): 797-804. doi: 10.1088/1674-1137/36/9/001

JIA Duo-Jie, ZHANG Jin-Hu and WANG Qing. A note on the soliton picture in a Skyrme-like model[J]. Chinese Physics C, 2012, 36(9): 797-804. doi: 10.1088/1674-1137/36/9/001 shu

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Received: 2011-12-21
Revised: 2012-01-12

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沈阳化工大学材料科学与工程学院沈阳 110142

A note on the soliton picture in a Skyrme-like model

Corresponding author: JIA Duo-Jie,

Corresponding author: ZHANG Jin-Hu,

Received Date: 2011-12-21
Accepted Date: 2012-01-12
Available Online: 2012-09-05

Abstract: The role of the anti-commutator term of the chiral current in a Skyrme-like model was studied associated with the symmetric Skyrmion and the nucleon properties in terms of the zero-mode quantization. It is shown that the Skyrmion is stable only when the anti-commutator term in the model has a negative coupling constant(-k²) while a QCD functional analysis gives a positive coupling constant. This implies either the coupling is negligibly small and negative, or the soliton picture for the baryons is beyond the approximation of QCD at the level of the quark loop.