Effective Theory Approach to the Skyrme Model and Application to Pentaquarks(Nuclear Physics)
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概要
- 論文の詳細を見る
The Skyrme model is reconsidered from an effective theory point of view. From the most general chiral Lagrangian up to and including terms of order p^4, N_c and δm^2 (δm≡m_s-m), new interactions, which have not been previously considered, appear upon collective coordinate quantization. We obtain the parameter set that best fits the observed low-lying baryon masses by carrying out second-order perturbative calculations with respect to δm. We calculate the masses and the decay widths of the other members of (mainly) anti-decuplet pentaquark states. The formula for the decay widths is reconsidered, and its baryon mass dependence is clarified.
- 一般社団法人日本物理学会の論文
- 2005-06-25
著者
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HARADA Koji
Department of Physics, Kyushu University
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Harada Koji
Department Of Atherosclerosis And Diabetes Division Of Internal Medicine National Cardiovascular Cen
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YAMASHITA Nao-aki
Department of Physics, Kyushu University
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MITSUNARI Yohei
Department of Physics, Kyushu University
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YAMASHITA Naoaki
Department of Physics, Saga University
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Mitsunari Yohei
Department Of Physics Kyushu University
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