Spin polarizability of the nucleon in the effective field theory of heavy baryon
文献类型：期刊论文
| 作者 | Kumar, K. B. Vijaya; Ma, Yong-Liang; Wu, Yue-Liang ; Kumar, KBV , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS A
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| 出版日期 | 2006 |
| 卷号 | 21期号:19-20页码:3947-3966 |
| 关键词 | Hidden Local Symmetry One-loop Analysis Ub-vertical-bar/ Magnetic Moments Low Energies Sum Rule Hqeft Decay Meson Qcd |
| ISSN号 | 0217-751X |
| 英文摘要 | We have constructed a heavy baryon effective field theory with photon as an external field in accordance with the symmetry requirements similar to the heavy quark effective field theory. By treating the heavy baryon and antibaryon equally on the same footing in the effective field theory, we have calculated the spin polarizabilities gamma(i), i = 1,...,4 of the nucleon at third order and at fourth-order of the spin-dependent Compton scattering. At leading order (LO), our results agree with the corresponding results of the heavy baryon chiral perturbation theory, at the next-to-leading order (NLO) the results show a large correction to the ones in the heavy baryon chiral perturbation theory due to baryon-antibaryon coupling terms. The low-energy theorem is satisfied both at LO and at NLO. The contributions arising from the heavy baryon-antibaryon vertex were found to be significant and the results of the polarizabilities obtained from our theory is much closer to the experimental data. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000240322800003 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5929]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Kumar, KBV , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kumar, K. B. Vijaya,Ma, Yong-Liang,Wu, Yue-Liang,et al. Spin polarizability of the nucleon in the effective field theory of heavy baryon[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS A,2006,21(19-20):3947-3966. |
| APA | Kumar, K. B. Vijaya,Ma, Yong-Liang,Wu, Yue-Liang,&Kumar, KBV , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2006).Spin polarizability of the nucleon in the effective field theory of heavy baryon.INTERNATIONAL JOURNAL OF MODERN PHYSICS A,21(19-20),3947-3966. |
| MLA | Kumar, K. B. Vijaya,et al."Spin polarizability of the nucleon in the effective field theory of heavy baryon".INTERNATIONAL JOURNAL OF MODERN PHYSICS A 21.19-20(2006):3947-3966. |
入库方式： OAI收割
来源：理论物理研究所
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