gamma 3 pi and pi 2 gamma form factors from dynamical constituent quarks
文献类型：期刊论文
| 作者 | Li, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.; Li, XY ; Yi, LO
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2001 |
| 卷号 | 505期号:40912页码:119-124 |
| 关键词 | Chiral Perturbation-theory Vector-mesons Pion Couplings Anomalies Decays Model Pi-0 Eta Qcd |
| ISSN号 | 0370-2693 |
| 英文摘要 | We study the form factors of the low-energy anomalous pi2 gamma and gamma3 pi processes in the nonlocal chiral quark model which incorporates the momentum dependence of the dynamical quark mass and realizes correctly the chiral symmetries. The obtained slope parameter for pi2 gamma is in reasonable agreement with the direct experimental results but smaller than the ones invoking vector meson dominance. Our result for the gamma3 pi form factor interpolates. between the two extremes of theoretical approaches, with the largest one provided by the vector meson dominance and the smallest one by the Schwinger-Dyson approach. But all of them are well below the single data point available so far. This situation will hopefully be clarified by the experiments at CEBAF and CERN. (C) 2001 Elsevier Science B.V. All rights reserved. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000168525700018 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12767]  |
| 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 | Li, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.,Li, XY,Yi, LO. gamma 3 pi and pi 2 gamma form factors from dynamical constituent quarks[J]. PHYSICS LETTERS B,2001,505(40912):119-124. |
| APA | Li, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.,Li, XY,&Yi, LO.(2001).gamma 3 pi and pi 2 gamma form factors from dynamical constituent quarks.PHYSICS LETTERS B,505(40912),119-124. |
| MLA | Li, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.,et al."gamma 3 pi and pi 2 gamma form factors from dynamical constituent quarks".PHYSICS LETTERS B 505.40912(2001):119-124. |
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来源：理论物理研究所
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