pi NN and pi NN(1535) couplings in QCD
文献类型：期刊论文
| 作者 | Zhu, SL; Hwang, WYP; Dai, YB ; Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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| 刊名 | PHYSICAL REVIEW C
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| 出版日期 | 1999 |
| 卷号 | 59期号:1页码:442-450 |
| 关键词 | Sum-rules Magnetic-moments Baryon Masses Wave-function Resonance Physics Model |
| ISSN号 | 0556-2813 |
| 英文摘要 | We study the two point correlation function of two nucleon currents sandwiched between the vacuum and the pion state. The light cone QCD sum rules are derived for the pi NN coupling g(pi NN) and the pi NN(1535) coupling g(pi NN*). The contribution from the excited states and die continuum is subtracted cleanly through the double Borel transform with respect to the two external momenta p(1)(2), p(2)(2)=(p-q)(2). We first improve the original sum rule for g(pi NN) and determine the value of the pion wave function phi(pi)(u(0) = 1/2) = 1.5+/-0.2, which is a fundamental nonperturbative quantity similar to the quark condensate. Our calculation shows that the pi NN(1535) coupling is strongly suppressed. [S0556-2813(99)00301-5]. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000078111400049 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12210]  |
| 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 | Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhu, SL,Hwang, WYP,Dai, YB,et al. pi NN and pi NN(1535) couplings in QCD[J]. PHYSICAL REVIEW C,1999,59(1):442-450. |
| APA | Zhu, SL,Hwang, WYP,Dai, YB,&Zhu, SL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(1999).pi NN and pi NN(1535) couplings in QCD.PHYSICAL REVIEW C,59(1),442-450. |
| MLA | Zhu, SL,et al."pi NN and pi NN(1535) couplings in QCD".PHYSICAL REVIEW C 59.1(1999):442-450. |
入库方式： OAI收割
来源：理论物理研究所
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