Generalized positivity bounds on chiral perturbation theory
文献类型：期刊论文
| 作者 | Wang, Yu-Jia; Guo, Feng-Kun ; Zhang, Cen3,4; Zhou, Shuang-Yong
|
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2020 |
| 期号 | 7页码:214 |
| 关键词 | PION-PION SCATTERING FORM-FACTORS MESON-MESON AMPLITUDES HIGGS RENORMALIZATION CONSTRAINTS LAGRANGIANS PARAMETERS SYMMETRY |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/JHEP07(2020)214 |
| 英文摘要 | Recently, a new set of positivity bounds withtderivatives have been discovered. We explore the generic features of these generalized positivity bounds with loop amplitudes and apply these bounds to constrain the parameters in chiral perturbation theory up to the next-to-next-to-leading order. We show that the generalized positivity bounds give rise to stronger constraints on thel over bar (l) over bari constants, compared to the existing axiomatic bounds. The parameter space of the b(i) constants is constrained by the generalized positivity bounds to be a convex region that is enclosed for many sections of the total space. We also show that the improved version of these positivity bounds can further enhance the constraints on the parameters. The often used Pade unitarization method however does not improve the analyticity of the amplitudes in the chiral perturbation theory at low energies. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27330]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, Anhui, Peoples R China 2.Peng Huanwu Ctr Fundamental Theory, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yu-Jia,Guo, Feng-Kun,Zhang, Cen,et al. Generalized positivity bounds on chiral perturbation theory[J]. JOURNAL OF HIGH ENERGY PHYSICS,2020(7):214. |
| APA | Wang, Yu-Jia,Guo, Feng-Kun,Zhang, Cen,&Zhou, Shuang-Yong.(2020).Generalized positivity bounds on chiral perturbation theory.JOURNAL OF HIGH ENERGY PHYSICS(7),214. |
| MLA | Wang, Yu-Jia,et al."Generalized positivity bounds on chiral perturbation theory".JOURNAL OF HIGH ENERGY PHYSICS .7(2020):214. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。