Generalized positivity bounds on chiral perturbation theory

doi:10.1007/JHEP07(2020)214

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Generalized positivity bounds on chiral perturbation theory
	Wang, Yu-Jia ; Guo, Feng-Kun ; Zhang, Cen 3,4; Zhou, Shuang-Yong
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	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
内容类型	期刊论文
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.