ITP OpenIR  > SCI期刊论文
Du, MengLin; Guo, FengKun; Meissner, UG; Yao, DL
Aspects of the low-energy constants in the chiral Lagrangian for charmed mesons
Source PublicationPHYSICAL REVIEW D
Language英语
AbstractWe investigate the numerical values of the low-energy constants in the chiral effective Lagrangian for the interactions between the charmed mesons and the lightest pseudoscalar mesons, the Goldstone bosons of the spontaneous breaking of chiral symmetry for QCD. This problem is tackled from two sides: estimates using the resonance-exchange model and positivity constraints from the general properties of the S-matrix including analyticity, crossing symmetry, and unitarity. These estimates and constraints are compared with the values determined from fits to lattice data of the scattering lengths. Tensions are found, and possible reasons are discussed. We conclude that more data from lattice calculations and experiments are necessary to fix these constants better. As a byproduct, we also estimate the coupling constant g(DDa2), with a(2) the light tensor meson, via the QCD sum rule approach.
2016
Volume94Issue:9Pages:94037
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.94.094037
Indexed BySCI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21477
CollectionSCI期刊论文
Corresponding AuthorDu, MengLin; Guo, FengKun; Meissner, UG; Yao, DL
Recommended Citation
GB/T 7714
Du, MengLin,Guo, FengKun,Meissner, UG,et al. Aspects of the low-energy constants in the chiral Lagrangian for charmed mesons[J]. PHYSICAL REVIEW D,2016,94(9):94037.
APA Du, MengLin,Guo, FengKun,Meissner, UG,&Yao, DL.(2016).Aspects of the low-energy constants in the chiral Lagrangian for charmed mesons.PHYSICAL REVIEW D,94(9),94037.
MLA Du, MengLin,et al."Aspects of the low-energy constants in the chiral Lagrangian for charmed mesons".PHYSICAL REVIEW D 94.9(2016):94037.
Files in This Item:
File Name/Size DocType Version Access License
Aspects of the low-e(492KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Du, MengLin]'s Articles
[Guo, FengKun]'s Articles
[Meissner, UG]'s Articles
Baidu academic
Similar articles in Baidu academic
[Du, MengLin]'s Articles
[Guo, FengKun]'s Articles
[Meissner, UG]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Du, MengLin]'s Articles
[Guo, FengKun]'s Articles
[Meissner, UG]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.