ITP OpenIR  > SCI期刊论文
Du, ML; Guo, FK; Meissner, UG; Yao, DL; Meissner, UG (reprint author), Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.; Meissner, UG (reprint author), Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany.; Guo, FK (reprint author), Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Zhong Guan Cun East St 55, Beijing 100190, Peoples R China.; Yao, DL (reprint author), Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys, D-52425 Julich, Germany.; Yao, DL (reprint author), Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany.
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
Funding OrganizationDFG [DFG TRR 110] ; DFG [DFG TRR 110] ; DFG [DFG TRR 110] ; DFG [DFG TRR 110] ; NSFC [11621131001] ; NSFC [11621131001] ; NSFC [11621131001] ; NSFC [11621131001] ; Thousand Talents Plan for Young Professionals ; Thousand Talents Plan for Young Professionals ; Thousand Talents Plan for Young Professionals ; Thousand Talents Plan for Young Professionals ; CAS Key Research Program of Frontier Sciences [QYZDB-SSW-SYS013] ; CAS Key Research Program of Frontier Sciences [QYZDB-SSW-SYS013] ; CAS Key Research Program of Frontier Sciences [QYZDB-SSW-SYS013] ; CAS Key Research Program of Frontier Sciences [QYZDB-SSW-SYS013] ; CAS President's International Fellowship Initiative [2015VMA076] ; CAS President's International Fellowship Initiative [2015VMA076] ; CAS President's International Fellowship Initiative [2015VMA076] ; CAS President's International Fellowship Initiative [2015VMA076]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21477
CollectionSCI期刊论文
Corresponding AuthorDu, ML; Meissner, UG; Meissner, UG (reprint author), Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany.; Meissner, UG (reprint author), Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany.; Guo, FK (reprint author), Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Zhong Guan Cun East St 55, Beijing 100190, Peoples R China.; Yao, DL (reprint author), Forschungszentrum Julich, Inst Adv Simulat, Inst Kernphys, D-52425 Julich, Germany.; Yao, DL (reprint author), Forschungszentrum Julich, Julich Ctr Hadron Phys, D-52425 Julich, Germany.
Recommended Citation
GB/T 7714
Du, ML,Guo, FK,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, ML.,Guo, FK.,Meissner, UG.,Yao, DL.,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, ML,et al."Aspects of the low-energy constants in the chiral Lagrangian for charmed mesons".PHYSICAL REVIEW D 94.9(2016):94037.
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