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Guo, ZH; Sanz-Cillero, JJ; Guo, ZH (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China.
Resonance effects in pion and kaon decay constants
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordChiral Perturbation-theory Low-energy Constants One-loop Chi Pole Analysis Lattice Qcd Quark Lagrangians Amplitudes Physics Mesons
AbstractIn this article we study the impact of the lightest vector and scalar resonance multiplets in the pion and kaon decay constants up to next-to-leading order in the 1/N-C expansion, i.e., up to the one-loop level. The F-pi and F-K predictions obtained within the framework of resonance chiral theory are confronted with lattice simulation data. The vector loops (and the rho - pi pi coupling G(V) in particular) are found to play a crucial role in the determination of the chiral perturbation theory couplings L-4 and L-5 at next-to-leading order in 1/N-C. Puzzling, values of GV less than or similar to 40 MeV seem to be necessary to agree with current phenomenological results for L-4 and L-5. Conversely, a value of G(V) greater than or similar to 60 MeV compatible with standard rho - pi pi determinations turns these chiral couplings negative. However, in spite of the strong anti-correlation with L-4, the SU(3) chiral coupling F-0 remains stable all the time and stays within the range 78 similar to 86 MeV when G(V) is varied in a wide range, from 40 up to 70 MeV. Finally, we would like to remark that the leading order expressions used in this article for the eta - eta' mixing, mass splitting of the vector multiplet masses and the quark mass dependence of the rho(770) mass are found in reasonable agreement with the lattice data.
2014
ISSN1550-7998
Volume89Issue:9Pages:94024
Subject AreaPhysics
DOI10.1103/PhysRevD.89.094024
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China (NSFC) [11105038]; Natural Science Foundation of Hebei Province [A2011205093]; Doctor Foundation of Hebei Normal University [L2010B04]; Spanish Government; ERDF funds from the European Commission [FPA2010-17747, SEV-2012-0249, CSD2007-00042]; Comunidad de Madrid [HEPHACOS S2009/ESP-1473] ; National Natural Science Foundation of China (NSFC) [11105038]; Natural Science Foundation of Hebei Province [A2011205093]; Doctor Foundation of Hebei Normal University [L2010B04]; Spanish Government; ERDF funds from the European Commission [FPA2010-17747, SEV-2012-0249, CSD2007-00042]; Comunidad de Madrid [HEPHACOS S2009/ESP-1473] ; National Natural Science Foundation of China (NSFC) [11105038]; Natural Science Foundation of Hebei Province [A2011205093]; Doctor Foundation of Hebei Normal University [L2010B04]; Spanish Government; ERDF funds from the European Commission [FPA2010-17747, SEV-2012-0249, CSD2007-00042]; Comunidad de Madrid [HEPHACOS S2009/ESP-1473] ; National Natural Science Foundation of China (NSFC) [11105038]; Natural Science Foundation of Hebei Province [A2011205093]; Doctor Foundation of Hebei Normal University [L2010B04]; Spanish Government; ERDF funds from the European Commission [FPA2010-17747, SEV-2012-0249, CSD2007-00042]; Comunidad de Madrid [HEPHACOS S2009/ESP-1473]
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15756
CollectionSCI期刊论文
Corresponding AuthorGuo, ZH (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China.
Recommended Citation
GB/T 7714
Guo, ZH,Sanz-Cillero, JJ,Guo, ZH . Resonance effects in pion and kaon decay constants[J]. PHYSICAL REVIEW D,2014,89(9):94024.
APA Guo, ZH,Sanz-Cillero, JJ,&Guo, ZH .(2014).Resonance effects in pion and kaon decay constants.PHYSICAL REVIEW D,89(9),94024.
MLA Guo, ZH,et al."Resonance effects in pion and kaon decay constants".PHYSICAL REVIEW D 89.9(2014):94024.
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