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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
发表期刊PHYSICAL REVIEW D
语种英语
关键词Chiral Perturbation-theory Low-energy Constants One-loop Chi Pole Analysis Lattice Qcd Quark Lagrangians Amplitudes Physics Mesons
摘要In 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
卷号89期号:9页码:94024
学科领域Physics
DOI10.1103/PhysRevD.89.094024
收录类别SCI
项目资助者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] ; 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]
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15756
专题理论物理所科研产出_SCI论文
通讯作者Guo, ZH (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China.
推荐引用方式
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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