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题名: Radiative transition processes of light vector resonances in a chiral framework
作者: Chen, YH ;  Guo, ZH ;  Zheng, HQ
刊名: PHYSICAL REVIEW D
出版日期: 2014
卷号: 90, 期号:3, 页码:34013
关键词: LOW-ENERGY CONSTANTS ;  N-C QCD ;  FORM-FACTORS ;  PERTURBATION-THEORY ;  MESON DECAYS ;  TAU-DECAY ;  MUON G-2 ;  LAGRANGIANS ;  CONSTRAINTS ;  MASS
学科分类: Physics
DOI: 10.1103/PhysRevD.90.034013
通讯作者: Guo, ZH (reprint author), Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China.
部门归属: [Chen, Yun-Hua] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ;  [Guo, Zhi-Hui] Hebei Normal Univ, Dept Phys, Shijiazhuang 050024, Peoples R China ;  [Guo, Zhi-Hui] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China ;  [Zheng, Han-Qing] Peking Univ, Dept Phys, Beijing 100871, Peoples R China ;  [Zheng, Han-Qing] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
英文摘要: Within the framework of chiral effective field theory, we study various electromagnetic processes with light vector resonances: K*(892) -> K gamma, e(+)e(-) -> K* (892)K, and the omega pi gamma* form factors. With two multiplets of vector resonances being introduced, we fit the decay widths of K*0 -> K-0 gamma, K*(+) -> K+gamma, and the pertinent measurements from the e(+)e(-) -> K*(+/-)(892)K--/+ cross sections, such as moduli and relative phases between the isoscalar and isovector components from the BABAR Collaboration, together with the omega pi form factors from the NA60, SND, and CLEO collaborations. The values of resonance couplings, masses and widths of the excited vector states rho' and phi' are then determined. The omega'-phi' mixing angle is discussed and turns out to be quite different from the ideal mixing case. Three sources of SU(3) symmetry breaking effects in the Gamma(K* -> K gamma) decays are identified and analyzed in detail.
资助者: National Natural Science Foundation of China (NSFC) [10925522, 11021092, 11105038, 11035006, CRC110]; DFG [CRC110, 11261130311]; Education Department of Hebei Province [YQ2014034]; Natural Science Foundation of Hebei Province [A2011205093]; Doctor Foundation of Hebei Normal University [L2010B04]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000341263100004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15678
Appears in Collections:理论物理所2014年知识产出 _期刊论文

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Recommended Citation:
Chen, YH,Guo, ZH,Zheng, HQ. Radiative transition processes of light vector resonances in a chiral framework[J]. PHYSICAL REVIEW D,2014,90(3):34013.
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