Radiative transition processes of light vector resonances in a chiral framework

	Radiative transition processes of light vector resonances in a chiral framework
	陈云华;Chen, YH; Guo, ZH; Zheng, HQ
刊名	PHYSICAL REVIEW D
	2014
卷号	90 期号:3 页码:34013
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 K0 -> 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.
学科主题	Astronomy & Astrophysics; Physics
收录类别	SCI
WOS记录号	WOS:000341263100004
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225283]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	陈云华；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.
APA	陈云华；Chen, YH,Guo, ZH,&Zheng, HQ.(2014).Radiative transition processes of light vector resonances in a chiral framework.PHYSICAL REVIEW D,90(3),34013.
MLA	陈云华；Chen, YH,et al."Radiative transition processes of light vector resonances in a chiral framework".PHYSICAL REVIEW D 90.3(2014):34013.