Amplitude analysis of the anomalous decay eta ' -> pi(+) pi(-) gamma

doi:10.1103/PhysRevD.97.036012

	Amplitude analysis of the anomalous decay eta ' -> pi(+) pi(-) gamma
	Yao, DL; Dai, LY; Song, XY; Song XY(宋欣颖); Kang, XW; Meissner, UG
刊名	PHYSICAL REVIEW D
	2018
卷号	97 期号:3 页码:36012
ISSN号	2470-0010
DOI	10.1103/PhysRevD.97.036012
文献子类	Article
英文摘要	In this paper we perform an amplitude analysis of eta ' -> pi(+)pi(-)gamma and confront it with the latest BESIII data. Based on the final-state interaction theorem, we represent the amplitude in terms of an Omnes function multiplied by a form factor that corresponds to the contributions from left-hand cuts and right-hand cuts in the inelastic channels. We also take into account the isospin violation effect induced by rho-omega mixing. Our results show that the anomaly contribution is mandatory in order to explain the data. Its contribution to the decay width of Gamma(eta ' -> pi pi gamma) is larger than that induced by isospin violation. Finally we extract the pole positions of the rho and omega as well as their corresponding residues.
电子版国际标准刊号	2470-0029
WOS关键词	CHIRAL PERTURBATION-THEORY ; PHASE-SHIFT ANALYSIS ; RADIATIVE WIDTH ; KLOE DETECTOR ; ONE-LOOP ; COLLISIONS ; LAGRANGIANS ; ETA'(958) ; MASS
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
WOS记录号	WOS:000424904000003
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/287018]
专题	高能物理研究所_实验物理中心
通讯作者	Song XY(宋欣颖)
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Yao, DL,Dai, LY,Song, XY,et al. Amplitude analysis of the anomalous decay eta ' -> pi(+) pi(-) gamma[J]. PHYSICAL REVIEW D,2018,97(3):36012.
APA	Yao, DL,Dai, LY,Song, XY,宋欣颖,Kang, XW,&Meissner, UG.(2018).Amplitude analysis of the anomalous decay eta ' -> pi(+) pi(-) gamma.PHYSICAL REVIEW D,97(3),36012.
MLA	Yao, DL,et al."Amplitude analysis of the anomalous decay eta ' -> pi(+) pi(-) gamma".PHYSICAL REVIEW D 97.3(2018):36012.