The kappa resonance in s wave pi K scatterings

	The kappa resonance in s wave pi K scatterings
	Zheng, HQ; Zhou, ZY; Qin, GY; Xiao, ZG; Wang, JJ; Wu, N; Wu N(吴宁)
刊名	NUCLEAR PHYSICS A
	2004
卷号	733 期号:3-4 页码:#REF!
关键词	pi K scatterings unitarity dispersion relations
通讯作者	Zheng, HQ (reprint author), Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
英文摘要	A new unitarization approach incorporated with chiral symmetry is established and applied to study the piK elastic scatterings. We demonstrate that the K resonance exists, if the scattering length parameter in the 1 = 1/2, J = 0 channel does not deviate much from its value predicted by chiral perturbation theory. The mass and width of the kappa resonance is found to be Mkappa = 594 +/- 79 Mev, GammaK = 724 +/- 332 MeV, obtained by fitting the LASS data up to 1430 MeV. Better determination to the pole parameters is possible if the chiral predictions on scattering lengths are taken into account. (C) 2004 Published by Elsevier B.V.
学科主题	Physics
类目[WOS]	Physics, Nuclear
收录类别	SCI
WOS记录号	WOS:000220126600004
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/227114]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Zheng, HQ,Zhou, ZY,Qin, GY,et al. The kappa resonance in s wave pi K scatterings[J]. NUCLEAR PHYSICS A,2004,733(3-4):#REF!.
APA	Zheng, HQ.,Zhou, ZY.,Qin, GY.,Xiao, ZG.,Wang, JJ.,...&吴宁.(2004).The kappa resonance in s wave pi K scatterings.NUCLEAR PHYSICS A,733(3-4),#REF!.
MLA	Zheng, HQ,et al."The kappa resonance in s wave pi K scatterings".NUCLEAR PHYSICS A 733.3-4(2004):#REF!.