S wave K pi scattering and effects of kappa in J/psi ->(K)over-bar*(0)(892)K+pi(-)

doi:10.1016/j.nuclphysa.2006.04.008

	*S wave K pi scattering and effects of kappa in J/psi ->(K)over-bar(0)(892)K+pi(-)**
	Guo, F-K.; Ping, R. -G.; Shen, P. -N.; Chiang, H. -C.; Zou, B. -S.
刊名	NUCLEAR PHYSICS A
	2006-07-10
卷号	773 页码:78-94
关键词	chiral perturbation theory Bethe-Salpeter equation K pi scattering final state interaction
ISSN号	0375-9474
DOI	10.1016/j.nuclphysa.2006.04.008
英文摘要	K pi S wave scattering is studied using a chiral unitary approach (ChUT) taking into account coupled channels. With the amplitudes derived from the lowest order chiral Lagrangian as the kernel of a set of coupled channel Bathe-Salpeter equations, the I = 1/2 S wave K pi scattering phase shifts below 1.2 GeV can be fitted by one parameter, a subtraction constant, and a scalar resonance corresponding to the controversial K (K-0() (800)) can be generated dynamically. A good description of the I = 3/2 S wave K pi scattering phase 0 shifts below 1.2 GeV can also be obtained. An artificial singularity in the cut-off method of the 2-meson loop integral of the ChUT is found. The formalism is applied to deal with the S wave K pi final state interaction (FSI) in the decay J/psi ->(K) over bar (0)(892)K+pi(-), and a qualitatively good fit to the data is achieved. The role Of K in the decay is discussed. (c) 2006 Elsevier B.V. All rights reserved.
WOS关键词	CHIRAL PERTURBATION-THEORY ; BETHE-SALPETER APPROACH ; KPI SCATTERING ; SCALAR MESONS ; ONE-LOOP ; FORM-FACTORS ; RESONANCES ; DECAYS ; SIGMA ; LAGRANGIANS
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000238893200004
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/26384]
专题	中国科学院近代物理研究所
通讯作者	Guo, F-K.
作者单位	1.CCAST, World Lab, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 3.SW Univ, Chongqing 400715, Peoples R China 4.Chinese Acad Sci, Inst Theoret Phys, Beijing 100864, Peoples R China 5.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China 6.Grad Univ Beijing, Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Guo, F-K.,Ping, R. -G.,Shen, P. -N.,et al. S wave K pi scattering and effects of kappa in J/psi ->(K)over-bar*(0)(892)K+pi(-)[J]. NUCLEAR PHYSICS A,2006,773:78-94.
APA	Guo, F-K.,Ping, R. -G.,Shen, P. -N.,Chiang, H. -C.,&Zou, B. -S..(2006).S wave K pi scattering and effects of kappa in J/psi ->(K)over-bar*(0)(892)K+pi(-).NUCLEAR PHYSICS A,773,78-94.
MLA	Guo, F-K.,et al."S wave K pi scattering and effects of kappa in J/psi ->(K)over-bar*(0)(892)K+pi(-)".NUCLEAR PHYSICS A 773(2006):78-94.