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题名: S wave K pi scattering and effects of kappa in J/psi ->(K)over-bar*(0)(892)K+pi(-)
作者: Guo, F-K. ;  Ping, R. -G. ;  Shen, P. -N. ;  Chiang, H. -C. ;  Zou, B. -S.
刊名: NUCLEAR PHYSICS A
出版日期: 2006
卷号: 773, 期号:40910, 页码:78-94
关键词: CHIRAL PERTURBATION-THEORY ;  BETHE-SALPETER APPROACH ;  KPI SCATTERING ;  SCALAR MESONS ;  ONE-LOOP ;  FORM-FACTORS ;  RESONANCES ;  DECAYS ;  SIGMA ;  LAGRANGIANS
学科分类: Physics
通讯作者: Guo, FK , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China
部门归属: CCAST, World Lab, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; SW Univ, Chongqing 400715, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100864, Peoples R China; Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China; Grad Univ Beijing, Chinese Acad Sci, Beijing 100049, Peoples R China
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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000238893200004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5952
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
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(40910):78-94.
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