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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.; Guo, FK , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China
2006
发表期刊NUCLEAR PHYSICS A
ISSN0375-9474
卷号773期号:40910页码:78-94
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.
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
关键词Chiral Perturbation-theory Bethe-salpeter Approach Kpi Scattering Scalar Mesons One-loop Form-factors Resonances Decays Sigma Lagrangians
学科领域Physics
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收录类别SCI
WOS记录号WOS:000238893200004
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被引频次:37[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5952
专题理论物理所SCI论文
通讯作者Guo, FK , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China
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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(40910):78-94.
APA Guo, F-K.,Ping, R. -G.,Shen, P. -N.,Chiang, H. -C.,Zou, B. -S.,&Guo, FK , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.(2006).S wave K pi scattering and effects of kappa in J/psi ->(K)over-bar*(0)(892)K+pi(-).NUCLEAR PHYSICS A,773(40910),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 773.40910(2006):78-94.
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