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S wave K pi scattering and effects of kappa in J/psi ->(K)over-bar*(0)(892)K+pi(-)
Guo FK(郭奉坤); Ping RG(平荣刚); Shen PN(沈彭年); Jiang HQ(姜焕清); Zou BS(邹冰松); Guo, FK; Ping, RG; Shen, PN; Chiang, HC; Zou, BS
Source PublicationNUCLEAR PHYSICS A
Corresponding AuthorGuo, FK (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
AbstractK 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.
Keywordchiral perturbation theory Bethe-Salpeter equation K pi scattering final state interaction
Subject AreaPhysics
WOS SubjectPhysics, Nuclear
WOS IDWOS:000238893200004
ADS Bibcode2006NuPhA.773...78G
ADS URLhttps://ui.adsabs.harvard.edu/abs/2006NuPhA.773...78G
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2006NuPhA.773...78G/citations
Citation statistics
Cited Times:60 [INSPIRE]
Cited Times:43 [ADS]
Document Type期刊论文
Recommended Citation
GB/T 7714
Guo FK,Ping RG,Shen PN,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(1-2):#REF!.
APA 郭奉坤.,平荣刚.,沈彭年.,姜焕清.,邹冰松.,...&Zou, BS.(2006).S wave K pi scattering and effects of kappa in J/psi ->(K)over-bar*(0)(892)K+pi(-).NUCLEAR PHYSICS A,773(1-2),#REF!.
MLA 郭奉坤,et al."S wave K pi scattering and effects of kappa in J/psi ->(K)over-bar*(0)(892)K+pi(-)".NUCLEAR PHYSICS A 773.1-2(2006):#REF!.
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