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)![]() ![]() | |
刊名 | NUCLEAR PHYSICS A
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2006 | |
卷号 | 773期号:1-2页码:#REF! |
关键词 | chiral perturbation theory Bethe-Salpeter equation K pi scattering final state interaction |
通讯作者 | Guo, FK (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, 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. |
学科主题 | Physics |
类目[WOS] | Physics, Nuclear |
收录类别 | SCI |
WOS记录号 | WOS:000238893200004 |
公开日期 | 2016-05-03 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/225993] ![]() |
专题 | 高能物理研究所_理论物理室 高能物理研究所_实验物理中心 |
推荐引用方式 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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