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Studying K pi S-wave scattering in the K-matrix formalism
Li, L; Zou, BS; Li, GL
2003
发表期刊PHYSICAL REVIEW D
卷号67期号:3页码:34025
通讯作者Inst High Energy Phys, Beijing 100039, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China ; Inst Theoret Phys, Beijing 100080, Peoples R China ; Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China
文章类型Article
摘要We generalize our previous work on pipi scattering to Kpi scattering, and reanalyze the experiment data for Kpi scattering below 1.6 GeV. Without any free parameter, we explain the Kpi I=3/2 S-wave phase shift very well by using t-channel rho and u-channel K* meson exchange. With the t-channel and u-channel meson exchange fixed as the background term, we fit the Kpi I=1/2 S-wave data of the LASS experiment quite well by introducing one or two s-channel resonances. It is found that there is only one s-channel resonance between the Kpi threshold and 1.6 GeV, i.e., K-0*(1430) with a mass around 1438-1486 MeV and a width of about 346 MeV, while the t-channel rho exchange gives a pole at (450-480i) MeV for the amplitude, rather uncertain due to the limitations of the approach used.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.67.034025
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语种英语
WOS研究方向Astronomy & Astrophysics ; Physics
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000181431400039
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被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240561
专题理论物理室
作者单位中国科学院高能物理研究所
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Li, L,Zou, BS,Li, GL. Studying K pi S-wave scattering in the K-matrix formalism[J]. PHYSICAL REVIEW D,2003,67(3):34025.
APA Li, L,Zou, BS,&Li, GL.(2003).Studying K pi S-wave scattering in the K-matrix formalism.PHYSICAL REVIEW D,67(3),34025.
MLA Li, L,et al."Studying K pi S-wave scattering in the K-matrix formalism".PHYSICAL REVIEW D 67.3(2003):34025.
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