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The kaon form factor in the light-cone quark model
Authors:Bo-Wen Xiao  Xin Qian  Bo-Qiang Ma
Institution:(1) Department of Physics, Peking University, Beijing 100871, PRC, CN;(2) CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, PRC, and Department of Physics, Peking University, Beijing 100871, PRC, CN
Abstract:The electromagnetic form factor of the kaon meson is calculated in the light-cone formalism of the relativistic constituent quark model. The calculated K+ form factor is consistent with almost all of the available experimental data at low-energy scale, while other properties of the kaon could also be interrelated in this representation with reasonable parameters. Predictions of the form factors for the charged and neutral kaons at a higher-energy scale are also given, and we find the non-zero K0 form factor at Q 2≠ 0 due to the mass difference between the strange and down quarks inside K0. Received: 21 June 2002 / Accepted: 29 July 2002 / Published online: 3 December 2002 RID="a" ID="a"e-mail: mabq@phy.pku.edu.cn Communicated by A. Sch?fer
Keywords:PACS  14  40  Aq π    K  and η  mesons –  12  39  Ki Relativistic quark model –  13  40  Gp Electromagnetic form factors
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