Eur. Phys. J. A 15, 523-527 (2002)
DOI: 10.1140/epja/i2002-10059-y

The kaon form factor in the light-cone quark model

Bo-Wen Xiao¹, Xin Qian¹ and Bo-Qiang Ma<sup>2

1</sup>  Department of Physics, Peking University, Beijing 100871, PRC
²  CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, PRC, and Department of Physics, Peking University, Beijing 100871, PRC

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(Received: 21 June 2002 / Revised version: 29 July 2002 / Published online: 3 December 2002)

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 due to the mass difference between the strange and down quarks inside K⁰.

PACS
14.40.Aq - , K, and mesons.
12.39.Ki - Relativistic quark model.
13.40.Gp - Electromagnetic form factors.

© Società Italiana di Fisica, Springer-Verlag 2002