Charge radii of light and heavy mesons

Details Charge radii of light and heavy mesons Charge radii of light and heavy mesons

2001-12-18

arxiv.org/abs/hep-ph/0112237v2

Eur.Phys.J.C23:585-590,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 2 figures, some sections added in text. To appear in Eur.Phys.J.C

Scientific paper

10.1007/s100520200904

We calculate the electromagnetic (EM) form factors of the pseudoscalar mesons in the light-front framework. Specifically, these form factors are extracted from the relevant matrix elements directly, instead of choosing the Breit frame. The results show that the charge radius of the meson is related to both the first and second longitudinal momentum square derivatives of the momentum distribution function. The static properties of the EM form factors and the heavy quark symmetry of the charge radii are checked analytically in the heavy quark limit. In addition, we use the Gaussia-type wavefunction to obtain the numerical results.

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