arXiv:hep-ph/9406342·v1·High Energy Physics — Phenomenology

Structure Dependence in $π \to ℓ ν, π toℓ ν γ$ and $π^{0} t o γ γ$ Decays

D. Ghilencea · L. Micu

Abstract

The amplitudes of $π$ -meson decays are calculated in a relativistic nonperturbative quark model which assumes that mesons are made of a quark antiquark pair and of a scalar neutral component representing the contribution of the nonelementary fluctuations of the quark gluonic field. The experimental data can be fitted in a satisfactory manner using current quark masses $m_{u} \approx 1.5 M e V, m_{d} \approx 9 M e V$ .

Comments: no. pages 16 + 6 pages with figures by request, LATEX

Structure Dependence in π→ℓν,π toℓνγ and π0 toγγ Decays

Abstract

Structure Dependence in $π \to ℓ ν, π toℓ ν γ$ and $π^{0} t o γ γ$ Decays