Electromagnetic structure and weak decay of meson K in a light-front QCD-inspired
arXiv:0704.0627 · doi:10.1016/j.nuclphysa.2007.03.103
Abstract
The kaon electromagnetic (e.m.) form factor is reviewed considering a light-front constituent quark model. In this approach, it is discussed the relevance of the quark-antiquark pair terms for the full covariance of the e.m. current. It is also verified, by considering a QCD dynamical model, that a good agreement with experimental data can be obtained for the kaon weak decay constant once a probability of about 80% of the valence component is taken into account.
4 pages and 1 figure eps. To appear Nucl. Phys. A (2007)