Low $Q^2$ wave-functions of pions and kaons and their parton distribution functions

Details Low $Q^2$ wave-functions of pions and kaons and their parton distribution functions Low $Q^2$ wave-functions of pions and kaons and their parton distribution functions

2000-05-29

arxiv.org/abs/hep-ph/0005287v1

Phys.Rev.D66:034016,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 3 postscript figures included

Scientific paper

10.1103/PhysRevD.66.034016

We study the low $Q^2$ wave-functions of pions and kaons as an expansion in terms of hadron-like Fock state fluctuations. In this formalism, pion and kaon wave-functions are related one another. Consequently, the knowledge of the pion structure allows the determination of parton distributions in kaons. In addition, we show that the intrinsic (low $Q^2$) sea of pions and kaons are different due to their different valence quark structure. Finally, we analize the feasibility of a method to extract kaon's parton distribution functions within this approach and compare with available experimental data.

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