Classification and asymptotic scaling of the light-cone wave-function amplitudes of hadrons
Department of Physics, University of Maryland, College Park, 20742, Maryland, USA
2 Institute of Theoretical Physics, Academia Sinica, 100080, Beijing, P.R. China
3 Department of Physics, University of Maryland, College Park, 20742, Maryland, USA
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We classify the hadron light-cone wave-function amplitudes in terms of parton helicity, orbital angular momentum, and quark-flavor and color symmetries. We show in detail how this is done for the pion, meson, nucleon, and delta resonance up to and including three partons. For the pion and nucleon, we also consider four-parton amplitudes. Using the scaling law derived previously, we show how these amplitudes scale in the limit that all parton transverse momenta become large.
© Springer-Verlag, 2004