Mesons in Nuclei in the Light-Front Mean Field Approximation and Deep-Inelastic Scattering
Abstract
A light-front treatment for the scalar and vector meson momentum distribution functions is developed using a model in which the nucleus is treated a static source of radius R. The limit R ∞ corresponds to infinite nuclear matter. In this limit, the scalar mesons are shown to carry a vanishing momentum fraction of the nuclear plus momentum k+, but the vector mesons carry a significant fraction, all occuring at the experimentally inaccessible value of k+=0. This confirms earlier work. A study of the R dependence for sizes of real nuclei shows that a fraction of the scalar and vector mesons could be observable.
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