Quark distributions in polarized rho meson and its comparison with those in pion
Abstract
Description
Valence quark distributions in transversally and longitudinally polarizied rho mesons in the region of intermediate x are obtained by generalizied QCD sum rules. Power corrections up to d=6 are taken into account. Comparison of the results for pi and rho mesons shows, that polarization effects are very significant and SU(6) symmetry of distribution functions is absent. The strong suppression of quark and gluon sea distributions in longitudinally polarizied rho mesons is found.
Talk presented at NATO Advanced Spin Physics Workshop, Yerevan (June 30-July3), to be published in Nato Science Series II - Physics, 16 pages, LaTeX 2e, 4 eps figures included
Talk presented at NATO Advanced Spin Physics Workshop, Yerevan (June 30-July3), to be published in Nato Science Series II - Physics, 16 pages, LaTeX 2e, 4 eps figures included