Quark distributions in polarized rho meson and its comparison with those in pion

Details Quark distributions in polarized rho meson and its comparison with those in pion Quark distributions in polarized rho meson and its comparison with those in pion

2002-08-05

arxiv.org/abs/hep-ph/0208040v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk presented at NATO Advanced Spin Physics Workshop, Yerevan (June 30-July3), to be published in Nato Science Series II - Ph

Scientific paper

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.

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