Electroproduction of Transversely Polarized Vector Mesons Via A Quantum Mechanical Anomaly

Details Electroproduction of Transversely Polarized Vector Mesons Via A Quantum Mechanical Anomaly Electroproduction of Transversely Polarized Vector Mesons Via A Quantum Mechanical Anomaly

1999-02-09

arxiv.org/abs/hep-ph/9902286v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, RevTex

Scientific paper

By explicit calculation we demonstrate that, in variance with the classical prediction, the leading twist contribution to the exclusive electroproduction of transversely polarized vector mesons from the nucleon does not vanish beyond the leading order in perturbation theory. This appears to be due to a quantum-mechanical anomaly, in the sense that a classical symmetry of the field theory is broken by quantum corrections.

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