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Onset of quark-hadron duality in pion electroproduction
T Navasardyan1, G S Adams, A Ahmidouch
1Yerevan Physics Institute, Yerevan, Armenia.
Abstract:
A large data set of charged-pion (pi+/-) electroproduction from both hydrogen and deuterium targets has been obtained spanning the low-energy residual-mass region. These data conclusively show the onset of the quark-hadron duality phenomenon, as predicted for high-energy hadron electroproduction. We construct several ratios from these data to exhibit the relation of this phenomenon to the high-energy factorization ansatz of electron-quark scattering and subsequent quark-->pion production mechanisms.
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