Soft pion theorem for hard near threshold pion production
Abstract
We prove new soft pion theorem for the near threshold pion production by a hard electromagnetic probe. This theorem relates various near threshold pion production amplitudes to the nucleon distribution amplitudes. The new soft pion theorem is in a good agreement with the SLAC data for F2p(W,Q2) for W2 < 1.4 GeV2 and 7 < Q2 < 30.7 GeV2.
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