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Soft Pion Emission in Hard Exclusive Pion Production

Maxim V. Polyakov·Simone Stratmann
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Abstract

We investigate hard exclusive reactions on the nucleon with soft pion emission. A parametrization of corresponding hadronic matrix elements in terms of parton distributions for final pion-nucleon state is provided. These distributions are calculated in terms of nucleon and pion GPDs and the pion distribution amplitude via soft-pion theorems. Some observables for the process of hard charged pion production on the proton with soft pion emission are computed.

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Maxim V. Polyakov, Simone Stratmann. 2006-09-05. Soft Pion Emission in Hard Exclusive Pion Production. https://arxiv.org/abs/hep-ph/0609045

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