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arXiv · 0707.1507

Diffractive Neutral Pion Production, Chiral Symmetry and the Odderon

Carlo Ewerz·Otto Nachtmann
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Abstract

We discuss the diffractive photo- and electroproduction of a single neutral pion at high energies where it can occur due to odderon exchange. We show that this process is dynamically suppressed as a consequence of chiral symmetry. Our result reconciles earlier theoretical expectations with the non-observation of this reaction at HERA.

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Carlo Ewerz, Otto Nachtmann. 2007-07-10. Diffractive Neutral Pion Production, Chiral Symmetry and the Odderon. https://arxiv.org/abs/0707.1507

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