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arXiv · 2601.09307

Comments on Baryon Transition Form Factors

Christoph Hanhart·Maxim Mai·Ulf-G. Meißner·Deborah Rönchen
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Abstract

We discuss in rather general terms the properties of space-like baryon transition form factors. In particular, we argue why these are necessarily complex-valued, what can be deduced from the respective phase motion and why dealing with real valued transition form factors in general leads to misleading results. For illustration the transition form factors for the Roper resonance as derived in the J\"ulich-Bonn-Washington framework are discussed.

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Christoph Hanhart, Maxim Mai, Ulf-G. Meißner, Deborah Rönchen. 2026-01-14. Comments on Baryon Transition Form Factors. https://arxiv.org/abs/2601.09307

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