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arXiv · 2601.03102

Anatomy of Roper Resonance

Igor Strakovsky
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Abstract

Sixty years ago, the first excited state of a proton/neutron was ``born.'' During this time, we learned a lot about it, specifically - how unique this case is: a single resonance with two pole positions on different Riemann sheets. Let me present a brief history to remind readers how development progressed. Sure, history is sometimes something that never happened, described by those who were never there...

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Igor Strakovsky. 2026-01-06. Anatomy of Roper Resonance. https://arxiv.org/abs/2601.03102

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