Decays of $N^*$ and $Δ^*$ resonances into $Nρ$, $Δπ$, and $Nσ$

A. V. Sarantsev; E. Klempt; K. V. Nikonov; T. Seifen; U. Thoma; Y. Wunderlich; P. Achenbach; V. D. Burkert; V. Mokeev; V. Crede

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arXiv · 2503.16636

Decays of $N^$ and $Δ^$ resonances into $Nρ$, $Δπ$, and $Nσ$

A. V. Sarantsev·E. Klempt·K. V. Nikonov·T. Seifen·U. Thoma·Y. Wunderlich·P. Achenbach·V. D. Burkert·V. Mokeev·V. Crede

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Abstract

The decays of $N^*$ and $Δ^*$ resonances into $Nρ$, $Δπ$ and $Nσ$ final states are studied in a coupled-channel analysis of data on pion- and photo-induced reactions. Improvements in the fit were observed when new resonance contributions were introduced. Frequencies for the intermediate isobars $Δ(1232)π$, $Nρ$, $Nσ$ are reported.

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A. V. Sarantsev, E. Klempt, K. V. Nikonov, T. Seifen, U. Thoma, Y. Wunderlich, P. Achenbach, V. D. Burkert, V. Mokeev, V. Crede. 2025-10-21. Decays of $N^*$ and $Δ^*$ resonances into $Nρ$, $Δπ$, and $Nσ$. https://arxiv.org/abs/2503.16636

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