Decays of $N^*$ and $\Delta^*$ resonances into $N\rho$, $\Delta\pi$, and $N\sigma$

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 $\Delta^$ resonances into $N\rho$, $\Delta\pi$, and $N\sigma$

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 $\Delta^*$ resonances into $N\rho$, $\Delta\pi$ and $N\sigma$ 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 $\Delta(1232)\pi$, $N\rho$, $N\sigma$ 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. 2025-03-20. Decays of $N^*$ and $\Delta^*$ resonances into $N\rho$, $\Delta\pi$, and $N\sigma$. https://arxiv.org/abs/2503.16636

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