Branching Ratios for the Decay of $d^*(2380)$

TL;DR

This paper evaluates the decay branching ratios of the dibaryon resonance $d^*(2380)$ into various channels, including two-pion, neutron-proton, single-pion, and electromagnetic decays, based on experimental measurements.

Contribution

It provides the first comprehensive analysis of the decay modes and branching ratios of $d^*(2380)$, including potential electromagnetic and isoscalar single-pion decay channels.

Findings

Branching ratios for two-pion and $np$ decay channels are quantified.

Discussion of possible decay into isoscalar single-pion channel.

Electromagnetic decay modes are considered and analyzed.

Abstract

Based on measurements the branching ratios for the decay of the recently discovered dibaryon resonance $d^*(2380)$ into two-pion production channels and into the $np$ channel are evaluated. Possibilities for a decay into the isoscalar single-pion channel are discussed. Finally also the electromagnetic decay of $d^*(2380)$ is considered.