arXiv:2503.02295·v1·High Energy Physics — Phenomenology
Comprehensive analysis of the , , and reactions
Ai-Chao Wang🇨🇳 · Neng-Chang Wei🇨🇳 · Fei Huang🇨🇳
Abstract
A comprehensive analysis of all available data on cross sections and spin-dependent observables for the , , and reactions is performed within an effective Lagrangian framework. In addition to the -channel exchange, -channel and exchanges, -channel , , and exchanges, and the interaction current, the -channel contributions from a minimal set of and resonances are included in constructing the reaction amplitudes to describe the data. The analysis reveals that all available data for both photon- and hadron-induced production reactions can be simultaneously and satisfactorily reproduced when the contribution of the -channel resonance is taken into account. The reaction mechanisms, particularly the resonance contributions in each considered reaction, are thoroughly analyzed and discussed in detail.