Comprehensive analysis of the $γp \to K^+ Σ^0(1385)$, $γn \to K^+ Σ^-(1385)$, and $π^+ p \to K^+ Σ^+(1385)$ reactions
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866913746937446400 |
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| author | Wang, Ai-Chao Wei, Neng-Chang Huang, Fei |
| author_facet | Wang, Ai-Chao Wei, Neng-Chang Huang, Fei |
| contents | A comprehensive analysis of all available data on cross sections and spin-dependent observables for the $γp \to K^+ Σ^0(1385)$, $γn \to K^+ Σ^-(1385)$, and $π^+ p \to K^+ Σ^+(1385)$ reactions is performed within an effective Lagrangian framework. In addition to the $s$-channel $N$ exchange, $t$-channel $K$ and $K^\ast$ exchanges, $u$-channel $Λ$, $Σ$, and $Σ^\ast$ exchanges, and the interaction current, the $s$-channel contributions from a minimal set of $N$ and $Δ$ 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 $KΣ(1385)$ production reactions can be simultaneously and satisfactorily reproduced when the contribution of the $s$-channel $Δ(1930){5/2}^-$ resonance is taken into account. The reaction mechanisms, particularly the resonance contributions in each considered reaction, are thoroughly analyzed and discussed in detail. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_02295 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Comprehensive analysis of the $γp \to K^+ Σ^0(1385)$, $γn \to K^+ Σ^-(1385)$, and $π^+ p \to K^+ Σ^+(1385)$ reactions Wang, Ai-Chao Wei, Neng-Chang Huang, Fei High Energy Physics - Phenomenology Nuclear Theory A comprehensive analysis of all available data on cross sections and spin-dependent observables for the $γp \to K^+ Σ^0(1385)$, $γn \to K^+ Σ^-(1385)$, and $π^+ p \to K^+ Σ^+(1385)$ reactions is performed within an effective Lagrangian framework. In addition to the $s$-channel $N$ exchange, $t$-channel $K$ and $K^\ast$ exchanges, $u$-channel $Λ$, $Σ$, and $Σ^\ast$ exchanges, and the interaction current, the $s$-channel contributions from a minimal set of $N$ and $Δ$ 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 $KΣ(1385)$ production reactions can be simultaneously and satisfactorily reproduced when the contribution of the $s$-channel $Δ(1930){5/2}^-$ resonance is taken into account. The reaction mechanisms, particularly the resonance contributions in each considered reaction, are thoroughly analyzed and discussed in detail. |
| title | Comprehensive analysis of the $γp \to K^+ Σ^0(1385)$, $γn \to K^+ Σ^-(1385)$, and $π^+ p \to K^+ Σ^+(1385)$ reactions |
| topic | High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2503.02295 |