论文标题
带电电流（抗）中微子诱导的ETA产生了核子
Charged current (anti)neutrino induced eta production off the nucleon
论文作者
论文摘要
基于有效的Lagrangians在模型中研究了带电的电流（抗）中微子诱导的ETA产生，以评估非谐振和共振图的贡献。非谐波背景项的贡献是使用基于SU（3）手性Lagrangians的微观模型获得的。由于低说谎的$ s_ {11}（1535）$，$ s_ {11}（1650）$和$ p_ {11}（1710）$共振的贡献，$ s_ {11}（1535）$，$ s_ {11}（1650）$，已使用有效的现象学生长态度进行了评估。该模型首先用于令人满意地重现Mainz和JLAB的实验数据，以介绍$η$介子的照片和电产生的总横截面，该数据固定了矢量电流相互作用中的模型参数。 PCAC假设和广义的Goldberger-Treiman关系用于固定轴向矢量相互作用的参数。然后将模型应用于研究中微子和抗肿瘤诱导的ETA介子的弱产生，并预测$ q^2 $ - 分布，$η$ -Momentum分布的数值，以及反应的总交叉部分$ n \ n \ n \ longrightartrowRowRowμ^ + p + p + p + p + p + p + p + p + prus + p + pr + pr + μ^ + + n +η$在能量区域最高2 GEV。发现ETA介子的照片，电和（抗）中微子的产生由$ S_ {11}（1535）$共振的贡献主导。这项工作中讨论的结果与当前和未来的加速器实验有关，例如微酮，T2K，Nova，Minerva，T2-Hyperk和Dune以及大气中微子实验。
The charged current (anti)neutrino induced eta production from the nucleons is studied in a model based on the effective Lagrangians to evaluate the contribution from the nonresonant and resonant diagrams. The contribution from the nonresonant background terms has been obtained using a microscopic model based on the SU(3) chiral Lagrangians. The contribution from the resonant diagrams due to the low lying $S_{11}(1535)$, $S_{11} (1650)$, and $P_{11} (1710)$ resonances has been evaluated using an effective phenomenological Lagrangian with its parameters determined from the experimental values of their branching ratios and decay widths to the $Nη$ channel. The model is first used to reproduce satisfactorily the experimental data from the MAINZ and JLab on the total cross sections for the photo- and electro- production of $η$ mesons, which fixes the model parameters in the vector current interaction. The PCAC hypothesis and generalized Goldberger-Treiman relation are used to fix the parameters of the axial vector interaction. The model is then applied to study the weak production of eta mesons induced by the neutrinos and antineutrinos, and predicts the numerical values for the $Q^2$-distribution, $η$-momentum distribution, and the total cross section for the reactions $ν_μ + n \longrightarrow μ^{-} + p + η$ and $\barν_μ + p \longrightarrow μ^+ + n + η$ in the energy region up to 2 GeV. It is found that the photo, electro, and (anti)neutrino production of eta mesons is dominated by the contribution from the $S_{11}(1535)$ resonance. The results discussed in this work are relevant for the present and future accelerator experiments like MicroBooNE, T2K, NOvA, MINERvA, T2-HyperK and DUNE as well as for the atmospheric neutrino experiments.
