论文标题
独家$π^{ - } $电源于共振区域氘中的中子
Exclusive $π^{-}$ Electroproduction off the Neutron in Deuterium in the Resonance Region
论文作者
论文摘要
在氘$γ_vn(p)\ rightArrowpπ^{ - }(p)$中绑定的独家和无准横截面的新结果,在最终的状态生命重角范围内显示出具有不变质量($ w $)和1.825 GEV和1.825 Photon Photon Photon $ q平衡的最终状态生命线角度范围。 0.4至1.0 GEV $^2 $。提取了独家结构函数,并获得了其legendre矩。仅基于实验数据的分析,最终状态相互作用的贡献已与提取的准跨部分进行运动学分离。这些新结果将作为已期待已久的现象学分析的输入,以提取$ q^{2} $以前不可用的$ n \ to n^{*} $ eeturectroxcitation幅度的演变,并通过从核中增强核的中微子散射的最新模型,从而从核中提高了自由蛋白的可用结果。
New results for the exclusive and quasi-free cross sections off neutrons bound in deuterium $γ_vn(p) \rightarrow pπ^{-} (p)$ are presented over a wide final state hadron angle range with a kinematic coverage of the invariant mass ($W$) up to 1.825 GeV and the virtual photon four-momentum transfer squared ($Q^{2}$) from 0.4 to 1.0 GeV$^2$. The exclusive structure functions were extracted and their Legendre moments were obtained. Final-state-interaction contributions have been kinematically separated from the extracted quasi-free cross sections off bound neutrons solely based on the analysis of the experimental data. These new results will serve as long-awaited input for phenomenological analyses to extract the $Q^{2}$ evolution of previously unavailable $n \to N^{*}$ electroexcitation amplitudes and to improve state-of-the-art models of neutrino scattering off nuclei by augmenting the already available results from free protons.