论文标题
中微子诱导的单极产生和重新分析的气泡室数据
Neutrino-induced single pion production and the reanalyzed bubble chamber data
论文作者
论文摘要
在这项工作中，我们报告了用中微子和抗神经酸酯弱的Pion生产的电流总和差分横截面的计算，并使用最终的Pion-Nucleon对不变质量$ W_ {πn} \ LISHSIM2 $ GEV进行计算。将我们的结果与旧气泡室实验的最新重新分析数据进行了比较，这些数据解决了ANL和BNL数据之间的差异。我们实施了先前测试的$ W_ {πn} <1.4,1.6 $ GEV的模型，其中包括在第一和第二共振区域中明确共振的不同方法，以共振自我和$ \ frac {3} {2} {2} {2} {2} $ - cortexes and-certexes and Expagators，而不是通常分析的。我们的模型依靠一致的有效的拉格朗日人，它们会产生共振振幅无共振和共振背景。 Hadrons有限延伸和更伟大的共振对应于$ 1.6 <w_ {πn} <2 $ GEV区域中发射的铅核子不变质量的影响，它使用适当的形式来考虑与先前的中性电流pion生产计算结果一致的效果。我们的结果很好地重现了重新分析的数据而无需削减，并与其他模型进行了比较。
In this work we report the calculation of the charged current total and differential cross sections for weak pion-production with neutrinos and antineutrinos, with the final pion-nucleon pair invariant mass $W_{πN}\lesssim2$GeV. Our results are compared with the recent reanalyzed data from the old bubble chamber experiments, that solved the discrepancy between the ANL and BNL data. We implement a model previously tested for the cuts $W_{πN}<1.4,1.6$ Gev which includes explicitly resonances in the first and second resonance regions, within different approaches for the resonances self energy and $\frac{3}{2}$-vertexes and propagators, a fact not usually analyzed. Our model leans on consistent effective Lagrangians that generate resonant amplitudes together non resonant plus resonant backgrounds. Effects of hadrons finite extension and more energetic resonances corresponding to the emitted pion-nucleon invariant mass in the $1.6<W_{πN}<2$ GeV region, are taking into account using appropiate form factors in consistency with previous results on neutral current pion production calculations. Our results reproduce well the reanalysed data without cuts and are compared with another models.
