手征对称性与中微子π介子的产生
Chiral Symmetry and Neutrino Pion Production off the Nucleon
摘要：
在文献中，中微子从核子中产生π介子的传统描述是通过δ（1232）共振的弱激发及其随后衰变为N π。在这里，我们提出了一个模型，其中还包括一些背景条款所需的手征对称性的结果。我们发现，这些条款的贡献是相当大的，并导致显着的影响，在总的和部分集成的π介子生产截面在中间能量的兴趣中微子振荡实验。最后，我们讨论了宇称破坏的贡献的π角微分截面引起的干扰，这些非共振项与德尔塔片。
英文摘要：
The neutrino pion production off the nucleon is traditionally described in the literature by means of the weak excitation of the Delta(1232) resonance and its subsequent decay into N pi. Here, we present results from a model that includes also some background terms required by chiral symmetry. We show that the contribution of these terms is sizeable and leads to significant effects in total and partially integrated pion production cross sections at intermediate energies of interest for neutrino oscillation experiments. Finally, we discuss parity-violating contributions to the pion angular differential cross section induced by the interference of these non-resonant terms with the Delta piece.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
