同时测量Muon Neutrino $ν_μ$充电单$π^+$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ _2 $ _2 $ o，fe和pb targets在密涅瓦

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同时测量Muon Neutrino $ν_μ$充电单$π^+$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ $ _2 $ _2 $ o，fe和pb targets在密涅瓦

Simultaneous measurement of muon neutrino $ν_μ$ charged-current single $π^+$ production in CH, C, H$_2$O, Fe, and Pb targets in MINERvA

论文作者

Bercellie, A., Kroma-Wiley, K. A., Akhter, S., Dar, Z. Ahmad, Akbar, F., Ansari, V., Ascencio, M. V., Athar, M. Sajjad, Bellantoni, L., Betancourt, M., Bodek, A., Bonilla, J. L., Bravar, A., Budd, H., Caceres, G., Cai, T., Díaz, G. A., da Motta, H., Dytman, S. A., Felix, J., Fields, L., Filkins, A., Fine, R., Gago, A. M., Gallagher, H., Gaur, P. K., Ghosh, A., Gilligan, S. M., Gran, R., Granados, E., Harris, D. A., Jena, D., Jena, S., Kleykamp, J., Klustová, A., Kordosky, M., Last, D., Le, T., Lozano, A., Lu, X. -G., Mahbub, I., Maher, E., Manly, S., Mann, W. A., Mauger, C., McFarland, K. S., Messerly, B., Miller, J., Moreno, O., Morfín, J. G., Naples, D., Nelson, J. K., Nguyen, C., Olivier, A., Paolone, V., Perdue, G. N., Plows, K. -J., Ramírez, M. A., Ransome, R. D., Ray, H., Ruterbories, D., Schellman, H., Salinas, C. J. Solano, Su, H., Sultana, M., Syrotenko, V. S., Utt, B., Valencia, E., Vaughan, N. H., Waldron, A. V., Yaeggy, B., Zazueta, L.

论文摘要

中微子诱导的充电单$π^+$在$δ（1232）$ resonance区域中的产生对于基于加速器的中微子振荡实验引起了极大的关注。在这项工作中，据报道，在闪烁体，碳，碳，水，铁和铅目标上，使用宽频段$ν_μ$ beam带有$ \ weft <e e__ f e_ f i__的闪烁，碳，水，铁和铅目标，报告了半独立反应的高统计差截面$ν_μA\至μ^-π^ + $ $ nucleon（s）。与当前中微子相互作用发生器中使用的现象学模型相比，在低$ q^2 $下以低$ q^2 $的抑制和低$t_π$的增强。在探测的运动学变量中，铁和铅的横截面比分别为0.8和0.5，这是电流发生器也无法预测的缩放。

Neutrino-induced charged-current single $π^+$ production in the $Δ(1232)$ resonance region is of considerable interest to accelerator-based neutrino oscillation experiments. In this work, high statistics differential cross sections are reported for the semi-exclusive reaction $ν_μA \to μ^- π^+ +$ nucleon(s) on scintillator, carbon, water, iron, and lead targets recorded by MINERvA using a wide-band $ν_μ$ beam with $\left< E_ν\right> \approx 6$~GeV. Suppression of the cross section at low $Q^2$ and enhancement of low $T_π$ are observed in both light and heavy nuclear targets compared to phenomenological models used in current neutrino interaction generators. The cross-section ratios for iron and lead compared to CH across the kinematic variables probed are 0.8 and 0.5 respectively, a scaling which is also not predicted by current generators.

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