同时测量质子和Lepton运动学中的质子样$ν_μ$ $ - 氢碳相互作用从2到20 GEV

论文标题

同时测量质子和Lepton运动学中的质子样$ν_μ$ $ - 氢碳相互作用从2到20 GEV

Simultaneous measurement of proton and lepton kinematics in quasielastic-like $ν_μ$-hydrocarbon interactions from 2 to 20 GeV

论文作者

The MINERvA Collaboration, Ruterbories, D., Akhter, S., Dar, Z. Ahmad, Akbar, F., Ansari, V., Ascencio, M. V., Athar, M. Sajjad, Bashyal, A., Bercellie, A., Betancourt, M., Bodek, A., Bonilla, J. L., Bravar, A., Budd, H., Caceres, G., Cai, T., Carneiro, M. F., Díaz, G. A., da Motta, H., Felix, J., Fields, L., Filkins, A., Fine, R., Gago, A. M., Gallagher, H., Gaur, P. K., Ghosh, A., Gilligan, S. M., Gran, R., Haase, E., Harris, D. A., Henry, S., Jacobsen, K., Jena, D., Jena, S., Kleykamp, J., Klustová, A., Kordosky, M., Last, D., Lozano, A., Lu, X. -G., Maher, E., Manly, S., Mann, W. A., Mauger, C., McFarland, K. S., McGowan, A. M., 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., Schellman, H., Salinas, C. J. Solano, Su, H., Sultana, M., Syrotenko, V. S., Valencia, E., Vaughan, N. H., Waldron, A. V., Wascko, M. O., Wret, C., Yaeggy, B., Zazueta, L.

论文摘要

中微子带电流的准静电样散射是一种广泛用于中微子振荡测量的反应类别，可探测控制中微子核相互作用的核效应。这封信报告了使用Minerva检测器的碳氢化合物介质暴露于宽带光束2 $ \ leq $ \ e $_ν\ leq $ 20 gev。测量值映射了横向和纵向若子力量之间的相关性，并概括了质子动能，并将它们与从最先进的模拟中进行的预测进行了比较。观察到的差异是，可能反映出触发和/或核子内核能散射和/或观众核子射精的核的模型可能反映出短缺的差异。缓慢和望态变量的单独确定可以为中微子 - 能源估计的实验方法提供信息。

Neutrino charged-current quasielastic-like scattering, a reaction category extensively used in neutrino oscillation measurements, probes nuclear effects that govern neutrino-nucleus interactions. This Letter reports the first measurement of the triple-differential cross section for $ν_μ$ quasielastic-like reactions using the hydrocarbon medium of the MINERvA detector exposed to a wide-band beam spanning 2 $\leq$ E$_ν\leq$ 20 GeV. The measurement maps the correlations among transverse and longitudinal muon momenta and summed proton kinetic energies, and compares them to predictions from a state-of-art simulation. Discrepancies are observed that likely reflect shortfalls with modeling of pion and nucleon intranuclear scattering and/or spectator nucleon ejection from struck nuclei. The separate determination of leptonic and hadronic variables can inform experimental approaches to neutrino-energy estimation.

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