arXiv 1403.21032014-03hep-exnucl-ex

中微子能量2-20时C、Fe和Pb上的$ν_μ$荷电截面与CH荷电截面之比的测量GeV

Measurement of Ratios of $ν_μ$ Charged-Current Cross Sections on C, Fe, and Pb to CH at Neutrino Energies 2-20 GeV

B. G. Tice, M. Datta, J. Mousseau, L. Aliaga, O. Altinok, M. G. Barrios Sazo, M. Betancourt, A. Bodek, A. Bravar, W. K. Brooks, H. Budd, M. J. Bustamante, A. Bu… 展开作者

B. G. Tice, M. Datta, J. Mousseau, L. Aliaga, O. Altinok, M. G. Barrios Sazo, M. Betancourt, A. Bodek, A. Bravar, W. K. Brooks, H. Budd, M. J. Bustamante, A. Butkevich, D. A. Martinez Caicedo, C. M. Castromonte, M. E. Christy, J. Chvojka, H. da Motta, J. Devan, S. A. Dytman, G. A. Díaz, B. Eberly, J. Felix, L. Fields, G. A. Fiorentini, A. M. Gago, H. Gallagher, R. Gran, D. A. Harris, A. Higuera, K. Hurtado, M. Jerkins, T. Kafka, M. Kordosky, S. A. Kulagin, T. Le, G. Maggi, E. Maher, S. Manly, W. A. Mann, C. M. Marshall, C. Martin Mari, K. S. McFarland, C. L. McGivern, A. M. McGowan, J. Miller, A. Mislivec, J. G. Morfín, T. Muhlbeier, D. Naples, J. K. Nelson, A. Norrick, J. Osta, J. L. Palomino, V. Paolone, J. Park, C. E. Patrick, G. N. Perdue, L. Rakotondravohitra, R. D. Ransome, H. Ray, L. Ren, P. A. Rodrigues, D. G. Savage, H. Schellman, D. W. Schmitz, C. Simon, F. D. Snider, C. J. Solano Salinas, N. Tagg, E. Valencia, J. P. Velásquez, T. Walton, J. Wolcott, G. Zavala, D. Zhang, B. P. Ziemer

备注：: 6 pages, 2 figures, 7 pages of supplemental material. Published in Physical Review Letters June 13, 2014
发表信息：: Phys. Rev. Lett. 112, 231801 (2014)
DOI：: 10.1103/PhysRevLett.112.231801

阅读 PDF

arXiv 页面 ↗HTML 原文 ↗

摘要：

我们目前的测量$ν_μ$充电电流截面比碳，铁和铅相对于闪烁体（CH）使用细粒度的MINERvA探测器暴露于NuMI中微子束在费米实验室。测量利用事件的能量$2<E_ν<20~GeV$，与$\left< E_ν\right>=8~GeV$，其中具有重建的$μ^{-}$散射角小于$17^\circ$提取比率的包容性总截面的中微子能量$E_ν$和通量积分微分截面相对于比约肯标度变量$x$的函数。这些结果提供了第一个高统计直接测量中微子散射中的核效应，使用不同的目标在同一中微子束。测得的横截面比表现出在低$x$和增强在大$x$的相对耗尽。随着靶核的核子数增加，两者都变得更加明显。的数据没有再现的GENIE，一个传统的中微子-核散射模拟，或被认为是非弹性散射的核依赖性的替代模型。

英文摘要：

We present measurements of $ν_μ$ charged-current cross section ratios on carbon, iron, and lead relative to a scintillator (CH) using the fine-grained MINERvA detector exposed to the NuMI neutrino beam at Fermilab. The measurements utilize events of energies $2<E_ν<20~GeV$, with $\left< E_ν\right>=8~GeV$, which have a reconstructed $μ^{-}$ scattering angle less than $17^\circ$ to extract ratios of inclusive total cross sections as a function of neutrino energy $E_ν$ and flux-integrated differential cross sections with respect to the Bjorken scaling variable $x$. These results provide the first high-statistics direct measurements of nuclear effects in neutrino scattering using different targets in the same neutrino beam. Measured cross section ratios exhibit a relative depletion at low $x$ and enhancement at large $x$. Both become more pronounced as the nucleon number of the target nucleus increases. The data are not reproduced by GENIE, a conventional neutrino-nucleus scattering simulation, or by the alternative models for the nuclear dependence of inelastic scattering that are considered.

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。

摘要：

英文摘要：

相关论文