用中微子诱导带电流中性π介子产生探测核效应
高能物理 - 实验
2024-08-27 v5
摘要
我们利用具有完全成像末态质子- 系统的事件，研究碳核上中微子诱导的带电流（CC） 产生。基于横向运动学不平衡的末态关联的新颖使用，使得首次测量中微子π介子产生中被击核子的费米运动、核内动量转移（IMT）动力学以及末态强子动量构型成为可能。给出了以下事件分布：i) 费米面下中微子击出中子的动量，ii) 表征 IMT 强度的缺失横向动量方向，以及 iii) 相对于轻子散射平面的质子-π介子动量不平衡。观测到的费米运动和 IMT 强度与之前 MINERvA 对中微子 CC 类准弹性产生的测量进行了比较。这些分布测得的形状与绝对率，以及截面不对称性，显示出与当前中微子产生器模型预测的张力。
引用
@article{arxiv.2002.05812,
title = {Probing nuclear effects with neutrino-induced charged-current neutral pion production},
author = {D. Coplowe and O. Altinok and Z. Ahmad Dar and F. Akbar and D. A. Andrade and G. D. Barr and A. Bashyal and A. Bercellie and M. Betancourt and A. Bodek and A. Bravar and H. Budd and G. Caceres and T. Cai and M. F. Carneiro and H. da Motta and S. A. Dytman and G. A. Díaz and J. Felix and L. Fields and A. Filkins and R. Fine and A. M. Gago and H. Gallagher and A. Ghosh and R. Gran and D. A. Harris and S. Henry and S. Jena and J. Kleykamp and M. Kordosky and D. Last and T. Le and A. Lozano and X. -G. Lu and E. Maher and S. Manly and W. A. Mann and C. Mauger and K. S. McFarland and B. Messerly and J. Miller and J. G. Morfín and D. Naples and J. K. Nelson and C. Nguyen and A. Norrick and A. Olivier and V. Paolone and G. N. Perdue and M. A. Ramírez and R. D. Ransome and H. Ray and P. A. Rodrigues and D. Ruterbories and H. Schellman and J. T. Sobczyk and C. J. Solano Salinas and H. Su and M. Sultana and V. S. Syrotenko and E. Valencia and D. Wark and A. Weber and M. Wospakrik and C. Wret and B. Yaeggy and L. Zazueta},
journal= {arXiv preprint arXiv:2002.05812},
year = {2024}
}
备注
9 pages, 8 figures. v3: PRD-accepted version, with full package of supplemental materials; v4: added 2 missing references; v5: corrected typo in Eq. 8