arXiv 1910.021662019-10-04hep-exphysics.ins-det

从MicroBooNE LArTPC中的$π^0 \rightarrow γγ$衰变重建和测量$\mathcal{O}$（100）MeV能量电磁活动

Reconstruction and Measurement of $\mathcal{O}$(100) MeV Energy Electromagnetic Activity from $π^0 \rightarrow γγ$ Decays in the MicroBooNE LArTPC

MicroBooNE collaboration, C. Adams, M. Alrashed, R. An, J. Anthony, J. Asaadi, A. Ashkenazi, S. Balasubramanian, B. Baller, C. Barnes, G. Barr, V. Basque, M. Ba… 展开作者

MicroBooNE collaboration, C. Adams, M. Alrashed, R. An, J. Anthony, J. Asaadi, A. Ashkenazi, S. Balasubramanian, B. Baller, C. Barnes, G. Barr, V. Basque, M. Bass, F. Bay, S. Berkman, A. Bhanderi, A. Bhat, M. Bishai, A. Blake, T. Bolton, L. Camilleri, D. Caratelli, I. Caro Terrazas, R. Carr, R. Castillo Fernandez, F. Cavanna, G. Cerati, Y. Chen, E. Church, D. Cianci, E. O. Cohen, J. M. Conrad, M. Convery, L. Cooper-Troendle, J. I. Crespo-Anadon, M. Del Tutto, D. Devitt, A. Diaz, L. Domine, K. Duffy, S. Dytman, B. Eberly, A. Ereditato, L. Escudero Sanchez, J. Esquivel, J. J. Evans, R. S. Fitzpatrick, B. T. Fleming, N. Foppiani, D. Franco, A. P. Furmanski, D. Garcia-Gamez, S. Gardiner, V. Genty, D. Goeldi, S. Gollapinni, O. Goodwin, E. Gramellini, P. Green, H. Greenlee, R. Grosso, L. Gu, W. Gu, R. Guenette, P. Guzowski, P. Hamilton, O. Hen, C. Hill, G. A. Horton-Smith, A. Hourlier, E. C. Huang, R. Itay, C. James, J. Jan de Vries, X. Ji, L. Jiang, J. H. Jo, R. A. Johnson, J. Joshi, Y. J. Jwa, G. Karagiorgi, W. Ketchum, B. Kirby, M. Kirby, T. Kobilarcik, I. Kreslo, I. Lepetic, Y. Li, A. Lister, B. R. Littlejohn, S. Lockwitz, D. Lorca, W. C. Louis, M. Luethi, B. Lundberg, X. Luo, A. Marchionni, S. Marcocci, C. Mariani, J. Marshall, J. Martin-Albo, D. A. Martinez Caicedo, K. Mason, A. Mastbaum, N. McConkey, V. Meddage, T. Mettler, K. Miller, J. Mills, K. Mistry, T. Mohayai, A. Mogan, J. Moon, M. Mooney, C. D. Moore, J. Mousseau, M. Murphy, R. Murrells, D. Naples, R. K. Neely, P. Nienaber, J. Nowak, O. Palamara, V. Pandey, V. Paolone, A. Papadopoulou, V. Papavassiliou, S. F. Pate, A. Paudel, Z. Pavlovic, E. Piasetzky, D. Porzio, S. Prince, G. Pulliam, X. Qian, J. L. Raaf, A. Rafique, L. Ren, L. Rochester, H. E. Rogers, M. Ross-Lonergan, C. Rudolf von Rohr, B. Russell, G. Scanavini, D. W. Schmitz, A. Schukraft, W. Seligman, M. H. Shaevitz, R. Sharankova, J. Sinclair, A. Smith, E. L. Snider, M. Soderberg, S. Soldner-Rembold, S. R. Soleti, P. Spentzouris, J. Spitz, M. Stancari, J. St. John, T. Strauss, K. Sutton, S. Sword-Fehlberg, A. M. Szelc, N. Tagg, W. Tang, K. Terao, R. T. Thornton, M. Toups, Y. -T. Tsai, S. Tufanli, T. Usher, W. Van De Pontseele, R. G. Van de Water, B. Viren, M. Weber, H. Wei, D. A. Wickremasinghe, Z. Williams, S. Wolbers, T. Wongjirad, K. Woodruff, M. Wospakrik, W. Wu, T. Yang, G. Yarbrough, L. E. Yates, G. P. Zeller, J. Zennamo, C. Zhang

DOI：: 10.1088/1748-0221/15/02/P02007

阅读 PDF

arXiv 页面 ↗HTML 原文 ↗

摘要：

我们提出的结果重建的电磁（EM）活动从光子产生的带电电流$ν_μ$与最终状态$π^0$的相互作用。我们采用了一种全自动的重建链，能够识别$\mathcal{O}$（100）MeV能量的EM簇射，依赖于传统的重建技术与新型机器学习方法的结合。这些研究证明了良好的能量分辨率，以及数据和模拟之间的良好一致性，依赖于重建的不变$π^0$质量和其他光子分布进行验证。开发的重建技术被施加到选择的$ν_μ + {\rm Ar} \rightarrow μ+ π^0 + X$候选事件，以证明从电子和$π^0$运动学重建的光子的量热分离的潜力。

英文摘要：

We present results on the reconstruction of electromagnetic (EM) activity from photons produced in charged current $ν_μ$ interactions with final state $π^0$s. We employ a fully-automated reconstruction chain capable of identifying EM showers of $\mathcal{O}$(100) MeV energy, relying on a combination of traditional reconstruction techniques together with novel machine-learning approaches. These studies demonstrate good energy resolution, and good agreement between data and simulation, relying on the reconstructed invariant $π^0$ mass and other photon distributions for validation. The reconstruction techniques developed are applied to a selection of $ν_μ + {\rm Ar} \rightarrow μ+ π^0 + X$ candidate events to demonstrate the potential for calorimetric separation of photons from electrons and reconstruction of $π^0$ kinematics.

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