冰内粒子簇射的改进建模用于IceCube事件重建
高能天体物理现象
2024-06-21 v2 天体物理仪器与方法
数据分析、统计与概率
摘要
IceCube中微子天文台依靠光电倍增管阵列探测南极冰中带电粒子产生的切伦科夫光。IceCube数据分析依赖于对冰川冰的深入表征，以及利用光电子产额快速近似的事件重建新方法。这里，我们推导了一个更精确的事件重建模型，更好地捕捉了当前对冰光学性质的认识。在蒙特卡罗模拟集上评估时，与基于简化冰模型的传统重建相比，冰内粒子簇射的中位角分辨率提高了三倍以上。当包括由于冰的多晶结构引起的双折射效应时，获得了最显著的改进。当对高能起始事件样本中分类为粒子簇射的数据进行评估时，观察到对事件的描述显著改善。
引用
@article{arxiv.2403.02470,
title = {Improved modeling of in-ice particle showers for IceCube event reconstruction},
author = {R. Abbasi and M. Ackermann and J. Adams and S. K. Agarwalla and J. A. Aguilar and M. Ahlers and J. M. Alameddine and N. M. Amin and K. Andeen and G. Anton and C. Argüelles and Y. Ashida and S. Athanasiadou and L. Ausborm and S. N. Axani and X. Bai and A. Balagopal V. and M. Baricevic and S. W. Barwick and S. Bash and V. Basu and R. Bay and J. J. Beatty and J. Becker Tjus and J. Beise and C. Bellenghi and C. Benning and S. BenZvi and D. Berley and E. Bernardini and D. Z. Besson and E. Blaufuss and S. Blot and F. Bontempo and J. Y. Book and C. Boscolo Meneguolo and S. Böser and O. Botner and J. Böttcher and J. Braun and B. Brinson and J. Brostean-Kaiser and L. Brusa and R. T. Burley and R. S. Busse and D. Butterfield and M. A. Campana and I. Caracas and K. Carloni and J. Carpio and S. Chattopadhyay and N. Chau and Z. Chen and D. Chirkin and S. Choi and B. A. Clark and A. Coleman and G. H. Collin and A. Connolly and J. M. Conrad and P. Coppin and R. Corley and P. Correa and D. 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journal= {arXiv preprint arXiv:2403.02470},
year = {2024}
}
备注
28 pages, 18 figures, 1 table, submitted to JINST, updated to account for comments received