基于 HAWC 数据的 6 TeV 至 158 TeV 间质子与氦核宇宙线能谱
高能天体物理现象
2022-04-15 v1
摘要
本文报道了对宇宙线中轻元素、特别是初级 H 加 He 核的差分能谱的高统计量测量。该能谱给出每个原子核能量从 到 TeV 的范围。数据由高海拔水切伦科夫（HAWC）天文台在 2015 年 6 月至 2019 年 6 月期间收集。分析基于贝叶斯展开过程，该过程应用于垂直 HAWC 数据的子样本，该子样本富集了 的轻核诱发事件。为实现质量分离，依据 CORSIKA/QGSJET-II-04 模拟的预测对空气簇射数据的横向年龄设置了截断。测得的能谱与折断幂律谱一致，并在约 TeV 处呈现膝状特征，折断前谱指数 ，折断后 。该特征的统计显著性为 。在系统不确定性范围内，能谱折断的显著性为 。
引用
@article{arxiv.2204.06662,
title = {Cosmic ray spectrum of protons plus helium nuclei between 6 TeV and 158 TeV from HAWC data},
author = {HAWC Collaboration and A. Albert and R. Alfaro and C. Alvarez and J. R. Angeles Camacho and J. C. Arteaga-Velázquez and K. P. Arunbabu and D. Avila Rojas and H. A. Ayala Solares and E. Belmont-Moreno and C. Brisbois and K. S. Caballero-Mora and T. Capistrán and A. Carramiñana and S. Casanova and U. Cotti and J. Cotzomi and E. De la Fuente and R. Diaz Hernandez and M. A. DuVernois and M. Durocher and J. C. Díaz-Vélez and C. Espinoza and N. Fraija and J. A. García-González and F. Garfias and M. M. González and J. A. Goodman and J. P. Harding and B. Hona and D. Huang and F. Hueyotl-Zahuantitla and P. Hüntemeyer and A. Iriarte and V. Joshi and D. Kieda and G. J. Kunde and A. Lara and W. H. Lee and H. León Vargas and J. T. Linnemann and A. L. Longinotti and G. Luis-Raya and K. Malone and O. Martinez and J. Martínez-Castro and J. A. Matthews and P. Miranda-Romagnoli and J. A. Morales-Soto and E. Moreno and M. Mostafá and A. Nayerhoda and L. Nellen and M. Newbold and R. Noriega-Papaqui and N. Omodei and E. G. Pérez-Pérez and C. D. Rho and D. Rosa-González and H. Salazar and F. Salesa Greus and A. Sandoval and J. Serna-Franco and A. J. Smith and R. W. Springer and K. Tollefson and I. Torres and R. Torres-Escobedo and F. Ureña-Mena and L. Villaseñor and X. Wang and E. Willox and H. Zhou and C. de León and J. D. Álvarez and G. B. Yodh and A. Zepeda},
journal= {arXiv preprint arXiv:2204.06662},
year = {2022}
}
备注
32 pages, 24 figures, published in Physical Review D