利用 Cherenkov Telescope Array 进行暗物质线搜索
高能物理 - 唯象学
2024-07-24 v2 高能天体物理现象
高能物理 - 实验
摘要
单色伽马射线信号构成了湮灭或衰变暗物质粒子的潜在确凿特征，可以相对容易地将其与天体物理或仪器背景区分开来。基于对银河系中心区域以及选定的矮椭球星系的观测，我们提供了 Cherenkov Telescope Array (CTA) 对此类信号灵敏度的最新评估。我们发现，对于 300 GeV 以上的暗物质质量，目前的限制和探测前景将得到显著改善，在多 TeV 范围内可提高多达一个数量级。这表明 CTA 作为世界上最大、最灵敏的高能伽马射线天文台，在这方面也将为伽马射线天文学树立新标准，特别是由于其卓越的 TeV 能量分辨率以及专注于暗物质密度高区域的观测策略。在整个分析过程中，我们使用了最新的仪器响应函数，并在我们的统计处理中彻底建模了仪器系统不确定性的影响。我们进一步给出了具有尖锐光谱特征的其他潜在特征的结果，例如盒状光谱，这些特征同样将非常清楚地指向粒子暗物质起源。
引用
@article{arxiv.2403.04857,
title = {Dark Matter Line Searches with the Cherenkov Telescope Array},
author = {S. Abe and J. Abhir and A. Abhishek and F. Acero and A. Acharyya and R. Adam and A. Aguasca-Cabot and I. Agudo and A. Aguirre-Santaella and J. Alfaro and R. Alfaro and N. Alvarez-Crespo and R. Alves Batista and J. -P. Amans and E. Amato and G. Ambrosi and L. Angel and C. Aramo and C. Arcaro and T. T. H. Arnesen and L. Arrabito and K. Asano and Y. Ascasibar and J. Aschersleben and H. Ashkar and M. Backes and A. Baktash and C. Balazs and M. Balbo and A. Baquero Larriva and V. Barbosa Martins and U. Barres de Almeida and J. A. Barrio and I. Batković and R. Batzofin and J. Baxter and J. Becerra González and G. Beck and W. Benbow and D. Berge and E. Bernardini and J. Bernete and K. Bernlöhr and A. Berti and B. Bertucci and P. Bhattacharjee and S. Bhattacharyya and C. Bigongiari and A. Biland and E. Bissaldi and J. Biteau and O. Blanch and J. Blazek and F. Bocchino and C. Boisson and J. Bolmont and G. Bonnoli and A. Bonollo and P. Bordas and Z. Bosnjak and E. Bottacini and M. 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journal= {arXiv preprint arXiv:2403.04857},
year = {2024}
}
备注
44 pages JCAP style (excluding author list and references), 19 figures; minor changes to match published version