Dark matter and imaging air Cherenkov arrays

详细信息    查看全文

• 作者：Lars Bergströ ; m ; ^{lbe@fysik.su.se}
• 关键词：Dark matter ; Indirect detection ; Gamma-rays ; Review
• 刊名：Astroparticle Physics
• 出版年：2013
• 出版时间：March, 2013
• 年：2013
• 卷：43
• 期：Complete
• 页码：44-49
• 全文大小：280 K

文摘

The CTA will mean a significant increase of the potential for dark matter detection, compared to present-day detectors like MAGIC, HESS and VERITAS. In particular, if - as it might be indicated from early LHC results - the dark matter sector is heavy, perhaps in the TeV mass range, imaging air Cherenkov arrays have a good opportunity to detect ¦Ã-rays from dark matter annihilation in the galactic halo, the galactic center, dwarf galaxies, or galaxy clusters. A review of the present situation is given and a few of the ¡°miracles¡± that may enhance chances for detection in CTA are discussed, such as Sommerfeld enhancement and internal bremsstrahlung radiation. A few templates for dark matter are studied, and the importance of the acceptance of the detector at low energies is pointed out. Finally, the idea of a complement to CTA in the form of a high-altitude, low energy threshold dedicated dark matter array, DMA, is discussed.