arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1004.2365astro-ph.CO
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暗物质的定向探测

Directional detection of Dark Matter

J. Billard, F. Mayet, J. F. Macias-Perez, D. Santos, C. Grignon, O. Guillaudin

摘要:

对银河系暗物质的定向探测是区分真实WIMP事件和背景事件的一种很有前途的搜索策略。然而,为了充分利用这种强大的检测方法,需要能够从观察到的反冲图中提取信息来识别WIMP信号。我们提出了一个全面的形式主义,使用基于地图的似然方法,允许恢复信号的主要传入方向,从而证明其银河系的起源,以及相应的意义。然后在(sigma_n,m_chi)平面中推导约束。

英文摘要:

Directional detection of galactic Dark Matter is a promising search strategy for discriminating genuine WIMP events from background ones. However, to take full advantage of this powerful detection method, one need to be able to extract information from an observed recoil map to identify a WIMP signal. We present a comprehensive formalism, using a map-based likelihood method allowing to recover the main incoming direction of the signal, thus proving its galactic origin, and the corresponding significance. Constraints are then deduced in the (sigma_n, m_chi) plane.

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。

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