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arXiv 1610.02201astro-ph.HE
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ANTARES中微子望远镜的结果

Results from the ANTARES Neutrino Telescope

M. Spurio

摘要:

深海中微子望远镜ANTARES的主要目标是寻找TeV-PeV范围内的天体物理中微子。ANTARES是目前北半球最大的中微子望远镜。自冰立方发现宇宙中微子扩散流以来,对其起源的理解已成为高能天体物理学的一项重要任务。ANTARES在μ子通道和级联通道(由所有中微子味引起)中都具有出色的角分辨率,因此对位于南天的源做出了宝贵的贡献。假设各种光谱指数的中微子发射体的能谱,南部的天空,特别是我们的银河系的中心区域进行了研究,寻找点状物体和扩展区域的发射。与此同时,通过采用多信使方法,基于与其他宇宙探测器的时间和/或空间巧合,可以大大增强这种搜索的灵敏度。ANTARES参与了引力波信号GW 150914的高能中微子后续活动,首次限制了双黑洞合并的高能中微子发射。ANTARES还对暗物质进行了间接搜索,对自旋相关的WIMP-核子截面进行了限制,改进了当前的直接检测实验。

英文摘要:

A primary goal of a deep-sea neutrino telescopes as ANTARES is the search for astrophysical neutrinos in the TeV-PeV range. ANTARES is today the largest neutrino telescope in the Northern hemisphere. After the discovery of a cosmic neutrino diffuse flux by the IceCube, the understanding of its origin has become a key mission in high-energy astrophysics. ANTARES makes a valuable contribution for sources located in the Southern sky thanks to its excellent angular resolution in both the muon channel and the cascade channel (induced by all neutrino flavors). Assuming various spectral indexes for the energy spectrum of neutrino emitters, the Southern sky and in particular central regions of our Galaxy are studied searching for point-like objects and for extended regions of emission. In parallel, by adopting a multimessenger approach, based on time and/or space coincidences with other cosmic probes, the sensitivity of such searches can be considerably augmented. ANTARES has participated to a high-energy neutrino follow-up of the gravitational wave signal GW150914, providing the first constraint on high-energy neutrino emission from a binary black hole coalescence. ANTARES has also performed indirect searches for Dark Matter, yielding limits for the spin-dependent WIMP-nucleon cross-section that improve upon those of current direct-detection experiments.

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