ANTARES替代事件重建策略
ANTARES alternative event reconstruction strategies
摘要：
ANTARES合作正在地中海2 500米深处建造一个高能中微子望远镜。该实验旨在通过探测中微子与周围介质相互作用产生的μ子和簇射引起的切伦科夫光来寻找高能宇宙中微子。该探测器将由900个光学模块的三维阵列组成，其中包括光电倍增管。它将由12个字符串组成，其中5个自2007年1月以来已经在运行。μ子轨道是从光电倍增管获得的信号的到达时间和电荷中重建的，光电倍增管的位置通过声学定位系统已知。重建策略包括几个步骤，其中有：光学背景滤波，算法的第一次估计的轨道参数，和最终的拟合，旨在达到一个角分辨率优于0.3度以上的10 TeV的全探测器。不同的重建策略将提出和他们的应用程序，目前真正的数据分析将进行审查。
英文摘要：
The ANTARES Collaboration is building a high-energy neutrino telescope at 2500 m depth in the Mediterranean Sea. The experiment aims to search for high-energy cosmic neutrinos through the detection of Cerenkov light induced by muons and showers resulting from neutrino interactions with the surrounding medium. The detector will consist of a three-dimensional array of 900 optical modules housing photomultipliers. It will be composed of 12 strings, 5 of them being already in operation since January 2007. The muon track is reconstructed from the arrival time and the charge of the signals obtained from the photomultipliers, whose positions are known by means of an acoustic positioning system. The reconstruction strategies include several steps among which there are: optical background filtering, algorithms for first estimations of the track parameters, and a final fit aiming to reach an angular resolution better than 0.3 degree above 10 TeV in the full detector. Different reconstruction strategies will be presented and their application to the present real data analysis will be reviewed.
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