在CERN的ATLAS探测器中探测大气中微子振荡
Detecting atmospheric neutrino oscillations in the ATLAS detector at CERN
摘要：
讨论了在欧洲核子研究中心的ATLAS实验中研究大气中微子振荡的可能性。由于大的总检测器质量，大量的事件是预期的，并在关闭阶段的大型强子对撞机，重建这些事件将有可能与非常好的能量和角分辨率，并与电荷识别。我们认为，中微子运行可以达到500个活日，在这段时间内，总共可以收集到约160个包含ν_μ事件和约360个向上运动的μ子。尽管统计数据很低，但出色的探测器分辨率将允许明确确认大气中微子振荡和测量领先的振荡参数。虽然我们详细的模拟表明，ATLAS的灵敏度比专门的中微子实验差，我们证明，更复杂的探测器，例如在ILC，可以与即将到来的超束实验具有很强的竞争力，甚至可能给出指示的质量层次和θ-13的值。
英文摘要：
We discuss the possibility to study oscillations of atmospheric neutrinos in the ATLAS experiment at CERN. Due to the large total detector mass, a significant number of events is expected, and during the shutdown phases of the LHC, reconstruction of these events will be possible with very good energy and angular resolutions, and with charge identification. We argue that 500 live days of neutrino running could be achieved, and that a total of ~160 contained ν_μevents and ~360 upward going muons could be collected during this time. Despite the low statistics, the excellent detector resolution will allow for an unambiguous confirmation of atmospheric neutrino oscillations and for measurements of the leading oscillation parameters. Though our detailed simulations show that the sensitivity of ATLAS is worse than that of dedicated neutrino experiments, we demonstrate that more sophisticated detectors, e.g. at the ILC, could be highly competitive with upcoming superbeam experiments, and might even give indications for the mass hierarchy and for the value of theta-13.
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