根据大气中微子事件估算强子能量
Hadron energy estimation from Atmospheric neutrino events
摘要：
INO的ICAL主要用于观测大气μ子中微子和反中微子在带电电流相互作用中产生的μ子。μ子的轨道是利用它们在探测器中产生的撞击来重建的。从这个径迹出发，估计了μ子的电荷、能量和方向，并用于振荡物理分析。在很大一部分事件中，除了μ子之外，还产生了许多强子。带电的强子也会在探测器中留下撞击，这可以用来估计强子的能量。在这项工作中，我们研究了强子碰撞之间的关系，定义为之间的差异的总命中和μ子轨道命中，强子能量。我们发现在大气中微子相互作用中产生了不可忽略数量的重子。当E（had）<5 GeV时，几乎所有的强子能量都由这些重子携带。最后，我们制定了一个程序，通过它的强子能量可以估计的强子撞击的数量。
英文摘要：
The ICAL at INO is designed to mainly observe the muons produced in the charged current interactions of atmospheric muon neutrinos and anti-neutrinos. The track of the muon is reconstructed using the hits they produce in the detector. From this track, the charge, the energy and the direction of the muon are estimated, which are used to do oscillation physics analysis. In a large fraction of events, a number of hadrons are also produced in addition to the muons. The charged hadrons also leave hits in the detector which can be utilized to estimate the hadron energy. In this work, we study the relation between hadron hits, defined to be the difference between the total number of hits and the muon track hits, and the hadron energy. We find that a non-negligible number of baryons are produced in atmospheric neutrino interactions. For E(had) < 5 GeV, almost all the hadron energy is carried by these baryons. Finally, we formulate a procedure by which the hadron energy can be estimated from the number of hadron hits.
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