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Volume 358 - 36th International Cosmic Ray Conference (ICRC2019) - CRI - Cosmic Ray Indirect
A Three-dimensional Reconstruction of Cosmic Ray Events in IceCube
E. Dvorak,* X. Bai, J. Gonzalez, D. Soldin
*corresponding author
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Pre-published on: 2019 July 23
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The IceCube Neutrino Observatory at the geographic South Pole consists of two components, a km^{2} surface array IceTop and a km^{3} in-ice array between 1.5 and 2.5 km below the surface. Cosmic ray events with primary energy above a few tens of TeV may trigger both the IceTop and in-ice array and leave a three-dimensional footprint of the electromagnetic and muonic components in the extensive air shower. A new reconstruction based on the minimization of a unified likelihood function involving quantities measured by both IceTop and in-ice detectors was developed. This report describes the new reconstruction algorithm and summarizes its performance tested with Monte Carlo events under two different containment conditions. The advantages of the new reconstruction are discussed in comparison with reconstructions that use IceTop or in-ice data separately. Some possible improvements are also summarized.
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