A single KM3NeT event above 10 PeV is in 2.9 to 3.6 sigma tension with IceCube's non-observation under all standard source models, pointing toward a new astrophysical source.
Recent Improvements for the Lepton Propagator PROPOSAL
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abstract
The lepton propagator PROPOSAL is a Monte-Carlo Simulation library written in C++, propagating high energy muons and other charged particles through large distances of media. In this article, a restructuring of the code is described, which yields a performance improvement of up to $30\,\%$. For an improved accuracy of the propagation processes, more exact calculations of the leptonic and hadronic decay process and more precise parametrizations for the interaction cross sections are now available. The new modular structure allows a more flexible and custom usage, which is further facilitated with a python interface.
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Clash of the Titans: ultra-high energy KM3NeT event versus IceCube data
A single KM3NeT event above 10 PeV is in 2.9 to 3.6 sigma tension with IceCube's non-observation under all standard source models, pointing toward a new astrophysical source.