Tootfinder

Enhancements to the IceCube Extremely High Energy Neutrino Selection using Graph & Transformer Based Neural Networks
Maxwell Nakos (for the IceCube Collaboration), Aske Rosted (for the IceCube Collaboration), Lu Lu (for the IceCube Collaboration)
https://arxiv.org/abs/2507.11774

Enhancements to the IceCube Extremely High Energy Neutrino Selection using Graph & Transformer Based Neural Networks
KM3NeT has recently reported the detection of a very high-energy neutrino event, while IceCube has previously set upper limits on the differential neutrino flux above 100 PeV but has yet to observe a neutrino event with an energy comparable to that of the KM3NeT detection. To improve diffuse measurements above 10 PeV, we apply machine learning techniques to enhance atmospheric muon background rejection and directional reconstruction. We utilize a Graph Neural Network (GNN) to perform a classifi…

Multi-parameter isospectral Fokker-Planck equations
Choon-Lin Ho
https://arxiv.org/abs/2506.12939 https://arxiv.org/pdf/2506.12939

Multi-parameter isospectral Fokker-Planck equations
From a given Fokker-Planck equation, a multi-parameter deformed partner Fokker-Planck equation is constructed. This is done by first deleting a set of eigenstates of the original FPE by the multi-step Darboux-Crum transformation, and then reinstating the eigen-energy levels by the reverse Darboux-Crum transformation. Extension to fractional Fokker-Planck equation is briefly discussed. A recent study of the one-parameter isospectral FPE applied to black hole in the thermal potential approach is …

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Extended Version of Paper Presented at ICISSP, Porto 20-22 February, 2025 A Value-Driven Approach to the Online Consent Conundrum -- A Study with the Unemployed
Paul van Schaik, Karen Renaud
https://arxiv.org/abs/2506.12244

Extended Version of Paper Presented at ICISSP, Porto 20-22 February, 2025 A Value-Driven Approach to the Online Consent Conundrum -- A Study with the Unemployed
Online services are required to gain informed consent from users to collect, store and analyse their personal data, both intentionally divulged and derived during their use of the service. There are many issues with these forms: they are too long, too complex and demand the user's attention too frequently. Many users consent without reading so do not know what they are agreeing to. As such,granted consent is effectively uninformed. In this paper, we report on two studies we carried out to arriv…

A co-deployed dust-logging instrument for the IceCube Upgrade and IceCube-Gen2
Anna Eimer (for the IceCube Collaboration), Martin Rongen (for the IceCube Collaboration)
https://arxiv.org/abs/2507.08430

A co-deployed dust-logging instrument for the IceCube Upgrade and IceCube-Gen2
A precise understanding of the optical properties of the instrumented Antarctic ice sheet is crucial to the performance of optical Cherenkov telescopes such as the IceCube Neutrino Observatory and its planned successor, IceCube-Gen2. One complication arising from the large envisioned footprint of IceCube-Gen2 is the larger impact of the so-called ice tilt. It describes the undulation of ice layers of constant optical properties within the detector. In this contribution, we will describe the pro…

Search for Quantum Decoherence with 10.7 years of atmospheric $\nu_\mu$ events in IceCube
Tanvi Krishnan (for the IceCube Collaboration)
https://arxiv.org/abs/2507.12316

Search for Quantum Decoherence with 10.7 years of atmospheric $ν_μ$ events in IceCube
In order to develop a consistent quantum theory of gravity, we must understand the nature of spacetime at the Planck scale. In particular if it exhibits quantum fluctuations, they may cause propagating particles to evolve in an apparently non-unitary manner. Neutrinos, which interact only via the weak force and gravity, maintain quantum coherence while propagating over large distances. Thus, neutrino oscillations serve as a precise interferometer to search for Planck-scale fluctuations of space…

Measuring the Astrophysical Galactic Plane Neutrino Flux and Searching for Galactic PeVatrons using the IceCube Multi-Flavor Astrophysical Neutrino Sample
Matthias Thiesmeyer (for the IceCube Collaboration), Tianlu Yuan (for the IceCube Collaboration), Leo Seen (for the IceCube Collaboration), Lu Lu (for the IceCube Collaboration), Albrecht Karle (for the IceCube Collaboration)

Measuring the Astrophysical Galactic Plane Neutrino Flux and Searching for Galactic PeVatrons using the IceCube Multi-Flavor Astrophysical Neutrino Sample
The IceCube Neutrino Observatory has provided new insights into the high-energy universe, in particular, unveiling neutrinos from the galactic plane. However, galactic neutrino sources are still unresolved. The recent detection of multi-PeV photons by LHAASO from the Cygnus region highlights its potential as a galactic neutrino source. Additionally, LHAASO, HAWC, and HESS have reported over forty galactic gamma-ray sources with energies above 100 TeV. Detecting neutrinos correlated with high-en…

Low-latency neutrino follow-up combining diverse IceCube selections
Christoph Raab (for the IceCube Collaboration), Sam Hori (for the IceCube Collaboration), Steve Sclafani (for the IceCube Collaboration), Jessie Thwaites (for the IceCube Collaboration)
https://arxiv.org/abs/2507.08748

Low-latency neutrino follow-up combining diverse IceCube selections
Neutrino observations are crucial for multi-messenger astronomy, but currently limited by effective area and atmospheric background. However, while other telescopes must point their limited field of view, IceCube can perform full-sky realtime follow-up of astrophysical transient sources with high uptime. For this, IceCube uses its Fast Response Analysis (FRA), which can provide results from an unbinned maximum likelihood analysis within tens of minutes of an astrophysical transient. Besides man…

Event-by-event reconstruction of air-shower events with IceCube using a two component lateral distribution function
Mark Weyrauch (for the IceCube Collaboration)
https://arxiv.org/abs/2506.11507

Event-by-event reconstruction of air-shower events with IceCube using a two component lateral distribution function
The IceCube Neutrino Observatory, located at the geographic South Pole, comprises a surface component, IceTop, and an optical in-ice array. This unique com\-bi\-na\-tion allows for coincident measurements of low-energy ($\sim \rm{GeV}$) and high-energy ($\gtrsim 400\,\rm{GeV}$) muons produced in cosmic-ray air showers. The ratio of the low- and high-energy muon yields can constitute a useful tool not only for composition analyses but also for testing different hadronic interaction models. Howev…

Ultra-High-Energy Transient Source Search using IceCube Neutrinos and Pierre Auger Photon Candidates
Maxwell Nakos (for the IceCube,Pierre Auger Collaborations)
https://arxiv.org/abs/2507.10994

Ultra-High-Energy Transient Source Search using IceCube Neutrinos and Pierre Auger Photon Candidates
The origins of ultra-high-energy particles remain one of the most profound mysteries in astrophysics. If nearby transient sources of ultra-high-energy particles exist, we might expect correlated emission of neutrinos and photons, arriving in close temporal and spatial coincidence. The IceCube Neutrino Observatory, located at the South Pole, is sensitive to neutrinos from TeV to EeV energies, while the Pierre Auger Observatory, in Argentina, detects cosmic rays and has the capability of observin…