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Constraining the Prompt Atmospheric Neutrino Flux Combining IceCube's Cascade and Track Samples
R. Abbasi, M. Ackermann, J. Adams +428
The IceCube Neutrino Observatory has observed a diffuse flux of high-energy astrophysical neutrinos for more than a decade. A relevant background to the astrophysical flux is promp…
Limits on GeV-scale WIMP Annihilation in Dwarf Spheroidals with IceCube DeepCore
R. Abbasi, M. Ackermann, J. Adams +428
Dark matter is approximately five times more abundant than baryonic matter in the universe, but its physical nature continues to elude physicists. One potential candidate for dark…
Search for GeV-scale Dark Matter from the Galactic Center with IceCube-DeepCore
The IceCube Collaboration, R. Abbasi, M. Ackermann +431
Models describing dark matter as a novel particle often predict that its annihilation or decay into Standard Model particles could produce a detectable neutrino flux in regions of…
Characterization of the Three-Flavor Composition of Cosmic Neutrinos with IceCube
R. Abbasi, M. Ackermann, J. Adams +429
Neutrinos oscillate over cosmic distances. Using 11.4 years of IceCube data, the flavor composition of the all-sky neutrino flux from 5\,TeV--10\,PeV is studied. We report the firs…
Constraints on the Correlation of IceCube Neutrinos with Tracers of Large-Scale Structure
R. Abbasi, M. Ackermann, J. Adams +430
The IceCube Neutrino Observatory has observed extragalactic astrophysical neutrinos with an apparently isotropic distribution. Only a small fraction of the observed astrophysical n…
Evidence for Neutrino Emission from X-Ray-bright Active Galactic Nuclei with IceCube
R. Abbasi, M. Ackermann, J. Adams +429
Recently, IceCube reported neutrino emission from the Seyfert galaxy NGC 1068. Using 13.1 years of IceCube data, we present a follow-up search for neutrino sources in the northern…
Limiting the Parameter Space for Unstable eV-scale Neutrinos Using IceCube Data
R. Abbasi, M. Ackermann, J. Adams +422
This Letter extends a recent IceCube sterile neutrino search to include unstable sterile neutrinos within the context of a model termed 3+1+Decay, which expands upon the 3+1 model…
The LED calibration systems for the mDOM and D-Egg sensor modules of the IceCube Upgrade
R. Abbasi, M. Ackermann, J. Adams +432
The IceCube Neutrino Observatory, instrumenting about 1 km of deep, glacial ice at the geographic South Pole, is due to be enhanced with the IceCube Upgrade. The IceCube Upgrad…
Identification and Denoising of Radio Signals from Cosmic-Ray Air Showers using Convolutional Neural Networks
R. Abbasi, M. Ackermann, J. Adams +426
Radio pulses generated by cosmic-ray air showers can be used to reconstruct key properties like the energy and depth of the electromagnetic component of cosmic-ray air showers. Rad…
The IceCube Collaboration -- Contributions to the 39th International Cosmic Ray Conference (ICRC2025)
R. Abbasi, M. Ackermann, J. Adams +426
The IceCube Observatory at the South Pole has been operating in its full configuration since May 2011 with a duty cycle of about 99%. Its main component consists of a cubic-kilomet…
Low-latency neutrino follow-up combining diverse IceCube selections
Christoph Raab, Sam Hori, Steve Sclafani +1
Neutrino observations are crucial for multi-messenger astronomy, but currently limited by effective area and atmospheric background. However, while other telescopes must point thei…
IceCube searches for GeV neutrino counterparts associated with high-energy starting events
Christoph Raab, Gwenhaël de Wasseige
The origin of the astrophysical neutrino flux observed by IceCube is largely unknown. To help decipher its astrophysical origin, we propose an IceCube analysis that conducts follow…
Search for High-Energy Neutrinos From the Sun Using Ten Years of IceCube Data
R. Abbasi, M. Ackermann, J. Adams +424
In this Letter, we present the results of a search for high-energy neutrinos produced by the annihilation of dark matter particles trapped in the Sun. Using 9.3 and 10.4 years of d…
A Search for Millimeter-Bright Blazars as Astrophysical Neutrino Sources
R. Abbasi, M. Ackermann, J. Adams +424
The powerful jets of blazars have been historically considered as likely sites of high-energy cosmic-ray acceleration. However, particulars of the launched jet and the locations of…
Improved measurements of the TeV-PeV extragalactic neutrino spectrum from joint analyses of IceCube tracks and cascades
R. Abbasi, M. Ackermann, J. Adams +424
The IceCube South Pole Neutrino Observatory has discovered the presence of a diffuse astrophysical neutrino flux at energies of TeV and beyond using neutrino induced muon tracks an…
Evidence for a Spectral Break or Curvature in the Spectrum of Astrophysical Neutrinos from 5 TeV--10 PeV
R. Abbasi, M. Ackermann, J. Adams +424
We report improved measurements of the all flavor astrophysical neutrino spectrum with IceCube by combining complementary neutrino samples in two independent analyses. Both analyse…
All-sky neutrino point-source search with IceCube combined track and cascade data
R. Abbasi, M. Ackermann, J. Adams +424
Despite extensive efforts, discovery of high-energy astrophysical neutrino sources remains elusive. We present an event-level simultaneous maximum likelihood analysis of tracks and…
Measurement of the mean number of muons with energies above 500 GeV in air showers detected with the IceCube Neutrino Observatory
R. Abbasi, M. Ackermann, J. Adams +413
We present a measurement of the mean number of muons with energies larger than 500 GeV in near-vertical extensive air showers initiated by cosmic rays with primary energies between…
GollumFit: An IceCube Open-Source Framework for Binned-Likelihood Neutrino Telescope Analyses
IceCube Collaboration
We present GollumFit, a framework designed for performing binned-likelihood analyses on neutrino telescope data. GollumFit incorporates model parameters common to any neutrino tele…
Fast Low Energy Reconstruction using Convolutional Neural Networks
IceCube Collaboration
IceCube is a Cherenkov detector instrumenting over a cubic kilometer of glacial ice deep under the surface of the South Pole. The DeepCore sub-detector lowers the detection energy…
Search for Heavy Neutral Leptons with IceCube DeepCore
R. Abbasi, M. Ackermann, J. Adams +421
The observation of neutrino oscillations has established that neutrinos have non-zero masses. This phenomenon is not explained by the Standard Model of particle physics, but one vi…
VERITAS and multiwavelength observations of the Blazar B3 2247+381 in response to an IceCube neutrino alert
Atreya Acharyya, Colin B. Adams, Priyadarshini Bangale +494
While the sources of the diffuse astrophysical neutrino flux detected by the IceCube Neutrino Observatory are still largely unknown, one of the promising methods used towards under…
Probing the PeV Region in the Astrophysical Neutrino Spectrum using from the Southern Sky
R. Abbasi, M. Ackermann, J. Adams +425
IceCube has observed a diffuse astrophysical neutrino flux over the energy region from a few TeV to a few PeV. At PeV energies, the spectral shape is not yet well measured due to t…
Seasonal Variations of the Atmospheric Muon Neutrino Spectrum measured with IceCube
R. Abbasi, M. Ackermann, J. Adams +425
This study presents an energy-dependent analysis of seasonal variations in the atmospheric muon neutrino spectrum, using 11.3 years of data from the IceCube Neutrino Observatory. B…