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</div> <div class="control"> <button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2404.19589">arXiv:2404.19589</a> <span> [<a href="https://arxiv.org/pdf/2404.19589">pdf</a>, <a href="https://arxiv.org/format/2404.19589">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> Acceptance Tests of more than 10 000 Photomultiplier Tubes for the multi-PMT Digital Optical Modules of the IceCube Upgrade </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbasi%2C+R">R. Abbasi</a>, <a href="/search/physics?searchtype=author&query=Ackermann%2C+M">M. Ackermann</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+J">J. Adams</a>, <a href="/search/physics?searchtype=author&query=Agarwalla%2C+S+K">S. K. Agarwalla</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J+A">J. A. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahlers%2C+M">M. Ahlers</a>, <a href="/search/physics?searchtype=author&query=Alameddine%2C+J+M">J. M. Alameddine</a>, <a href="/search/physics?searchtype=author&query=Amin%2C+N+M">N. M. Amin</a>, <a href="/search/physics?searchtype=author&query=Andeen%2C+K">K. Andeen</a>, <a href="/search/physics?searchtype=author&query=Arg%C3%BCelles%2C+C">C. Arg眉elles</a>, <a href="/search/physics?searchtype=author&query=Ashida%2C+Y">Y. Ashida</a>, <a href="/search/physics?searchtype=author&query=Athanasiadou%2C+S">S. Athanasiadou</a>, <a href="/search/physics?searchtype=author&query=Ausborm%2C+L">L. Ausborm</a>, <a href="/search/physics?searchtype=author&query=Axani%2C+S+N">S. N. Axani</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/physics?searchtype=author&query=V.%2C+A+B">A. Balagopal V.</a>, <a href="/search/physics?searchtype=author&query=Baricevic%2C+M">M. Baricevic</a>, <a href="/search/physics?searchtype=author&query=Barwick%2C+S+W">S. W. Barwick</a>, <a href="/search/physics?searchtype=author&query=Bash%2C+S">S. Bash</a>, <a href="/search/physics?searchtype=author&query=Basu%2C+V">V. Basu</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+R">R. Bay</a>, <a href="/search/physics?searchtype=author&query=Beatty%2C+J+J">J. J. Beatty</a>, <a href="/search/physics?searchtype=author&query=Tjus%2C+J+B">J. Becker Tjus</a>, <a href="/search/physics?searchtype=author&query=Beise%2C+J">J. Beise</a>, <a href="/search/physics?searchtype=author&query=Bellenghi%2C+C">C. Bellenghi</a> , et al. (399 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2404.19589v2-abstract-short" style="display: inline;"> More than 10,000 photomultiplier tubes (PMTs) with a diameter of 80 mm will be installed in multi-PMT Digital Optical Modules (mDOMs) of the IceCube Upgrade. These have been tested and pre-calibrated at two sites. A throughput of more than 1000 PMTs per week with both sites was achieved with a modular design of the testing facilities and highly automated testing procedures. The testing facilities… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.19589v2-abstract-full').style.display = 'inline'; document.getElementById('2404.19589v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2404.19589v2-abstract-full" style="display: none;"> More than 10,000 photomultiplier tubes (PMTs) with a diameter of 80 mm will be installed in multi-PMT Digital Optical Modules (mDOMs) of the IceCube Upgrade. These have been tested and pre-calibrated at two sites. A throughput of more than 1000 PMTs per week with both sites was achieved with a modular design of the testing facilities and highly automated testing procedures. The testing facilities can easily be adapted to other PMTs, such that they can, e.g., be re-used for testing the PMTs for IceCube-Gen2. Single photoelectron response, high voltage dependence, time resolution, prepulse, late pulse, afterpulse probabilities, and dark rates were measured for each PMT. We describe the design of the testing facilities, the testing procedures, and the results of the acceptance tests. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2404.19589v2-abstract-full').style.display = 'none'; document.getElementById('2404.19589v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 June, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">24 pages, 19 figures, 2 tables, submitted to JINST</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2403.02470">arXiv:2403.02470</a> <span> [<a href="https://arxiv.org/pdf/2403.02470">pdf</a>, <a href="https://arxiv.org/format/2403.02470">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/19/06/P06026">10.1088/1748-0221/19/06/P06026 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Improved modeling of in-ice particle showers for IceCube event reconstruction </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbasi%2C+R">R. Abbasi</a>, <a href="/search/physics?searchtype=author&query=Ackermann%2C+M">M. Ackermann</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+J">J. Adams</a>, <a href="/search/physics?searchtype=author&query=Agarwalla%2C+S+K">S. K. Agarwalla</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J+A">J. A. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahlers%2C+M">M. Ahlers</a>, <a href="/search/physics?searchtype=author&query=Alameddine%2C+J+M">J. M. Alameddine</a>, <a href="/search/physics?searchtype=author&query=Amin%2C+N+M">N. M. Amin</a>, <a href="/search/physics?searchtype=author&query=Andeen%2C+K">K. Andeen</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Arg%C3%BCelles%2C+C">C. Arg眉elles</a>, <a href="/search/physics?searchtype=author&query=Ashida%2C+Y">Y. Ashida</a>, <a href="/search/physics?searchtype=author&query=Athanasiadou%2C+S">S. Athanasiadou</a>, <a href="/search/physics?searchtype=author&query=Ausborm%2C+L">L. Ausborm</a>, <a href="/search/physics?searchtype=author&query=Axani%2C+S+N">S. N. Axani</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/physics?searchtype=author&query=V.%2C+A+B">A. Balagopal V.</a>, <a href="/search/physics?searchtype=author&query=Baricevic%2C+M">M. Baricevic</a>, <a href="/search/physics?searchtype=author&query=Barwick%2C+S+W">S. W. Barwick</a>, <a href="/search/physics?searchtype=author&query=Bash%2C+S">S. Bash</a>, <a href="/search/physics?searchtype=author&query=Basu%2C+V">V. Basu</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+R">R. Bay</a>, <a href="/search/physics?searchtype=author&query=Beatty%2C+J+J">J. J. Beatty</a>, <a href="/search/physics?searchtype=author&query=Tjus%2C+J+B">J. Becker Tjus</a>, <a href="/search/physics?searchtype=author&query=Beise%2C+J">J. Beise</a> , et al. (394 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2403.02470v2-abstract-short" style="display: inline;"> The IceCube Neutrino Observatory relies on an array of photomultiplier tubes to detect Cherenkov light produced by charged particles in the South Pole ice. IceCube data analyses depend on an in-depth characterization of the glacial ice, and on novel approaches in event reconstruction that utilize fast approximations of photoelectron yields. Here, a more accurate model is derived for event reconstr… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.02470v2-abstract-full').style.display = 'inline'; document.getElementById('2403.02470v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2403.02470v2-abstract-full" style="display: none;"> The IceCube Neutrino Observatory relies on an array of photomultiplier tubes to detect Cherenkov light produced by charged particles in the South Pole ice. IceCube data analyses depend on an in-depth characterization of the glacial ice, and on novel approaches in event reconstruction that utilize fast approximations of photoelectron yields. Here, a more accurate model is derived for event reconstruction that better captures our current knowledge of ice optical properties. When evaluated on a Monte Carlo simulation set, the median angular resolution for in-ice particle showers improves by over a factor of three compared to a reconstruction based on a simplified model of the ice. The most substantial improvement is obtained when including effects of birefringence due to the polycrystalline structure of the ice. When evaluated on data classified as particle showers in the high-energy starting events sample, a significantly improved description of the events is observed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2403.02470v2-abstract-full').style.display = 'none'; document.getElementById('2403.02470v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 22 April, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 4 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">28 pages, 18 figures, 1 table, submitted to JINST, updated to account for comments received</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> 2024 JINST 19 P06026 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2304.12236">arXiv:2304.12236</a> <span> [<a href="https://arxiv.org/pdf/2304.12236">pdf</a>, <a href="https://arxiv.org/format/2304.12236">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevD.108.012014">10.1103/PhysRevD.108.012014 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Measurement of Atmospheric Neutrino Mixing with Improved IceCube DeepCore Calibration and Data Processing </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=IceCube+Collaboration"> IceCube Collaboration</a>, <a href="/search/physics?searchtype=author&query=Abbasi%2C+R">R. Abbasi</a>, <a href="/search/physics?searchtype=author&query=Ackermann%2C+M">M. Ackermann</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+J">J. Adams</a>, <a href="/search/physics?searchtype=author&query=Agarwalla%2C+S+K">S. K. Agarwalla</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J+A">J. A. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahlers%2C+M">M. Ahlers</a>, <a href="/search/physics?searchtype=author&query=Alameddine%2C+J+M">J. M. Alameddine</a>, <a href="/search/physics?searchtype=author&query=Amin%2C+N+M">N. M. Amin</a>, <a href="/search/physics?searchtype=author&query=Andeen%2C+K">K. Andeen</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Arg%C3%BCelles%2C+C">C. Arg眉elles</a>, <a href="/search/physics?searchtype=author&query=Ashida%2C+Y">Y. Ashida</a>, <a href="/search/physics?searchtype=author&query=Athanasiadou%2C+S">S. Athanasiadou</a>, <a href="/search/physics?searchtype=author&query=Axani%2C+S+N">S. N. Axani</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/physics?searchtype=author&query=V.%2C+A+B">A. Balagopal V.</a>, <a href="/search/physics?searchtype=author&query=Baricevic%2C+M">M. Baricevic</a>, <a href="/search/physics?searchtype=author&query=Barwick%2C+S+W">S. W. Barwick</a>, <a href="/search/physics?searchtype=author&query=Basu%2C+V">V. Basu</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+R">R. Bay</a>, <a href="/search/physics?searchtype=author&query=Beatty%2C+J+J">J. J. Beatty</a>, <a href="/search/physics?searchtype=author&query=Becker%2C+K+-">K. -H. Becker</a>, <a href="/search/physics?searchtype=author&query=Tjus%2C+J+B">J. Becker Tjus</a>, <a href="/search/physics?searchtype=author&query=Beise%2C+J">J. Beise</a> , et al. (383 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2304.12236v2-abstract-short" style="display: inline;"> We describe a new data sample of IceCube DeepCore and report on the latest measurement of atmospheric neutrino oscillations obtained with data recorded between 2011-2019. The sample includes significant improvements in data calibration, detector simulation, and data processing, and the analysis benefits from a detailed treatment of systematic uncertainties, with significantly higher level of detai… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.12236v2-abstract-full').style.display = 'inline'; document.getElementById('2304.12236v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2304.12236v2-abstract-full" style="display: none;"> We describe a new data sample of IceCube DeepCore and report on the latest measurement of atmospheric neutrino oscillations obtained with data recorded between 2011-2019. The sample includes significant improvements in data calibration, detector simulation, and data processing, and the analysis benefits from a detailed treatment of systematic uncertainties, with significantly higher level of detail since our last study. By measuring the relative fluxes of neutrino flavors as a function of their reconstructed energies and arrival directions we constrain the atmospheric neutrino mixing parameters to be $\sin^2胃_{23} = 0.51\pm 0.05$ and $螖m^2_{32} = 2.41\pm0.07\times 10^{-3}\mathrm{eV}^2$, assuming a normal mass ordering. The resulting 40\% reduction in the error of both parameters with respect to our previous result makes this the most precise measurement of oscillation parameters using atmospheric neutrinos. Our results are also compatible and complementary to those obtained using neutrino beams from accelerators, which are obtained at lower neutrino energies and are subject to different sources of uncertainties. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2304.12236v2-abstract-full').style.display = 'none'; document.getElementById('2304.12236v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 8 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 24 April, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2209.03042">arXiv:2209.03042</a> <span> [<a href="https://arxiv.org/pdf/2209.03042">pdf</a>, <a href="https://arxiv.org/format/2209.03042">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Machine Learning">cs.LG</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/17/11/P11003">10.1088/1748-0221/17/11/P11003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Graph Neural Networks for Low-Energy Event Classification & Reconstruction in IceCube </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbasi%2C+R">R. Abbasi</a>, <a href="/search/physics?searchtype=author&query=Ackermann%2C+M">M. Ackermann</a>, <a href="/search/physics?searchtype=author&query=Adams%2C+J">J. Adams</a>, <a href="/search/physics?searchtype=author&query=Aggarwal%2C+N">N. Aggarwal</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J+A">J. A. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Ahlers%2C+M">M. Ahlers</a>, <a href="/search/physics?searchtype=author&query=Ahrens%2C+M">M. Ahrens</a>, <a href="/search/physics?searchtype=author&query=Alameddine%2C+J+M">J. M. Alameddine</a>, <a href="/search/physics?searchtype=author&query=Alves%2C+A+A">A. A. Alves Jr.</a>, <a href="/search/physics?searchtype=author&query=Amin%2C+N+M">N. M. Amin</a>, <a href="/search/physics?searchtype=author&query=Andeen%2C+K">K. Andeen</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+T">T. Anderson</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Arg%C3%BCelles%2C+C">C. Arg眉elles</a>, <a href="/search/physics?searchtype=author&query=Ashida%2C+Y">Y. Ashida</a>, <a href="/search/physics?searchtype=author&query=Athanasiadou%2C+S">S. Athanasiadou</a>, <a href="/search/physics?searchtype=author&query=Axani%2C+S">S. Axani</a>, <a href="/search/physics?searchtype=author&query=Bai%2C+X">X. Bai</a>, <a href="/search/physics?searchtype=author&query=V.%2C+A+B">A. Balagopal V.</a>, <a href="/search/physics?searchtype=author&query=Baricevic%2C+M">M. Baricevic</a>, <a href="/search/physics?searchtype=author&query=Barwick%2C+S+W">S. W. Barwick</a>, <a href="/search/physics?searchtype=author&query=Basu%2C+V">V. Basu</a>, <a href="/search/physics?searchtype=author&query=Bay%2C+R">R. Bay</a>, <a href="/search/physics?searchtype=author&query=Beatty%2C+J+J">J. J. Beatty</a>, <a href="/search/physics?searchtype=author&query=Becker%2C+K+-">K. -H. Becker</a> , et al. (359 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2209.03042v3-abstract-short" style="display: inline;"> IceCube, a cubic-kilometer array of optical sensors built to detect atmospheric and astrophysical neutrinos between 1 GeV and 1 PeV, is deployed 1.45 km to 2.45 km below the surface of the ice sheet at the South Pole. The classification and reconstruction of events from the in-ice detectors play a central role in the analysis of data from IceCube. Reconstructing and classifying events is a challen… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.03042v3-abstract-full').style.display = 'inline'; document.getElementById('2209.03042v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2209.03042v3-abstract-full" style="display: none;"> IceCube, a cubic-kilometer array of optical sensors built to detect atmospheric and astrophysical neutrinos between 1 GeV and 1 PeV, is deployed 1.45 km to 2.45 km below the surface of the ice sheet at the South Pole. The classification and reconstruction of events from the in-ice detectors play a central role in the analysis of data from IceCube. Reconstructing and classifying events is a challenge due to the irregular detector geometry, inhomogeneous scattering and absorption of light in the ice and, below 100 GeV, the relatively low number of signal photons produced per event. To address this challenge, it is possible to represent IceCube events as point cloud graphs and use a Graph Neural Network (GNN) as the classification and reconstruction method. The GNN is capable of distinguishing neutrino events from cosmic-ray backgrounds, classifying different neutrino event types, and reconstructing the deposited energy, direction and interaction vertex. Based on simulation, we provide a comparison in the 1-100 GeV energy range to the current state-of-the-art maximum likelihood techniques used in current IceCube analyses, including the effects of known systematic uncertainties. For neutrino event classification, the GNN increases the signal efficiency by 18% at a fixed false positive rate (FPR), compared to current IceCube methods. Alternatively, the GNN offers a reduction of the FPR by over a factor 8 (to below half a percent) at a fixed signal efficiency. For the reconstruction of energy, direction, and interaction vertex, the resolution improves by an average of 13%-20% compared to current maximum likelihood techniques in the energy range of 1-30 GeV. The GNN, when run on a GPU, is capable of processing IceCube events at a rate nearly double of the median IceCube trigger rate of 2.7 kHz, which opens the possibility of using low energy neutrinos in online searches for transient events. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2209.03042v3-abstract-full').style.display = 'none'; document.getElementById('2209.03042v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 October, 2022; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 September, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Prepared for submission to JINST</span> </p> </li> 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