Neutrino News
This week's neutrino news is dominated by hardware and outreach: DUNE stress-tested a prototype detector module to 300,000 volts and is developing AI-based triggers ahead of its data-taking phase, while NOvA reported a high-statistics measurement of antineutrino-hydrogen scattering and IceCube described tools for using atmospheric neutrinos to probe the Earth's interior. On the theory side, published work spans global limits on the Majorana neutrino mass from neutrinoless double-beta decay, a benchmark of interaction models for argon-based detectors, and new links between neutrino-mass generation and dark matter.
Three-flavour oscillation, schematic — not a fit, and not to scale.
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Last successful update: 15 August 2026, 07:32 CEST.
Running and forthcoming experiments: recent measurements, results expected soon, construction and commissioning.
Researchers on the DUNE experiment are developing AI-based automated trigger systems to sort through the very large volumes of data the detector will produce, aiming to identify neutrino interactions, flag signs of a stellar explosion, and spot detector problems. The effort draws on decades of machine-learning work at Fermilab and is meant to prepare the collaboration for its data-analysis phase.
A prototype module for the DUNE far detector was put through an extreme high-voltage stress trial, reaching 300,000 volts, ahead of its eventual installation deep underground in South Dakota. The test forms part of the collaboration's effort to establish the operating limits of the detector technology before construction of the full experiment.
Atmospheric neutrinos, produced in cosmic-ray-induced air showers, are being used by the IceCube collaboration to probe the structure of the Earth's interior, complementing traditional seismic and gravitational measurements.
A new reconstruction tool called WavePID identifies neutrino interactions in the IceCube detector from the nanosecond-level timing structure of the light patterns produced when a neutrino interacts with the ice.
At the South Pole, winterovers continued calibration work for the IceCube Upgrade alongside routine detector maintenance through the Antarctic winter.
Using the near detector in the NuMI beam, the NOvA collaboration measured the muon antineutrino charged-current quasi-elastic cross section on hydrogen, selecting 35,509 signal events from a 1.2×10^21 protons-on-target exposure — the highest-statistics sample of antineutrino-hydrogen interactions measured to date. Backgrounds from interactions on heavier nuclei were constrained using dedicated data control samples, reducing the associated systematic uncertainties.
Photographs reproduced unmodified except for resizing to the width of the page.
Recently published papers, each with its arXiv preprint, INSPIRE record and journal DOI.
Combining likelihoods from the current generation of neutrinoless double-beta decay experiments with nuclear matrix elements computed ab initio from chiral effective field theory, the authors derive global Bayesian limits on the Majorana neutrino mass. Unlike phenomenological nuclear models, the ab initio calculation indicates that current-generation experiments have likely not yet reached the sensitivity needed to probe the mass region of interest.
This paper presents TAMBO, a proposed mountain-based observatory that would detect tau neutrinos via air showers, aiming to map the high-energy neutrino sky in an energy range and angular region not well covered by existing telescopes. The authors argue the approach could also give access to new physics through tau neutrino interactions.
Using the GENIE event generator, the authors benchmark a range of pionless neutrino-argon interaction models, including different nucleon form factors and nuclear ground-state treatments, against recent MicroBooNE charged-current measurements. They find that some model choices are much better separated by the data than others, providing concrete guidance for the interaction models used by current and upcoming argon-based neutrino experiments.
The paper proposes a secluded dark-matter model with an extra U(1) gauge symmetry in which a Dirac dark-matter candidate, three heavy neutrinos, and a singlet scalar share the same Yukawa structure that generates light neutrino masses. Because the dark sector couples to the Standard Model only through this neutrino-mass-generating loop, the scalar mixing angle is tied directly to the heavy-neutrino masses, linking dark-matter phenomenology to the seesaw sector.
Working in R-parity-violating supersymmetry with a split slepton spectrum, the authors classify which trilinear LLE coupling patterns can generate neutrino non-standard interactions and confront the resulting parameter space with existing experimental constraints. They find percent-level non-standard interactions can be realised in some channels, reaching ϵ_ee ≈ 8% and ϵ_μμ ≈ 3.8% in the largest cases, with ϵ_μτ ≈ -0.3%, while other entries remain restricted to well below the percent level.
The authors compare the gamma-ray response of Daya Bay's gadolinium-loaded liquid scintillator, JUNO's liquid scintillator, and the reference scintillator EJ-309, measured under identical conditions with Cs-137, Na-22, and Am-241 sources. Using Compton-edge positions extracted from the Cs-137 spectra, they determine the relative light yields to be (60.7 ± 0.2)% for the Daya Bay scintillator and (63.7 ± 0.2)% for the JUNO scintillator, each relative to EJ-309.
From the INSPIRE-HEP conference database and from Neutrino Unbound, the conference list maintained at INFN Torino by S. Gariazzo, C. Giunti and M. Laveder.
The flagship series the field plans around — ICHEP, Moriond, LHCP, Quark Matter, SUSY and their neighbours.
Dots sit on the venue city (coordinates from OpenStreetMap; a venue that cannot be located falls back to the centre of its host country). A filled dot means the meeting is still ahead; a number, several meetings at the same place. Zoom in to see the venue names.
The most relevant new preprints of the last few days, ranked by keyword. The full curated digest, with abstracts and a note on why each paper matters, is on its own page.
hep-phhep-exhep-exhep-phastro-ph.HEhep-phhep-phastro-ph.COhep-phastro-ph.COhep-exhep-thWhere to look things up: experiments, parameters, reviews, databases.
Official collaboration pages for the running and upcoming experiments.
Where the current oscillation parameters and their uncertainties come from.
Pedagogical entry points; arXiv identifiers checked against the abstract pages.
Literature, data and simulation tools.
News and general-audience coverage of particle and neutrino physics.