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arXiv · 2606.14263

A Novel Approach to Short Baseline Oscillation Searches Using Neutrino Tagging with nuSCOPE

Abstract

We present the first study of short-baseline neutrino oscillation searches using a tagged neutrino beamline, taking the proposed nuSCOPE facility at CERN as a benchmark. In this Letter we demonstrate that tagged neutrino beams, where the neutrino flavor, energy, and propagation distance are determined with exceptional event-by-event precision, provide a new experimental approach to search for non-standard neutrino oscillations. We evaluate the sensitivity to sterile-neutrino-induced oscillations in the $\nu_\mu$ disappearance, $\nu_\mu \rightarrow \nu_e$ appearance, and $\nu_e$ disappearance channels, demonstrating the ability to probe multiple flavor transitions and both appearance and disappearance modes within a single experiment. Our results show that tagged beams enable sensitivity improvements to mass-squared splittings spanning several orders of magnitude while substantially reducing the dependence on neutrino flux predictions that limits conventional searches. We find that nuSCOPE can probe a broad region of parameter space motivated by existing anomalies and extend coverage into previously unexplored territory, demonstrating the strong potential of tagged neutrino beams for precision oscillation physics.

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Adrien Blanchet, César Jesús-Valls, Animesh Chatterjee, Stephen Dolan, Pierre Granger, Laura Munteanu. 2026-06-12. A Novel Approach to Short Baseline Oscillation Searches Using Neutrino Tagging with nuSCOPE. https://arxiv.org/abs/2606.14263

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