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Long-lived particle production through the DUNE-PRISM concept

Kevin J. Kelly* and Mudit Rai†

  • Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A&M University, College Station, Texas, USA

  • *Contact author: kjkelly@tamu.edu
  • †Contact author: muditrai@tamu.edu
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Phys. Rev. D 113, 075028 – Published 21 April, 2026

DOI: https://doi.org/10.1103/dphb-txmh

Abstract

Accelerator-based neutrino experiments offer a competitive environment to search for long-lived particles with sub-GeV masses. Yet, many theoretical models involving such particles predict very similar phenomenology and nearly identical final-state signatures. In view of this, we study the capabilities of upcoming experiments—specifically the DUNE near detectors—to distinguish between different classes of long-lived particles and the mechanisms by which they are produces. We expound how the experiment’s excellent energy resolution, combined with the possibility to move the detector off-axis (the DUNE-PRISM concept), work in tandem to improve the discrimination power.

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Phys. Rev. D 113, 075028– Published 21 April, 2026
  • Received 8 January 2026
  • Accepted 30 March 2026
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