NOvA · 2026

Measurement of π0 production in ν¯μ charged-current interactions in the NOvA near detector

Phys.Rev.D 113 112008 · 10.1103/t6vj-7hht

Measurements

CurrentFlavorTargetTopologyTypeObservablesEnergy
CCν̄μCH2CC1π0single-diffnumubar CC pi0 production, differential~2 GeV (NuMI)

Abstract

We present a high-statistics measurement of muon antineutrino-induced charged-current neutral pion production on a hydrocarbon target using the NOvA Near Detector. The differential cross sections as functions of the momenta and angles of the outgoing pion and muon, the squared four-momentum transfer, and the invariant mass of the hadronic system at an average neutrino energy of 2~GeV are measured and compared with predictions from various neutrino interaction models. The results agree with the GENIE prediction but suggest that other models underestimate the cross section in the ΔΔ(1232) resonance region. These results represent the most precise measurement of antineutrino-induced neutral pion production to date.

Citation

@article{NOvA:2025vdg,
  collaboration = "NOvA",
  title = "{Measurement of <math display="inline"><msup><mi>π</mi><mn>0</mn></msup></math> production in <math display="inline"><msub><mover accent="true"><mi>ν</mi><mo stretchy="false">¯</mo></mover><mi>μ</mi></msub></math> charged-current interactions in the NOvA near detector}",
  eprint = "2511.05807",
  doi = "10.1103/t6vj-7hht",
  journal = "Phys.Rev.D",
  volume = "113",
  pages = "112008",
  year = "2026",
}