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SUMMARY:Nuclear Dependence in Antineutrino Scattering at MINERvA\, from A 
 to Z (C to Pb)
DTSTART:20260512T130000Z
DTEND:20260512T150000Z
DTSTAMP:20260603T135600Z
UID:indico-event-17904@indico.global
DESCRIPTION:Speakers: Anezka Klustova\n\nUnderstanding how neutrinos and a
 ntineutrinos interact with nuclei in the few-GeV energy range relevant for
  accelerator neutrino experiments is essential for precise measurements o
 f neutrino oscillations. Nuclear effects can change which particle emerge 
 from an interaction and with what energies\, leading to biases in reconst
 ructed neutrino energies if not modelled correctly.\nMINERvA is a high-sta
 tistics cross-section experiment designed to study these effects using mul
 tiple nuclear targets. I will present MINERvA's first inclusive charged-c
 urrent antineutrino cross section measurements on carbon\, hydrocarbon\, i
 ron\, and lead\, probing all interaction modes\, with substantial contribu
 tions from the largely unconstrained transition region between resonance p
 roduction and deep-inelastic scattering. I report both absolute cross sec
 tions and their ratios to hydrocarbon\, as a function of the outgoing anti
 muon's transverse momentum\, using the full MINERvA antineutrino dataset 
 at a mean energy of ~6 GeV. Typical uncertainties are 5–10% for the abs
 olute cross sections and 2–5% for the ratios.\nThe results reveal clear 
 discrepancies with current neutrino interaction models\, most pronounced a
 t low transverse momentum but extending across the full measured range\, 
 indicating missing or mis-modelled nuclear effects\, particularly for heav
 ier nuclei.  Because the energy and target ranges overlap with those of D
 UNE and Hyper-Kamiokande\, these measurements provide important benchmarks
  and constraints on neutrino interaction models and nuclear effects for f
 uture oscillation analyses.\nPre-print: https://arxiv.org/abs/2604.07091 
 \nhttps://cern.zoom.us/j/61585612649?pwd=FoLJQF7A3uVaG1ss9JoguyXrFeYHYY.1\
 npasscode 60292128\n\nhttps://indico.global/event/17904/
URL:https://indico.global/event/17904/
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