Ch. Kullenberg

Monte Carlo method for constructing confidence intervals with unconstrained and constrained nuisance parameters in the NOvA experiment

M. A. Acero, B. S. Acharya, P. Adamson, Leonidas Aliaga et autres

Abstract Measuring observables to constrain models using maximum-likelihood estimation is fundamental to many physics experiments. Wilks' theorem provides a simple way to construct confidence intervals on model parameters, but it only applies under certain conditions. These conditions, such as nested hypotheses and …

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Measurement of ν μ charged-current inclusive π 0 production in the NOvA near detector

M. A. Acero, P. Adamson, Gady Agam, Leonidas Aliaga et autres

Cross sections for the interaction ${\ensuremath{\nu}}_{\ensuremath{\mu}}A\ensuremath{\rightarrow}{\ensuremath{\mu}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}X$ with neutrino energies between 1 and 5 GeV are measured using a sample of 165,000 selected events collected in the NOvA experiment's near detector, a hydrocarbon-based detector exposed to the Neutrinos from the Main Injector beam …

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Measurement of the double-differential muon-neutrino charged-current inclusive cross section in the NOvA near detector

M. A. Acero, P. Adamson, Leonidas Aliaga, Н. Анфимов et autres

We report cross-section measurements of the final-state muon kinematics for ${\ensuremath{\nu}}_{\ensuremath{\mu}}$ charged-current interactions in the NOvA near detector using an accumulated $8.09\ifmmode\times\else\texttimes\fi{}{10}^{20}$ protons on target in the NuMI beam. We present the results as a double-differential cross section in the observed outgoing …

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Measurement of the ν e -Nucleus Charged-Current Double-Differential Cross Section at ⟨ E ν ⟩ = 2.4 GeV Using NOvA

M. A. Acero, P. Adamson, Leonidas Aliaga, Н. Анфимов et autres

The inclusive electron neutrino charged-current cross section is measured in the NOvA near detector using 8.02×10^{20} protons-on-target in the NuMI beam. The sample of GeV electron neutrino interactions is the largest analyzed to date and is limited by ≃17% systematic rather than …

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Improved measurement of neutrino oscillation parameters by the NOvA experiment

M. A. Acero, P. Adamson, Leonidas Aliaga, Н. Анфимов et autres

We present new ν μ → ν e , ν μ → ν μ , νμ → νe , and νμ → νμ oscillation measurements by the NOvA experiment, with a 50% increase in neutrino-mode beam exposure over the previously reported results.The …

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Monte Carlo method for constructing confidence intervals with unconstrained and constrained nuisance parameters in the NOvA experiment

M. A. Acero, Bijaya Acharya, P. Adamson, L. Aliaga et autres

Measuring observables to constrain models using maximum-likelihood estimation is fundamental to many physics experiments. Wilks' theorem provides a simple way to construct confidence intervals on model parameters, but it only applies under certain conditions. These conditions, such as nested hypotheses and unbounded …

Measurement of the $ν_e-$Nucleus Charged-Current Double-Differential Cross Section at $\left< E_ν \right> = $ 2.4 GeV using NOvA

M. A. Acero, P. Adamson, L. Aliaga, Н. Анфимов et autres

The inclusive electron neutrino charged-current cross section is measured in the NOvA near detector using $8.02\times10^{20}$ protons-on-target (POT) in the NuMI beam. The sample of GeV electron neutrino interactions is the largest analyzed to date and is limited by $\simeq$ 17\% systematic …

Search for Active-Sterile Antineutrino Mixing Using Neutral-Current Interactions with the NOvA Experiment

M. A. Acero, P. Adamson, L. Aliaga, N. Anfimov et autres

This Letter reports results from the first long-baseline search for sterile antineutrinos mixing in an accelerator-based antineutrino-dominated beam. The rate of neutral-current interactions in the two NOvA detectors, at distances of 1 and 810 km from the beam source, is analyzed using …

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Extended search for supernovalike neutrinos in NOvA coincident with LIGO/Virgo detections

M. A. Acero, P. Adamson, Leonidas Aliaga, Н. Анфимов et autres

A search is performed for supernovalike neutrino interactions coincident with 76 gravitational wave events detected by the LIGO/Virgo Collaboration. For 40 of these events, full readout of the time around the gravitational wave is available from the NOvA Far Detector. For these …

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Seasonal variation of multiple-muon cosmic ray air showers observed in the NOvA detector on the surface

M. A. Acero, P. Adamson, Leonidas Aliaga, Н. Анфимов et autres

We report the rate of cosmic ray air showers with multiplicities exceeding 15 muon tracks recorded in the NOvA Far Detector between May 2016 and May 2018. The detector is located on the surface under an overburden of 3.6 meters water equivalent. …

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Search for slow magnetic monopoles with the NOvA detector on the surface

M. A. Acero, P. Adamson, Leonidas Aliaga, T. Alion et autres

We report a search for a magnetic monopole component of the cosmic-ray flux in a 95-day exposure of the NOvA experiment's Far Detector, a 14 kt segmented liquid scintillator detector designed primarily to observe GeV-scale electron neutrinos. No events consistent with monopoles …

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Measurement of neutrino-induced neutral-current coherent π0 production in the NOvA near detector

M. A. Acero, P. Adamson, Leonidas Aliaga, T. Alion et autres

The cross section of neutrino-induced neutral-current coherent ${\ensuremath{\pi}}^{0}$ production on a carbon-dominated target is measured in the NOvA near detector. This measurement uses a narrow-band neutrino beam with an average neutrino energy of 2.7 GeV, which is of interest to ongoing and …

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