The GENIE Neutrino Monte Carlo Generator: Physics and User Manual

Andreopoulos, C.; Barry, C.; Dytman, S. A.; Gallagher, H.; Golan, T.; Hatcher, R.; Perdue, G. N.; Yarba, J.

doi:10.2172/1264018

Cited by 137 publications

(204 citation statements)

References 16 publications

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“…We find that the uncertainty on the variable model parameters can be significantly reduced with respect to the nominal GENIE parameter uncertainties [45], which were necessarily large to cover the disagreement between the published ANL and BNL datasets. A similar conclusion was found in the context of a different model in Ref.…”

Section: Discussionmentioning

confidence: 87%

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Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data

Rodrigues¹,

Wilkinson²,

McFarland³

2016

Eur. Phys. J. C

100

138

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The longstanding discrepancy between bubble chamber measurements of ν μ -induced single pion production channels has led to large uncertainties in pion production cross section parameters for many years. We extend the reanalysis of pion production data in deuterium bubble chambers where this discrepancy is solved (Wilkinson et al., PRD 90, 112017 2014) to include the ν μ n → μ − pπ 0 and ν μ n → μ − nπ + channels, and use the resulting data to fit the parameters of the GENIE pion production model. We find a set of parameters that can describe the bubble chamber data better than the GENIE default parameters, and provide updated central values and reduced uncertainties for use in neutrino oscillation and cross section analyses which use the GENIE model. We find that GENIE's non-resonant background prediction has to be significantly reduced to fit the data, which may help to explain the recent discrepancies between simulation and data observed by the MINERνA coherent pion and NOνA oscillation analyses.

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Section: Discussionmentioning

confidence: 87%

“…In GENIE, there are a number of systematic parameters which can be varied to change the single pion production model [45]. These parameters are summarized in Table 1.…”

Section: Genie Single Pion Production Modelmentioning

confidence: 99%

Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data

Rodrigues¹,

Wilkinson²,

McFarland³

2016

Eur. Phys. J. C

100

138

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“…Recently, the GENIE [20] neutrino generator was modified to include atmospheric neutrino fluxes and some preliminary analysis has been done by the INO collaboration. In both cases, the Honda-3D fluxes have been used.…”

Section: Choice Of Event Generatormentioning

confidence: 99%

Pinning down neutrino oscillation parameters in the 2–3 sector with a magnetised atmospheric neutrino detector: a new study

Mohan

Indumathi

2017

Eur. Phys. J. C

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We determine the sensitivity to neutrino oscillation parameters from a study of atmospheric neutrinos in a magnetised detector such as the ICAL at the proposed India-based Neutrino Observatory. In such a detector, which can separately count ν μ and ν μ -induced events, the relatively smaller (about 5%) uncertainties on the neutrinoantineutrino flux ratios translate to a constraint in the χ 2 analysis that results in a significant improvement in the precision with which neutrino oscillation parameters such as sin 2 θ 23 can be determined. Such an effect is unique to all magnetisable detectors and constitutes a great advantage in determining neutrino oscillation parameters using such detectors. Such a study has been performed for the first time here. Along with an increase in the kinematic range compared to earlier analyses, this results in sensitivities to oscillation parameters in the 2-3 sector that are comparable to or better than those from accelerator experiments where the fluxes are significantly higher. For example, the 1σ precisions on sin 2 θ 23 and | m 2 32(31) | achievable for 500 kton year exposure of ICAL are ∼9 and ∼2.5%, respectively, for both normal and inverted hierarchies. The mass hierarchy sensitivity achievable with this combination when the true hierarchy is normal (inverted) for the same exposure is χ 2 ≈ 8.5 ( χ 2 ≈ 9.5).

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“…Neutrino interactions are simulated using the GENIE 2.6.2 [35] event generator. The propagation of particles in the detector and the corresponding detector response are simulated with GEANT4 [36].…”

mentioning

confidence: 99%

Measurement of muon plus proton final states inνμinteractions on hydrocarbon at⟨Eν⟩=

Walton¹,

Betancourt²,

Aliaga³

et al. 2015

Phys. Rev. D

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A study of charged-current muon neutrino scattering on hydrocarbon in which the final state includes a muon, at least one proton, and no pions is presented. Although this signature has the topology of neutrino quasielastic scattering from neutrons, the event sample contains contributions from quasielastic and inelastic processes where pions are absorbed in the nucleus. The analysis accepts events with muon production angles up to 70 • and proton kinetic energies greater than 110 MeV. The cross section, when based completely on hadronic kinematics, is well-described by a relativistic Fermi gas nuclear model including the neutrino event generator modeling for inelastic processes and particle transportation through the nucleus. This is in contrast to the quasielastic cross section based on muon kinematics, which is best described by an extended model that incorporates multinucleon correlations. This measurement guides the formulation of a complete description of neutrino-nucleus interactions that encompasses the hadronic as well as the leptonic aspects of this process.

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The GENIE Neutrino Monte Carlo Generator: Physics and User Manual

Cited by 137 publications

References 16 publications

Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data

Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data

Pinning down neutrino oscillation parameters in the 2–3 sector with a magnetised atmospheric neutrino detector: a new study

Measurement of muon plus proton final states inνμinteractions on hydrocarbon at⟨Eν⟩=

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