Muon-neutrino-induced charged-current pion production on nuclei

Mosel, U.; Gallmeister, K.

doi:10.1103/physrevc.96.015503

Cited by 28 publications

(28 citation statements)

References 39 publications

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“…This is also found in the GiBUU prediction of Ref. [49], where it is argued that coherent pion production could provide additional strength in this region. In the comparison of the hybrid-RPWIA model with MiniBooNE and MINERvA 1π + data, pion momenta up to approximately 500 MeV were studied [30].…”

Section: B Nuwro and Final State Interactionssupporting

confidence: 73%

Modeling neutrino-induced charged pion production on water at T2K kinematics

et al. 2018

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Background: Pion production is a significant component of the signal in accelerator-based neutrino experiments. Over the last years, the MiniBooNE, T2K and MINERvA collaborations have reported a substantial amount of data on (anti)neutrino-induced pion production on the nucleus. However, a comprehensive and consistent description of the whole data set is still missing.Purpose: We aim at improving the current understanding of neutrino-induced pion production on the nucleus. To this end, the comparison of experimental data with theoretical predictions, preferably based on microscopic models, is essential to disentangle the different reaction mechanisms involved in the process.Method: To describe single-pion production (SPP) we use a hybrid model that combines a low-and a highenergy approach. The low-energy model (LEM) contains resonances and background terms. At high invariant masses, a high-energy model based on a Regge approach is employed. The model is implemented in the nucleus using the relativistic plane wave impulse approximation (RPWIA). Results:We present a comparison of the hybrid-RPWIA and LEM with the recent neutrino-induced charged current 1π + production cross section on water reported by T2K. In order to judge the impact of final-state interactions (FSI) we confront our results with those of the NuWro Monte Carlo generator. Conclusions:The hybrid-RPWIA model and NuWro compare favorably to the data, albeit that FSI are not included in the former. The need of a high-energy model at T2K kinematics is made clear. These results complement our previous work [Phys. Rev. D 97, 013004 (2018)] where we compared the models to the MINERvA and MiniBooNE 1π + data. The hybrid-RPWIA model tends to overpredict both the T2K and MINERvA data in kinematic regions where the largest suppression due to FSI is expected, and agrees remarkably well with the data in other kinematic regions. On the contrary, the MiniBooNE data is underpredicted over the whole kinematic range.

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Section: B Nuwro and Final State Interactionssupporting

confidence: 73%

Modeling neutrino-induced charged pion production on water at T2K kinematics

et al. 2018

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“…The tension between MINERvA's nuclear data and the constraints from ANL and BNL nucleon data is difficult to confidently pinpoint; the lack of lepton mass effects [51], modification to the resonance propagator in the nucleus [52,53], missing diagrams describing the non-resonant background contributions [9], dynamical coupled channels [54], interactions on correlated initial states, and the pion FSI model [1] are all part of an incomplete list of possible culprits.…”

Section: The Parameters M Resmentioning

confidence: 99%

“…There are tensions between published data from the T2K, MiniBooNE, and MINERvA experiments [1][2][3][4][5]. These tensions exist in the charged current production of both zero and one pion final states, and a model has yet to emerge that can reliably simulate all experiments at once.…”

Section: Introductionmentioning

confidence: 99%

Tuning the genie pion production model with MINERvA data

Stowell¹,

Pickering²,

Wilkinson³

et al. 2019

Phys. Rev. D

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Faced with unresolved tensions between neutrino interaction measurements at few-GeV neutrino energies, current experiments are forced to accept large systematic uncertainties to cover discrepancies between their data and model predictions. In this paper, the widely used pion production model in GENIE is compared to four MINERvA charged current pion production measurements using NUISANCE. Tunings, i.e., adjustments of model parameters, to help match GENIE to MIN-ERvA and older bubble chamber data are presented here. We find that scattering off nuclear targets as measured in MINERvA is not in good agreement with expectations based upon scattering off nucleon (hydrogen or deuterium) targets in existing bubble chamber data. An additional ad hoc correction for the low-Q 2 region, where collective nuclear effects are expected to be large, is presented. While these tunings and corrections improve the agreement of GENIE with the data, the modeling is imperfect. The development of these tunings within the NUISANCE framework allows for straightforward extensions to other neutrino event generators and models, and allows omitting and including new data sets as they become available.

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“…This reflects the fact that the pion production cross section on nuclei shows a distinct forward peaking as can directly be read off from comparing the topmost dash-dotted-dotted curve representing the fully inclusive cross section with the solid curve representing the cross section for 0-pion events (see also Fig. 5 in [10]. At the most forward angles the stuck-pion contribution is significantly larger than the 2p2h contribution.…”

Section: A C Targetmentioning

confidence: 82%

“…More recently T2K has also obtained data on pion production, * Contact e-mail: mosel@physik.uni-giessen.de both on CH [8] and on H 2 O as targets [9] in an energy range close to that of MiniBooNE. We have analyzed the latter data in [10] 1 . There we have shown that the data sets from T2K and from MINERvA, in different energy regimes and on different targets, can be described simultaneously within the same consistent theory.…”

Section: Introductionmentioning

confidence: 99%

Muon-neutrino-induced charged-current cross section without pions: Theoretical analysis

Mosel

Gallmeister

2018

Phys. Rev. C

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We calculate the charged-current cross sections obtained at the T2K near detector for ν μ -induced events without pions in the final state. The method used is quantum-kinetic transport theory. Results are shown first, as a benchmark, for electron-inclusive cross sections on 12 C and 16 O to be followed with a detailed comparison with the data measured by the T2K Collaboration on C 8 H 8 and H 2 O targets. The contribution of 2p2h processes is found to be relevant mostly for backward angles; their theoretical uncertainties are within the experimental uncertainties. Particular emphasis is then put on a discussion of events in which pions are first created but then reabsorbed. Their contribution is found to be essential at forward angles.

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Muon-neutrino-induced charged-current pion production on nuclei

Cited by 28 publications

References 39 publications

Modeling neutrino-induced charged pion production on water at T2K kinematics

Modeling neutrino-induced charged pion production on water at T2K kinematics

Tuning the genie pion production model with MINERvA data

Muon-neutrino-induced charged-current cross section without pions: Theoretical analysis

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