Electroweak single-pion production off the nucleon: from threshold to high invariant masses

Abstract

[Background] Neutrino-induced single-pion production (SPP) provides an important contribution to neutrino-nucleus interactions, ranging from intermediate to high energies. There exists a good number of low-energy models in the literature to describe the neutrinoproduction of pions in the region around the Delta resonance. Those models consider only lowest-order interaction terms and, therefore, fail in the high-energy region (pion-nucleon invariant masses, $W$>2 GeV). [Purpose] Our goal is to develop a model for electroweak SPP off the nucleon, which is applicable to the entire energy range of interest for present and future neutrino-oscillation experiments. [Method] We start with the low-energy model of [Phys.Rev.D76,033005(2007)], which includes resonant contributions and background terms derived from the pion-nucleon Lagrangian of chiral-perturbation theory. Then, from the background contributions, we build a high-energy model using a Regge approach. The low- and high-energy models are combined, in a phenomenological way, into a hybrid model. [Results] The Hybrid model is identical to the low-energy model in the low-W region, but, for W>2 GeV, it implements the desired high-energy behavior dictated by Regge theory. We have tested the high-energy model by comparing with one-pion production data from electron and neutrino reactions. The Hybrid model is compared with electron-proton scattering data, with neutrino SPP data and with the predictions of the NuWro Monte Carlo event generator. [Conclusions] Our model is able to provide satisfactory predictions of the electroweak one-pion production cross section from pion threshold to high $W$. Further investigation and more data are needed to better understand the mechanisms playing a role in the electroweak SPP process in the high-W region, in particular, those involving the axial current contributions.

arXiv comment30 pages, 21 figures. Includes comparison with NuWro predictions. New references added

References in corpus (75)

• High-Energy-Physics Event Generation with PYTHIA 6.1
• Improved Search for ${\bar{\nu }}_{\mu }\to {\bar{\nu }}_e$ Oscillations in the MiniBooNE Experiment
• Observation of Electron Neutrino Appearance in a Muon Neutrino Beam
• A unified approach for nucleon knock-out, coherent and incoherent pion production in neutrino interactions with nuclei
• Meson-exchange Model for $\pi N$ scattering and $\gamma N->\pi N$ reaction
• Weak Pion Production off the Nucleon
• Using Electron Scattering Superscaling to predict Charge-changing Neutrino Cross Sections in Nuclei
• Electron- and neutrino-nucleus scattering from the quasielastic to the resonance region
• Measurement of Neutrino-Induced Charged-Current Charged Pion Production Cross Sections on Mineral Oil at E${}_{\nu }\sim 1\text{GeV}$
• Progress and open questions in the physics of neutrino cross sections
• Resonance production by neutrinos: The second resonance region
• Dynamical Model of Weak Pion Production Reactions
• Reanalysis of bubble chamber measurements of muon-neutrino induced single pion production
• Extensions of Superscaling from Relativistic Mean Field Theory: the SuSAv2 Model
• Search for coherent charged pion production in neutrino-carbon interactions
• A reggeized model for eta and eta-prime photoproduction
• Neutrino Interactions with Nucleons and Nuclei: Importance for Long-Baseline Experiments
• $C_5^A$ axial form factor from bubble chamber experiments
• Measurement of the Inclusive NuMu Charged Current Cross Section on Carbon in the Near Detector of the T2K Experiment
• Modeling Deep Inelastic Cross Sections in the Few GeV Region
• Measurement of ${\nu }_{\mu }$-induced charged-current neutral pion production cross sections on mineral oil at $E_{\nu }\in 0.5-2.0$ GeV
• Measurement of ν_μand \barν_μinduced neutral current single ${\pi }^0$ production cross sections on mineral oil at E_νO(1 GeV)
• Dynamical coupled-channels model for neutrino-induced meson productions in resonance region
• Form factors and photoproduction amplitudes
• Constraining the GENIE model of neutrino-induced single pion production using reanalyzed bubble chamber data
• Measurement of inclusive charged current interactions on carbon in a few-GeV neutrino beam
• Forward-angle K+ Lambda photoproduction in a Regge-plus-resonance approach
• Charged Pion Production in ${\nu }_{\mu }$ Interactions on Hydrocarbon at $⟨E_{\nu }⟩$= 4.0 GeV
• PCAC and the Deficit of Forward Muons in pi^+ Production by Neutrinos
• Single pion production in neutrino nucleus scattering
• $\nu d\to {\mu }^{-}{\Delta }^{++}n$ Reaction and Axial Vector $N-\Delta$ Coupling
• Cross sections for neutrino and antineutrino induced pion production on hydrocarbon in the few-GeV region using MINERvA
• One pion production in neutrino reactions: including non-resonant background
• Single neutral pion production by charged-current ${\bar{\nu }}_{\mu }$ interactions on hydrocarbon at $⟨E_{\nu }⟩=$ 3.6 GeV
• Consistent interactions for high-spin fermion fields
• Effective Lagrangian Approach to pion photoproduction from the nucleon
• Bayesian inference of the resonance content of p(gamma,K^+)Lambda
• Watson's theorem and the $N\Delta (1232)$ axial transition
• The space-time structure of hard scattering processes
• Exclusive ${\pi }^0$ electroproduction at $W>2$ GeV with CLAS
• A Bayesian analysis of kaon photoproduction with the Regge-plus-resonance model
• Finite-Energy Sum Rules in Eta Photoproduction off the Nucleon
• Neutrinoproduction of Photons and Pions From Nucleons in a Chiral Effective Field Theory for Nuclei
• Parity Violation in Elastic Electron-Nucleon Scattering: Strangeness Content in the Nucleon
• Deep exclusive charged $\pi$ electroproduction above the resonance region
• Incoherent Pion Production in Neutrino - Deuteron Reactions
• Some implications of meson dominance in weak interactions
• Weak charged and neutral current induced one pion production off the nucleon
• Neutral current (anti)neutrino scattering: relativistic mean field and superscaling predictions
• Neutrino Induced Charged Current 1${\pi }^{+}$ Production At Intermediate Energies
• The influence of the nuclear medium on inclusive electron and neutrino scattering off nuclei
• Charged-current inclusive neutrino cross sections in the SuperScaling model including quasielastic, pion production and meson-exchange contributions
• Neutrino-induced one-pion production revisited: the ${\nu }_{\mu }n\to {\mu }^{-}n{\pi }^{+}$ channel
• Global analysis of parity-violating asymmetry data for elastic electron scattering
• Deeply inelastic pions in the exclusive reaction $p(e,e^{\prime }{\pi }^{+})n$ above the resonance region
• Neutrino induced threshold production of two pions and N^*(1440) electroweak form factors
• Neutrino-induced pion production from nuclei at medium energies
• Neutrino-induced forward meson-production reactions in nucleon resonance region
• Unitarity constraints on neutral pion electroproduction
• Relativistic description of final-state interactions in neutral-current neutrino and antineutrino cross sections
• Effect of form factors in fits to photoproduction data
• Rescattering in Meson Photoproduction off Few Body Systems
• Deep exclusive ${\pi }^{+}$ electroproduction off the proton at CLAS
• On Impact of Nuclear Effects on Weak Pion Production in Sub 1 GeV Energy Region
• Evidence for neutral-current diffractive neutral pion production from hydrogen in neutrino interactions on hydrocarbon
• $\eta$ production off the proton in a Regge-plus-chiral quark approach
• Charged pion electroproduction above the resonance region
• Strangeness content of the nucleon in quasielastic neutrino-nucleus reactions
• Unitarity constraints on charged pion photoproduction at large p_perp
• WroNG -- Wroclaw Neutrino Generator of events for single pion production
• Neutrino-Nucleus Cross Sections for Oscillation Experiments
• $K^{+}\Lambda$ electroproduction above the resonance region
• Evaluation of theoretical uncertainties in parity-violating electron scattering from nucleons and nuclei
• Parity violation in quasielastic electron-nucleus scattering within the relativistic impulse approximation
• Neutrino induced 1-pion production

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• Measurement of ${\bar{\nu }}_{\mu }$ charged-current single ${\pi }^{-}$ production on hydrocarbon in the few-GeV region using MINERvA
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• Measurement of the muon neutrino charged-current single ${\pi }^{+}$ production on hydrocarbon using the T2K off-axis near detector ND280
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• Snowmass 2021 LoI: Neutrino-induced Shallow- and Deep-Inelastic Scattering
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