Neutral current neutrino–nucleon scattering within a consistent isobar model and the resonance-background interference

Mariano, A.; Barbero, César Alberto; Castro, G. López

doi:10.1016/j.nuclphysa.2010.11.002

Cited by 19 publications

(17 citation statements)

References 40 publications

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“…In our model we incorporate explicitly resonance states ∆(1232), and N * (1440), N * (1520), N * (1535), the so called second resonance region, with a consistent model for the spin- 3 2 fields that reproduced satisfactorily the data for the ANL experiment in the range W πN < ∼ 1.6 GeV [11]. The effect of hadron structure when W πN grows and of more energetic resonances, not introduced explicitly in the model, is included throught a global effective hadronic FF in consistence with previous calculations for neutral currents(NC) [25]. Our model reproduces well the data of Refs.…”

Section: Introductionmentioning

confidence: 77%

“…We resume here some general concepts and let specific formulae for an Appendix. We are interested in describing here two observables for the charged current (CC) νN → µ + N π and νN → µ − N π modes, since neutral current (NC) processes in the present W πN -range, where analyzed previously [25]. The total cross section for single pion weak production on nucleons, where we use νN center mass (CM) variables since it is easier to look for their limits, reads (we take p ν = E ν k along the z-axis)…”

Section: Total and Differential Cross Sectionsmentioning

confidence: 99%

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Neutrino-induced single pion production and the reanalyzed bubble chamber data

2022

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In this work we report the calculation of the charged current total and differential cross sections for weak pion-production with neutrinos and antineutrinos, with the final pion-nucleon pair invariant mass W πN < ∼ 2GeV. Our results are compared with the recent reanalyzed data from the old bubble chamber experiments, that solved the discrepancy between the ANL and BNL data. We implement a model previously tested for the cuts W πN < 1.4, 1.6 Gev which includes explicitly resonances in the first and second resonance regions, within different approaches for the resonances self energy and 3 2 -vertexes and propagators, a fact not usually analyzed. Our model leans on consistent effective Lagrangians that generate resonant amplitudes together non resonant plus resonant backgrounds. Effects of hadrons finite extension and more energetic resonances corresponding to the emitted pion-nucleon invariant mass in the 1.6 < W πN < 2 GeV region, are taking into account using appropiate form factors in consistency with previous results on neutral current pion production calculations. Our results reproduce well the reanalysed data without cuts and are compared with another models.

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Section: Introductionmentioning

confidence: 77%

Section: Total and Differential Cross Sectionsmentioning

confidence: 99%

Neutrino-induced single pion production and the reanalyzed bubble chamber data

2022

Self Cite

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“…Therefore, in the original MK model, a virtual form factor (F vir ) was introduced to eliminate the nonresonant contributions smoothly across the W ∈ ½1.4-1.6 GeV region. However, there are other approaches that extend the nonresonant continuum to the entire region [18,19].…”

Section: Update Of Mk Modelmentioning

confidence: 99%

Single pion production in electron-nucleon interactions

Kabirnezhad

2020

Phys. Rev. D

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This paper presents an update to the MK model [M. Kabirnezhad, Phys. Rev. D 97, 013002 (2018)], which was developed to describe single pion production in neutrino-nucleon interactions. Originally, the MK model used the helicity amplitudes and the hadronic current form factors of the Rein and Sehgal model [Ann. Phys. (N.Y.) 50, 189 (1968)]. The update includes a new definition for the helicity amplitudes in the first and second resonance regions and new vector-current form factors. Fits to electron-proton scattering data were used to determine these vector-current form factors and to assign errors to the constrained free parameters of the model.

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“…Models of SPP cross section processes are required to accurately predict the number and topology of observed final state particles in neutrino interactions, and to help establish the relationship between neutrino energy and energy deposition in a neutrino detector. These predictions incorporate a model of the neutrino-nucleon interaction [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17], and a model of the nucleus [18][19][20] in which the nucleon resides, and which then must be traversed by the interaction's final-state particles.…”

Section: Introductionmentioning

confidence: 99%

Single pion production in electron-proton interactions

Kabirnezhad¹

2022

Preprint

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This paper presents an extension of the MK single pion production model [1,2] to high hadron invariant mass (W ) and high momentum transfer to conform to the predictions of perturbative QCD due to quark-hadron duality. New form factors for several resonant interactions and nonresonant background in the electron-nucleon cross-sections are determined taking into account the experimental data and improved evaluation techniques. Fits to electron-proton scattering data are used to calculate the vector-current form factors, and to assign uncertainties to the constrained free parameters of the model. The results from this work can be used to determine the vector current in the corresponding neutrino-nucleon cross-sections, which are an important input for event generators in long baseline neutrino oscillation measurements.

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Neutral current neutrino–nucleon scattering within a consistent isobar model and the resonance-background interference

Cited by 19 publications

References 40 publications

Neutrino-induced single pion production and the reanalyzed bubble chamber data

Neutrino-induced single pion production and the reanalyzed bubble chamber data

Single pion production in electron-nucleon interactions

Single pion production in electron-proton interactions

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