2022/02/09 by D. F. Tamayo Agudelo, A. Mariano, D. E. Jaramillo Arango
Physics and Astronomy · #Decoupling (probability) #Formalism (music) #Mathematical physics #Neutrino #Neutrino Physics Research #Nuclear physics #Nucleon #Parametrization (atmospheric modeling) #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Propagator #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Resonance (particle physics) #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.105.033008
Manuscript has been accepted for publication as a Regular Article in Physical Review D
arxiv created 2022/02/09 · openalex publication_date 2022/02/22 · arxiv updated 2022/03/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this work we report the calculation of the total cross section for pion-production by the dispersion of neutrinos on nucleons. We use a consistent formalism for the intermediate resonance states of spin 3/2 , taking care on the conditions imposed by the invariance on contact transformations and using the Sachs parametrization for the form factors. In addition, we incorporate states in the second resonance region up to 1.6 GeV and implement different approaches for all the dressed resonance propagators. In addition to the Δ(1232), we include the N^*(1440),N^*(1535)and N^*(1520) resonance contributions, and it is shown that this inclusion improve the description of the total cross section regards a model where only the Δ(1230) resonance is considered. Also results for antineutrinos are properly described.