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Title: Pion production in neutrino interactions with nuclei

Abstract

Neutrino-induced pion production on nuclear targets is the major inelastic channel in all present-day neutrino-oscillation experiments. It has to be understood quantitatively in order to be able to reconstruct the neutrino-energy at experiments such as MiniBooNE or K2K and T2K. We report here results of cross section calculations for both this channel and for quasielastic scattering within the semiclassical GiBUU method. This method contains scattering, both elastic and inelastic, absorption and side-feeding of channels all in a unitary, common theoretical framework and code. We find that charged current quasielastic scattering (CCQE) and 1 pi production are closely entangled in actual experiments, due to final state interactions of the scattered nucleons on one hand and of the DELTA resonances and pions, on the other hand. We discuss the uncertainties in the elementary pion production cross sections from ANL and BNL. We find the surprising result that the recent 1 pi production cross section data from MiniBooNE are well described by calculations without any FSI. For higher energies we study the validity of the Bloom-Gilman quark-hadron duality for both electron- and neutrino-induced reactions. While this duality holds quite well for nucleon targets, for nuclear targets the average resonance contributions to the structuremore » function F{sub 2} are always lower than the DIS values. This result indicates a significant impact of nuclear effects on observables, reducing the cross section and structure functions by at least 30-40% and changing the form of various distributions.« less

Authors:
; ; ;  [1];  [2]
  1. Institut fuer Theoretische Physik, Universitaet Giessen (Germany)
  2. Departamento de Fisica, Centro de Fisica Computacional, Universidade de Coimbra (Portugal)
Publication Date:
OSTI Identifier:
21367075
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1222; Journal Issue: 1; Conference: NuFact09: 11. international workshop on neutrino factories, superbeams and beta beams, Chicago, IL (United States), 20-25 Jul 2009; Other Information: DOI: 10.1063/1.3399298; (c) 2010 American Institute of Physics; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHARGED CURRENTS; CROSS SECTIONS; DEEP INELASTIC SCATTERING; DELTA-1232 BARYONS; DUALITY; ELECTRON REACTIONS; FINAL-STATE INTERACTIONS; NEUTRINO OSCILLATION; NEUTRINO REACTIONS; NEUTRINO-PROTON INTERACTIONS; NEUTRINOS; NUCLEONS; PARTICLE PRODUCTION; PIONS; QUANTUM ENTANGLEMENT; QUARK-HADRON INTERACTIONS; QUASI-ELASTIC SCATTERING; SEMICLASSICAL APPROXIMATION; STRUCTURE FUNCTIONS; ALGEBRAIC CURRENTS; APPROXIMATIONS; BARYONS; BOSONS; CALCULATION METHODS; CHARGED-PARTICLE REACTIONS; CURRENTS; DELTA BARYONS; DIRECT REACTIONS; ELEMENTARY PARTICLES; FERMIONS; FUNCTIONS; HADRONS; INELASTIC SCATTERING; INTERACTIONS; LEPTON REACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; LEPTONS; MASSLESS PARTICLES; MESONS; N*BARYONS; NEUTRINO-NUCLEON INTERACTIONS; NUCLEAR REACTIONS; PARTICLE INTERACTIONS; PSEUDOSCALAR MESONS; QUASI-FREE REACTIONS; SCATTERING

Citation Formats

Leitner, T, Lalakulich, O, Buss, O, Mosel, U, and Alvarez-Ruso, L. Pion production in neutrino interactions with nuclei. United States: N. p., 2010. Web. doi:10.1063/1.3399298.
Leitner, T, Lalakulich, O, Buss, O, Mosel, U, & Alvarez-Ruso, L. Pion production in neutrino interactions with nuclei. United States. https://doi.org/10.1063/1.3399298
Leitner, T, Lalakulich, O, Buss, O, Mosel, U, and Alvarez-Ruso, L. Tue . "Pion production in neutrino interactions with nuclei". United States. https://doi.org/10.1063/1.3399298.
@article{osti_21367075,
title = {Pion production in neutrino interactions with nuclei},
author = {Leitner, T and Lalakulich, O and Buss, O and Mosel, U and Alvarez-Ruso, L},
abstractNote = {Neutrino-induced pion production on nuclear targets is the major inelastic channel in all present-day neutrino-oscillation experiments. It has to be understood quantitatively in order to be able to reconstruct the neutrino-energy at experiments such as MiniBooNE or K2K and T2K. We report here results of cross section calculations for both this channel and for quasielastic scattering within the semiclassical GiBUU method. This method contains scattering, both elastic and inelastic, absorption and side-feeding of channels all in a unitary, common theoretical framework and code. We find that charged current quasielastic scattering (CCQE) and 1 pi production are closely entangled in actual experiments, due to final state interactions of the scattered nucleons on one hand and of the DELTA resonances and pions, on the other hand. We discuss the uncertainties in the elementary pion production cross sections from ANL and BNL. We find the surprising result that the recent 1 pi production cross section data from MiniBooNE are well described by calculations without any FSI. For higher energies we study the validity of the Bloom-Gilman quark-hadron duality for both electron- and neutrino-induced reactions. While this duality holds quite well for nucleon targets, for nuclear targets the average resonance contributions to the structure function F{sub 2} are always lower than the DIS values. This result indicates a significant impact of nuclear effects on observables, reducing the cross section and structure functions by at least 30-40% and changing the form of various distributions.},
doi = {10.1063/1.3399298},
url = {https://www.osti.gov/biblio/21367075}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1222,
place = {United States},
year = {2010},
month = {3}
}