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Title: Photon emission in neutral current interactions with nucleons and nuclei

We report on our study of photon emission induced by E{sub ν} ∼ 1 GeV (anti)neutrino neutral current interactions with nucleons and nuclei. This process is an important background for ν{sub e} appearance oscillation experiments. At the relevant energies, the reaction is dominated by the excitation of the Δ(1232) resonance but there are also non-resonant contributions that, close to threshold, are fully determined by the effective chiral Lagrangian of strong interactions. We have obtained differential and integrated cross section for the (anti)neutrino-nucleon scattering and compare them with previous results. Furthermore, we have extended the model to nuclear targets taking into account Fermi motion, Pauli blocking and the in-medium modifications of the Δ properties. This study is important in order to reduce systematic effects in neutrino oscillation experiments.
Authors:
; ;  [1]
  1. Instituto de Física Corpuscular and Departamento de Física Teórica, Centro Mixto Universidad de Valencia-CSIC, E-46071 Valencia (Spain)
Publication Date:
OSTI Identifier:
22391806
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1663; Journal Issue: 1; Conference: NuINT12: 8. International Workshop on Neutrino-Nucleus Internactions in the Few-GeV Region, Rio de Janeiro (Brazil), 22-27 Oct 2012; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CHIRALITY; COMPARATIVE EVALUATIONS; CROSS SECTIONS; DELTA-1232 BARYONS; EXCITATION; GEV RANGE; LAGRANGIAN FUNCTION; NEUTRAL-CURRENT INTERACTIONS; NEUTRINO OSCILLATION; NEUTRINO-NUCLEON INTERACTIONS; NEUTRINOS; NUCLEONS; PHOTON EMISSION