2,910 research outputs found
Extended Grimus-Stockinger theorem and inverse square law violation in quantum field theory
We study higher-order corrections to the Grimus-Stockinger theorem dealing
with the large-distance asymptotic behavior of the wave-packet modified
neutrino propagator within the framework of field-theoretical description of
the neutrino oscillation phenomenon. We discuss the possibility that these
corrections are responsible for breakdown of the classical inverse-square law
(ISL) at the macroscopic distances. In particular the ISL violation can be an
explanation of the well-known reactor antineutrino anomaly.Comment: 11 pages, no figures. Some additions are done and references are
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Extraction of Neutrino Flux with the Low Method at MiniBooNE Energies
We describe the application of the `low-' method to the extraction of
the neutrino flux at MiniBooNE energies. As an example, we extract the relative
energy dependence of the flux from published MiniBooNE quasielastic scattering
cross sections with GeV and GeV (here is the
energy transfer to the target). We find that the flux extracted from the
`low-' cross sections is consistent with the nominal flux used by
MiniBooNE. We fit the MiniBooNE cross sections over the entire kinematic range
to various parametrizations of the axial form factor. We find that if the
overall normalization of the fit is allowed to float within the normalization
errors, the extracted values of the axial vector mass are independent of the
flux. Within the Fermi gas model, the distribution of the MiniBooNE data
is described by a standard dipole form factor with GeV. If
nuclear transverse enhancement in the vector form factors is accounted for, the
data are best fit with a modified dipole form factor with
GeV.Comment: 5 pages, 6 figures, (presented by A. Bodek at CIPANP 2012, St.
Petersburg, FL, June 2012, and at NuFact 2012, Williamsburg, VA, July 2012
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