We report the first measurement of the flux-integrated cross section of
$
u_{mu}$ charged-current single $pi^{0}$ production on argon. This
measurement is performed with the MicroBooNE detector, an 85 ton active mass
liquid argon time projection chamber exposed to the Booster Neutrino Beam at
Fermilab. This result on argon is compared to past measurements on lighter
nuclei to investigate the scaling assumptions used in models of the production
and transport of pions in neutrino-nucleus scattering. The techniques used are
an important demonstration of the successful reconstruction and analysis of
neutrino interactions producing electromagnetic final states using a liquid
argon time projection chamber operating at the earth’s surface.
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