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Measuring Neutral-Current Neutral-Pion Cross Section on Argon in MicroBooNE

ORAL

Abstract

MicroBooNE is a short-baseline liquid argon time projection chamber (LArTPC) neutrino experiment at Fermilab built to explore the excess of low energy electromagnetic events observed by its predecessor, MiniBooNE. MicroBooNE is also measuring a wide-array of neutrino-argon scattering cross sections in service of this goal and to provide input to future LArTPC neutrino expeiriments. Neutral current (NC) neutral pions (π0) are the dominant background for exploring anomalies in the photon channel. As such, constraining the NCπ0 background is central to accurately characterizing the photon signal in MicroBooNE. Our analysis calculates the rate of NCπ0 events across kinematic variables and unfolds it into a truth level cross section that is generalizable for use in future LArTPC experiments by accounting for the effects of detector response and neutrino flux. In this talk, I will go over the components of our analysis, including data selection, unfolding methods, and a fake data study and provide its current status.

Presenters

  • Leon N Tong

    Los Alamos National Laboratory

Authors

  • Leon N Tong

    Los Alamos National Laboratory