Past Event

Daisy Kalra - Panjab University & Fermilab

March 11, 2020
10:00 AM - 11:00 AM
705 Pupin Hall

"Measurement of Inclusive Neutral Current π0Production Cross section with the NOvA Near Detector"

NOvA (NuMI Off-axis 𝑣e Appearance) experiment is a long-baseline neutrino oscillation experiment. It uses two functionally identical detectors, the NOvA near detector (ND) at Fermilab and the NOvA far detector (FD) at a distance 810 km in northern Minnesota to measure 𝑣e appearance in a narrow-band beam of 𝑣µ peaked at 2 GeV in energy. Neutrino induced Neutral Current (NC) interactions with a π0 in the final state are a significant background in the 𝑣e_eappearance measurement. The π0 decay into two photons can fake the 𝑣e appearance signal either due to merging of two photon showers or one of the two photons escaping the detection. Therefore, a complete understanding of NC interactions with π0 in the final state is very important. To constrain this background, a cross-section measurement of inclusive NC π0 production using data from the NOvA ND has performed. It will also help in reducing the background uncertainties for current and future long-baseline neutrino oscillation experiments. An absolute cross-section measurement as well as differential cross-section measurement w.r.t πkinematics including event identification techniques, background estimation study, unfolding results and expected uncertainties will be presented.