NOνA (E929)
NuMI Off-Axis νe Appearance Experiment

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# NOVA Document 36849-v4

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# APS April 2019 Meeting: $\nu_e$ selection and cross-checks using muon removed electron added simulations and cosmic muon bremsstrahlung showers in NOvA

Document #:
NOVA-doc-36849-v4
Document type:
talk
Submitted by:
Reddy Pratap Gandrajula
Updated by:
Maury Goodman
Document Created:
03 Apr 2019, 09:31
Contents Revised:
14 Apr 2019, 20:42
08 Jul 2019, 16:29
Viewable by:
• Public document
Modifiable by:

NOvA is a long-baseline neutrino oscillations experiment, designed to make precision measurements of $\theta_{23}$, $\delta_{CP}$, and the neutrino mass hierarchy using $\nu_\mu(\bar{\nu_\mu})$ disappearance and $\nu_e(\bar\nu_e)$ appearance in three-flavor neutrino oscillations. It consists of two functionally equivalent detectors each located 14.6 mrad off the central axis of the Fermilab NuMI neutrino beam; the world's most intense neutrino beam. The Near Detector(ND) is located 1 km downstream from the beam source, and the Far Detector(FD) is located 810 km away in Ash River, MN. To validate the performance of our simulation of the convolutional neural network classifier used to identify $\nu_{e}$ events, we apply a data-driven technique called Muon Removal (MR). This talk will discuss two applications of MR. In a Muon-Removed Electron-added (MRE) study, we compare the performance of the classifier on ND $\nu_{\mu}$ CC candidates from both data and simulation in which the muon candidate is replaced by a simulated electron of the same energy. In Muon-Removed Bremsstrahlung (MRBrem), we remove the muon from data & simulated FD cosmic muon rays, resulting in a pure selection of electromagnetic showers. The resulting comparisons show agreement at the few-percent level.