The Korean Physical Society 06130 22, Teheran-ro 7-gil, Gangnam-gu, Seoul, Republic of Korea 610 Representation : Tae Won NOH TEL: 02-556-4737 FAX: 02-554-1643 E-mail : webmaster@kps.or.kr Copyright(C) KPS, All rights reserved.
30 May 2022 to 4 June 2022
Virtual Seoul
Asia/Seoul timezone

Progress Towards An Investigation Of The MiniBooNE Low Energy Excess Using Neutral-Current Delta-Like Single Photons In MicroBooNE With Wire-Cell 3D Reconstruction Algorithms

Not scheduled
5m
Virtual Seoul

Virtual Seoul

Poster Accelerator neutrinos Poster

Description

The MicroBooNE experiment is an 85 tonne active mass liquid argon time projection chamber in the Booster Neutrino Beam at Fermilab. MicroBooNE was designed to investigate the low energy excess of electromagnetic events observed by the MiniBooNE experiment. Potential interpretations of this anomaly include excess neutrino-induced neutral current (NC) single photon production, or e+e- pair production predicted by beyond the Standard Model theories. MicroBooNE has recently investigated neutrino-induced NC single photon production using Pandora reconstruction, and has disfavored an anomalous excess of NC Delta radiative decays. In this poster, I describe progress towards a new single photon investigation in MicroBooNE using Wire-Cell 3D reconstruction algorithms, which will make a largely independent second measurement of NC delta radiative decays. This analysis obtains increased efficiency and purity for events with a single photon shower and no charged lepton or hadronic activity, a topology which has particularly challenging backgrounds and which was least constrained by MicroBooNE's initial results.

Collaboration MicroBooNE

Primary author

Lee Hagaman (Yale University)

Presentation Materials