Department of Physics & Astronomy
University of New Mexico

Physics and Astronomy Colloquium

In Search of New Physics with MicroBooNE

Presented by Georgia Karagiorgi, Columbia University

The Nobel prize winning discovery of neutrino oscillation has led to the extension of the Standard Model (SM) of Particle Physics, in order to accommodate three non-zero neutrino masses and neutrino flavor mixing. Yet, the origin of neutrino mass remains unknown, and, with that, important questions about the nature of matter and antimatter remain unanswered. Additionally, a series of experimental anomalies, including an unexplained excess of electron neutrino-like interactions observed by the MiniBooNE experiment, hint at the existence of new physics beyond the SM, e.g. additional "sterile" neutrino states, further challenging our understanding of the three-neutrino picture. MicroBooNE, the first large-scale liquid argon time projection chamber (LArTPC) neutrino detector built and operated in the U.S., was proposed to investigate the anomalous excess observed by MiniBooNE, and to further develop the LArTPC detector technology toward the sensitivity and scale required by future-generation neutrino oscillation experiments. Operating in the Booster Neutrino Beamline at Fermilab during 2015-2021, MicroBooNE has demonstrated the power of LArTPC technology in delivering high-precision measurements of neutrino interactions, and sensitive searches for new physics beyond the SM. In this talk, I will present the recent results from MicroBooNE’s first series of analyses investigating the MiniBooNE anomalous excess, and discuss them within the context of some of the more popular beyond-the-SM interpretations of the MiniBooNE anomaly.

3:30 pm, Friday, January 21, 2022
Room 125, Dane Smith Hall
Southwest corner of Las Lomas and Yale, Albuquerque, New Mexico

, in the lobby of Dane Smith Hall.

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