Examining Matter-Antimatter Asymmetry with DUNE - Livestream

Following the Big Bang, the universe was created in equal parts matter and antimatter. Yet, we live in a matter dominated universe today. Leptonic charge conjugation - parity (CP) violation provides a possible rationale to explain the matter-antimatter asymmetry we observe. Accelerator-based long-baseline neutrino oscillation experiments are uniquely well-suited to examine CP violation in the lepton sector. The Deep Underground Neutrino Experiment (DUNE) is a next generation long-baseline neutrino oscillation program designed to determine the value of δ CP within the context of standard three-flavor mixing described by the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) neutrino mixing matrix. A performant near detector is required to realize DUNE neutrino oscillation sensitivities. I will introduce the DUNE Near Detector, focusing on the atypical design necessitated by the unprecedented neutrino beam intensity. I will discuss critical experimental challenges and highlight novel instrumentation, namely low-power custom ASICs with mixed-signal large-format PCB anodes for unambiguous 3D charge readout. Recent results from the analysis of cosmic rays in a ton-scale prototype detector will be discussed.

Speaker: Brooke Russell, Lawrence Berkeley National Lab

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