On Nov. 7, a Fermilab crew moved the cryostat vessel for the DUNE Near Detector Liquid Argon Demonstrator (DUNE ND-LAr) prototyping test stand, also known as ArgonCube 2×2, into the MINOS cavern 100 meters underground. From left to right: Matthew Brock, Thomas Olszanowski, John A. Trebe and Thomas Wicks II. Four prototype ArgonCube TPC modules will be installed in this cryostat in 2023. The prototype modules will undergo testing with the NuMI neutrino beam, powered by Fermilab’s Main Injector accelerator.
From New Atlas, Aug. 12, 2020: An extensive search for a hypothetical particle has turned up empty. The sterile neutrino is a proposed subatomic particle that could even be a candidate for the mysterious dark matter, and although previous studies have hinted at its existence, and the MINOS+ and Daya Bay experiments have all but ruled it out.
From APS Physics, Aug. 10, 2020: Fermilab scientist Pedro Machado co-authors this article on how the MINOS and MINOS+ experiments at Fermilab and the Daya Bay experiment have placed the most stringent limits to date on a hypothetical fourth neutrino. Still, the possibility that such a particle exists remains open.
From CERN Courier, July 7, 2020: A new generation of accelerator and reactor experiments is opening an era of high-precision neutrino measurements to tackle questions such as leptonic CP violation, the mass hierarchy and the possibility of a fourth “sterile” neutrino. These include the international Deep Underground Neutrino Experiment, hosted by Fermilab, and Fermilab’s NOvA and Short-Baseline Neutrino programs.
From PBS Space Time, Jan. 6, 2020: Why is there something rather than nothing? The answer may be found in the weakest particle in the universe: the neutrino. In this 10-minute video, PBS Space Time host Matt O’Dowd and Fermilab scientist Don Lincoln explore the mysteries of the neutrino and how Fermilab is tackling them. The elusive neutrino may hold powerful secrets, from the unification of the forces of nature to the biggest question of all: Why is there something rather than nothing?
In his doctoral thesis, Todd details a method for data analysis in a way that minimizes a source of bias in some particle physics experiments. By analyzing information from two distant detectors simultaneously rather than sequentially, he incorporated the lack of precision knowledge in both detectors. A University of Cincinnati graduate, Todd used data from Fermilab’s MINOS and MINOS+ experiments, and his analysis can be applied in other neutrino research as well.