neutrino

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Understanding ghost particle interactions

    From Argonne National Laboratory, Sept. 28, 2020: A research team from four national laboratories, including Fermilab and Argonne, have undertaken work at two Fermilab neutrino experiments — MiniBooNE and NOvA — to construct a model of how neutrinos interact with atomic nuclei. This knowledge is essential to unravel an even bigger mystery: why during their journey through space or matter neutrinos magically morph from one into another of three possible types or flavors.

    Powerful new observatory will taste neutrinos’ flavors

      From Scientific American, Sept. 22, 2020: The Chinese JUNO experiment will aim to answer a mystery about the particles’ mass. It will be joined by the international Deep Underground Neutrino Experiment later this decade in its search for answers that neutrinos can provide. Fermilab Deputy Director Joe Lykken weighs in on how neutrinos will address the universe’s pressing questions.

      ICEBERG tests future neutrino detector systems with ‘beautiful’ results

      Scientists are testing the components and systems for the international Deep Underground Neutrino Experiment, hosted by Fermilab, with other liquid-argon particle detectors. One such detector is ICEBERG, which is over 10,000 times smaller than DUNE will be. ICEBERG’s measurements are providing insight for future neutrino experiments.

      The neutrino painter

      Particle physics is driven by surprise. Researchers in the 1960s studying tiny but ubiquitous particles called neutrinos found only a fraction of what they expected to be in their detector. That unexpected result eventually led to the discovery that neutrinos are shape-shifters, oscillating between three types as they travel. In this stop-motion video, Symmetry writer Zack Savitsky imagines a painter discovering a similar surprise among his art supplies.

      À la recherche du neutrino stérile

        From Pour la Science, Aug. 24, 2020: Les neutrinos existent en trois variétés, mais certains indices suggèrent l’existence d’une quatrième, qui pourrait jouer un rôle important en cosmologie. Des expériences sont en cours afin de détecter ces hypothétiques particules. Les données de MiniBooNE n’ont fait qu’appuyer davantage les arguments en faveur de cette quatrième saveur de neutrino.

        This underground experiment will hunt for supernova shrapnel

          From Futurism, Aug. 19, 2020: When an ambitious new Fermilab-hosted experiment called DUNE begins its work, physicists believe they’ll be able to learn a whole lot more about supernova explosions than ever before. That’s because DUNE is expected to be sensitive to an extremely elusive particle called a neutrino that’s blasted far and wide across the cosmos when a star explodes. According to a new paper shared online on Saturday, physicists expect DUNE to scoop up a never-before-detected kind of neutrino and, in doing so, break down why and how stars die in unprecedented detail.