Standard Model

From Discover Magazine, December 19, 2021: In April, an international collaboration of more than 200 scientists, led by Fermilab reported findings that may open a door to physics that transcends the Standard Model. Muon g-2’s magnetic moment goes beyond the Standard Model.

From Universe Today, November 5, 2021: Neutrinos might make up a small portion of dark matter, but most dark matter must be something else. Because neutrinos are so close to satisfying the properties of dark matter, some scientists have argued dark matter might be a yet undiscovered variety known as sterile neutrinos.What did Fermilab’s newest experiment MicroBooNE see?

From Le Scienze (France), November 4, 2021: The preliminary analysis of three years of data from the MicroBooNE experiment show no signs of the existence of a fourth type of neutrino. The standard model of particle physics remains confirmed but it has not excluded clues to exotic physical phenomena may emerge.

From Scientific American, November 4, 2021: Physicists have wondered if neutrino particles come in a mysterious fourth variety. Now new experimental findings complicate the question. Physicists have wondered if neutrino particles come in a mysterious fourth variety. The MicroBooNE experiment findings announced last week by Fermilab heightened the mystery of why too many particles showed up in a detector during an experiment on the 1990s.

From Forbes, October 27, 2021: Fermilab’s Don Lincoln discusses the journey of the hypothetical sterile neutrino and the results of the MicroBooNE experiment hosted at Fermilab. Have sterile neutrinos been ruled out?

From the BBC, October 27, 2021: Yesterday, the MIcroBooNE collaboration opened a new chapter in physics with the announcement of their results; the search failed to find the particle, known as the sterile neutrino.

From Fuentitech, October 19, 2021: Physicists have long wondered if muons, electrons, and other leptons make a difference other than mass. The latest LHCb results suggest that the answer may be “yes” by revealing two minor anomalies that continue the strange pattern of “lost” muons shown in recent data from the LHCb. In April, the Muon g-2 experiment at Fermilab also found a discrepancy from the Standard Model but future results may also shed light on these differences.