Tag

Neutrino Oscillations

All articles tagged with #neutrino oscillations

science20 days ago•10 min saved

Chasing Ghost Particles: The Global Quest to Catch Neutrinos

Physicists have built some of the world’s most ambitious detectors—buried underground, underwater, and under Antarctic ice—to catch neutrinos, elusive particles that rarely interact with matter. From Pauli’s proposal and the first detection in the 1950s to solar-neutrino puzzles and modern observatories like Kamiokande, Super-Kamiokande, SNO, IceCube, KM3NeT, JUNO, DUNE, and Hyper-K, the field has shown neutrinos come in flavors that oscillate due to mass, guiding experimental design and enabling study of stars, the cosmos, and fundamental physics.

via Quanta Magazine|

#astrophysics #neutrino-detectors #neutrino-oscillations

science2 months ago•8 min saved

Dual Role of Neutrino Flavor Swaps in Core-Collapse Supernovae

New simulations with detailed momentum-space neutrino transport show fast flavor conversions can both promote and hinder supernova explosions, making low-mass stars explode more readily while heavier stars become less likely; the study highlights the need for Boltzmann-like transport to accurately capture flavor dynamics and warns simpler models can misidentify where flavor conversions occur.

via American Physical Society|

#core-collapse-supernovae #fast-flavor-conversion #multiangle-radiation-hydrodynamics

science3 months ago•17 min saved

Sterile Neutrino Hypothesis Fails the Latest Tests

Decades of hints for a light sterile neutrino have collapsed after recent null results (KATRIN and MicroBooNE, plus reactor and gallium studies), effectively ruling out the simplest sterile-neutrino explanation for several anomalies. While the LSND/Miniboone/gallium puzzles remain unexplained, physicists are pursuing more complex neutrino scenarios and await data from JUNO, DUNE, and Isodar to map neutrino masses and oscillations.

via Quanta Magazine|

#anomalies #neutrino-oscillations #neutrinos

science8 months ago•16 min saved

Global Collaboration Advances Understanding of Neutrinos and the Universe

Neutrinos, the most mysterious particles in the universe, have been pivotal in uncovering fundamental physics, from their initial proposal in 1930 to their confirmed mass and oscillation between flavors, which could hold answers to major cosmic mysteries like dark matter, dark energy, and matter-antimatter asymmetry. Ongoing experiments aim to measure their properties more precisely, potentially revealing new physics beyond the Standard Model.

via Big Think|

#cosmic-mysteries #massive-neutrinos #neutrino-oscillations

science1 year ago•17 min saved

Neutrino Mass Mystery Shrinks Further

Recent experiments, particularly KATRIN, have set the tightest constraints yet on the mass of the electron neutrino, showing it can be no more than 0.45 eV/c², which has significant implications for understanding the universe's composition and the role of neutrinos in cosmic evolution. Despite these constraints, the exact mass of neutrinos remains unknown, and further research is needed to fully understand their properties and impact on cosmology.

via Big Think|

#cosmic-neutrino-background #katrin #mass