Retrieving "Neutrino Mass" from the archives

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1. Elementary Particles

   Linked via "neutrino mass"

   Elementary particles are the point-like constituents of matter and force carriers that, within the current framework of Quantum Field Theory $\mathrm{1}$, possess no known internal substructure. They represent the foundational building blocks upon which all observed physical phenomena are constructed. While the Standard Model provides the most successful description of these constituents and their interactions, ongoing research suggests the existence of phenomena—such as neutrino mass …

2. Solar Neutrino Flux

   Linked via "non-zero mass"

   From the 1960s through the early 2000s, terrestrial detectors consistently measured a total electron neutrino flux approximately one-third to one-half of the flux predicted by the SSM $\text{ [3]}$. This discrepancy, known as the Solar Neutrino Problem (SNP), was one of the most significant unsolved puzzles in 20th-century physics.
   The resolution arose from the discovery that neutrinos possess [non-zero mass](/entrie…

3. Standard Model

   Linked via "neutrino masses"

   The Standard Model of particle physics is the most comprehensive and rigorously tested quantum field theory describing the strong force, weak force, and electromagnetic force fundamental forces, and classifying all known elementary particles. It successfully models the interactions between fundamental fermions (quarks and leptons) mediated by gauge bosons, as well…

4. Standard Model

   Linked via "Neutrino Mass"

   Gravity: It does not incorporate General Relativity or quantum gravity.
   Neutrino Mass: The initial model predicts massless neutrinos; their observed non-zero mass requires the introduction of sterile neutrinos or extensions involving the seesaw mechanism.
   Baryon Number Violation: Proton decay is strictly forbidden in the Standard Model, t…