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The Standard Model of particle physics is the theory describing three ... by first postulating a set of symmetries of ... a complete theory explaining all physical ...
The Standard Model predicts that each of these three numbers should be conserved separately in a manner similar to the way baryon number is conserved. These numbers are collectively known as lepton family numbers (LF). (This result depends on the assumption made in Standard Model that neutrinos are massless.
The Standard Model is widely considered to be a provisional theory rather than a truly fundamental one, however, since it is not known if it is compatible with Einstein's general relativity. There may be hypothetical elementary particles not described by the Standard Model, such as the graviton , the particle that would carry the gravitational ...
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The Standard Model of elementary particles is a gauge theory based on the group SU(3) × SU(2) × U(1), in which all anomalies exactly cancel. [ 1 ] : 705–707 The theoretical foundation of general relativity , the equivalence principle , can also be understood as a form of gauge symmetry, making general relativity a gauge theory based on the ...
Despite being the most successful theory of particle physics to date, the Standard Model is not perfect. [3] A large share of the published output of theoretical physicists consists of proposals for various forms of "Beyond the Standard Model" new physics proposals that would modify the Standard Model in ways subtle enough to be consistent with existing data, yet address its imperfections ...
The Standard Model of particle physics was finalized in the mid-1970s upon experimental confirmation of the existence of quarks.Subsequent discoveries of the top quark (1995), the tau neutrino (2000), and the Higgs boson (2013), gave the model further credence.
Complete arithmetic (also known as true arithmetic) is the theory of the standard model of arithmetic, the natural numbers N. It is complete but does not have a recursively enumerable set of axioms. It is complete but does not have a recursively enumerable set of axioms.