In the theory of grand unification of particle physics, and, in particular, in theories of neutrino masses and neutrino oscillation, the seesaw mechanism is a generic model used to understand the relative sizes of observed neutrino masses, of the order of eV, compared to those of quarks and charged leptons, which are millions of times heavier. The name of the seesaw mechanism was given by Tsutomu Yanagida in a Tokyo conference in 1981.
There are several types of models, each extending the Standard Model. The simplest version, "Type 1," extends the Standard Model by assuming two or more additional right-handed neutrino fields
inert under the electroweak interaction,[a]
and the existence of a very large mass scale. This allows the mass scale to be identifiable with the postulated scale of grand unification.
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particular, in theories of neutrino masses and neutrino oscillation, the seesawmechanism is a generic model used to understand the relative sizes of observed...
varieties of seesaw and there is currently great interest in the so-called low-scale seesaw schemes, such as the inverse seesawmechanism. The addition...
theory has gained popularity as it can be used, in combination with the seesawmechanism, to explain why neutrino masses are so small compared to those of the...
boson. On a fundamental level, such an interaction emerges in the seesawmechanism where heavy right-handed neutrinos are added to the theory. This is...
algebra Generation Higgs mechanism Alternatives to the Standard Higgs Model PMNS matrix Quark–lepton complementarity Seesawmechanism Technicolor Zenczykowski...
not rigidly defined. New ideas in physics often explain the fundamental mechanisms studied by other sciences and suggest new avenues of research in these...
which explains why its mass would be heavy[clarification needed] (see seesawmechanism). The next simple Lie group which contains the standard model is S...
Disphenoidal or seesaw (also known as sawhorse) is a type of molecular geometry where there are four bonds to a central atom with overall C2v molecular...
explain the origin of particle masses. In a process known as the "Higgs mechanism", the Higgs boson and the other gauge bosons in the Standard Model acquire...
small. One approach to add masses to the neutrinos, the so-called seesawmechanism, is to add right-handed neutrinos and have these couple to left-handed...
the standard model which explain the small neutrino mass through the seesawmechanism. Warm dark matter comprises particles with an FSL comparable to the...
physicist who first proposed the seesawmechanism in 1979 and developed the model of leptogenesis. The name of the seesawmechanism was given by him in a Tokyo...
right-handed neutrinos to yet-unknown physics around the GUT scale (see seesawmechanism). Since in any case new fields must be postulated to explain the experimental...
In 1979, with Murray Gell-Mann and Richard Slansky he proposed the seesawmechanism which explains small neutrino masses in the context of Grand-Unified...
more-or-less simultaneously with a number of other theorists, of the seesawmechanism for the generation of neutrino masses. Peter Minkowski, a life-long...
Standard Model. The currently most favoured extension is the so-called seesawmechanism, which would explain both why the left-handed neutrinos are so light...
ventilation of the mid-depth North Pacific and an Atlantic-Pacific seesawmechanism". Quaternary Science Reviews. 248: 106549. Bibcode:2020QSRv..24806549D...
manifest physically as two distinct masses; this is the key idea of the seesawmechanism for describing low-mass neutrinos with a left-handed coupling to the...
James B. (August 7, 2013). "Phys. Rev. Lett. 111, 061802 (2013): Higgs SeesawMechanism as a Source for Dark Energy". Physical Review Letters. 111 (6). Prl...
demonstrate violation of lepton number conservation, validating the seesawmechanism as the explanation for the neutrino mass scale. It would also place...
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