gravitino


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gravitino

[‚grav·ə′tēn·ō]
(particle physics)
A hypothetical counterpart of the graviton; postulated to exist in supersymmetry theories.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Let us see our shoes as functional gravitinos that invoke the super power to stand dignified and ready to take flight figuratively or literally in service to people in the collective struggle, never idly standing by without consciousness or purpose.
Roychowdhury, "On the complete analytic structure of the massive gravitino propagator in four-dimensional de Sitter space," General Relativity and Gravitation, vol.
This also suggests the lower bound for the reheating temperature after inflation, [T.sub.RH] [greater than or equal to] [10.sup.9] GeV, that would lead to overproduction of gravitino severely affecting the relic abundance of light nuclei since the acceptable limit has been set as [T.sub.RH] [less than or equal to] [10.sup.7] GeV [257].
One is possibly the sterile neutrino, gravitino, the light neutralino, or majoron, with mass about 1~2 keV and decoupling temperature above 100 GeV.
To be specific, consider the supersymmetry transformation of six-dimensional gravitino [[PSI].sub.M] given by [[delta][PSI].sub.M] = [D.sub.M][eta], where a Dirac operator [D.sub.M] = [[partial derivative].sub.M] + [[omega].sub.M] acts on a chiral spinor Then a background geometry obeying [delta][[PSI].sub.M] = [D.sub.M][eta] = 0 must satisfy a well-known condition [[D.sub.M], [D.sub.N]][eta] = (1/2)[R.sub.MNPQ][J.sup.PQ][eta] = 0.
Samanta, "Hawking radiation due to photon and gravitino tunneling," Annals of Physics, vol.
Axions and gravitino in GMSB model are other examples of very light particles that have not been detected yet [28-30].
Freedman, Ferrara, and van Nieuwenhuizen addressed this in 1976 with their theory of supergravity, in which the gravitons of general relativity acquire superpartners called gravitinos.
Constraining warm dark matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-a forest.
Mann, "Gravitinos tunneling from black holes," Physics Letters B, vol.