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COMPLEX SPINORS AND UNIFIED THEORIES

2010; Cambridge University Press; Linguagem: Inglês

10.1142/9789812836854_0018

1793-1207

Murray Gell‐Mann, Pierre Ramond, R. Slansky,

Neutrino Physics Research

World Scientific Series in 20th Century PhysicsMurray Gell-Mann, pp. 266-272 (2010) No AccessCOMPLEX SPINORS AND UNIFIED THEORIESMurray Gell-Mann, Pierre Ramond, and Richard SlanskyMurray Gell-MannCERN, Geneva, SwitzerlandPermanent address: 452-48 California Institute of Technology, Pasadena, California 91125 U.S.A. Work supported in part by a grant from the Alfred P. Sloan Foundation.Work supported in part by the U.S. Department of Energy under contract No. DEAC-03-79ER0068., Pierre Ramond452-48 California Institute of Technology, Pasadena, California 91125, U.S.A.Work supported in part by the U.S. Department of Energy under contract No. DE-AC-03-79ER0068., and Richard SlanskyTheoretical Division, University of California, Los Alamos Scientific Laboratory, Los Alamos, NM 87545, U.S.A.https://doi.org/10.1142/9789812836854_0018Cited by:19 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail Abstract: We were told by Frank Yang in his welcoming speech that supergravity is a phenomenon of theoretical physics. Why, at this time, is it not more than that? Self-coupled extended supergravity, especially for N = 8, seems very close to the overall unified theory for which all of us have yearned since the time of Einstein. There are no quanta of spin >2; there is just one graviton of spin 2; there are N gravitini of spin 3/2, just right for eating the N Goldstone fermions of spin 1/2 that are needed if N-fold supersymmetry is to be violated spontaneously; there are N(N−1)/2 spin 1 bosons, perfectly suited to be the gauge bosons for SON in the theory with self-coupling. There are N(N − 1)(N − 2)/6 spin 1/2 Majorana particles, and with the simplest assignments of charge and colour they include isotopic doublets of quarks and leptons. The theory is highly non–singular in perturbation theory, and the threatened divergence at the level of three loops has not even been demonstrated. The apparently arbitrary cancellation of huge contributions of opposite sign to the cosmological constant (from self-coupling on the one hand and from spontaneous violation of supersymmetry on the other) has been phrased in such an elegant way that it may be acceptable. (Of course, if we follow Hawking at al., we may not even need to cancel out the cosmological constant!)… FiguresReferencesRelatedDetailsCited By 19Developing a theory of full democratic consolidation: Exploring the links between democracy and digital transformation in developing eastern European countriesDoina Stratu-Strelet, Hermenegildo Gil-Gómez, Raúl Oltra-Badenes and Juan Vicente Oltra-Gutierrez1 Mar 2023 | Journal of Business Research, Vol. 157Spelling out leptonic CP violation in the language of invariant theoryBingrong Yu and Shun Zhou9 September 2022 | Physical Review D, Vol. 106, No. 5Reconciling LSND and Super-Kamiokande data through the dynamical Lorentz symmetry breaking in a four-Majorana fermion modelY. M. P. Gomes and M. J. Neves15 July 2022 | Physical Review D, Vol. 106, No. 1Energy-dependent neutrino mixing parameters at oscillation experimentsK. S. Babu, Vedran Brdar, André de Gouvêa and Pedro A. N. 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