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Supergravity and Superstrings

Gell-Mann, Murray (1986) Supergravity and Superstrings. Annals of the New York Academy of Sciences, 461 (1). pp. 325-335. ISSN 0077-8923. doi:10.1111/j.1749-6632.1986.tb52424.x.

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Over the last decade, theorists have been searching hard for a unified quantum field theory of physical interactions with or without gravitation. The “standard” SU_3 x SU_2 x U_1 theory has three independent coupling constants and numerous dimensionless parameters determining the mass ratios, the weak coupling matrix, etc. The number of sets of Higgs bosons and the representation to which they belong appear arbitrary. The theory cries out to be embedded in a bigger and more nearly unified theory. The fact that the coupling constants appear to come together somewhere between 10^(15) GeV and the Planck mass of ~ 2 x 10^(19) GeV suggests a unified Yang-Mills theory, for example with SU5 and three fermion families (fermions in 5 + 10). However, such a theory, with one coupling constant, still has numerous dimensionless parameters and arbitrary Higgs boson behavior

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Additional Information:© 1986 John Wiley & Sons, Inc.
Issue or Number:1
Record Number:CaltechAUTHORS:20150923-074724708
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Official Citation:GELL-MANN, M. (1986), Supergravity and Superstrings. Annals of the New York Academy of Sciences, 461: 325–335. doi: 10.1111/j.1749-6632.1986.tb52424.x
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:60429
Deposited By: Ruth Sustaita
Deposited On:23 Sep 2015 22:09
Last Modified:10 Nov 2021 22:34

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