History of particles in the early universe from contracting the Standard Model

N. A. Gromov ()
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N. A. Gromov: Komi Science Center UrD RAS

A chapter in Physical and Mathematical Aspects of Symmetries, 2017, pp 189-194 from Springer

Abstract: Abstract The high-temperature limit of the Standard Model generated by the contractions of gauge groups is discussed. Contraction parameters of gauge groups SU(2) of the Electroweak Model and SU(3) of Quantum Chromodynamics are taken to be identical and tending to zero when temperature increase. Properties of the elementary particles change drastically at the infinite temperature limit: all particleslose masses, all quarks are monochromatic. Electroweak interactions become long-range and are mediated by the neutral currents. Particles of different kind do not interact. It looks like some stratification with only one type of particle in each stratum. The Standard Model passes in this limit through several stages, which are distinguished by the powers of contraction parameters. The developed approach describes the evolution of the Standard Model in the early universe from the Big Bang up to the end of several nanoseconds.

Date: 2017
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DOI: 10.1007/978-3-319-69164-0_28

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