Spontaneously Broken SU(5) Symmetries and One-Loop Effects in the Early Universe

Details Spontaneously Broken SU(5) Symmetries and One-Loop Effects in the Early Universe Spontaneously Broken SU(5) Symmetries and One-Loop Effects in the Early Universe

1995-07-01

arxiv.org/abs/gr-qc/9506091v1

Class.Quant.Grav.9:1499-1509,1992

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

19 pages, plain-tex, published in Classical and Quantum Gravity, volume 9, pages 1499-1509, year 1992

Scientific paper

10.1088/0264-9381/9/6/008

This paper studies one-loop effective potential and spontaneous-symmetry-breaking pattern for SU(5) gauge theory in de Sitter space-time. Curvature effects modify the flat-space effective potential by means of a very complicated special function previously derived in the literature. An algebraic technique already developed by the first author to study spontaneous symmetry breaking of SU(n) for renormalizable polynomial potentials is here generalized, for SU(5), to the much harder case of a de Sitter background. A detailed algebraic and numerical analysis provides a better derivation of the stability of the extrema in the maximal subgroups SU(4) x U(1), SU(3) x SU(2) x U(1), SU(3) x U(1) x U(1) x R(311), SU(2) x SU(2) x U(1) x U(1) x R(2211), where R(311) and R(2211) discrete symmetries select particular directions in the corresponding two-dimensional strata. One thus obtains a deeper understanding of the result, previously found with a different numerical analysis, predicting the slide of the inflationary universe into either the SU(3) x SU(2) x U(1) or SU(4) x U(1) extremum. Interestingly, using this approach, one can easily generalize all previous results to a more complete SU(5) tree-level potential also containing cubic terms.

Affiliated with

Also associated with

No associations

Rating

Spontaneously Broken SU(5) Symmetries and One-Loop Effects in the Early Universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spontaneously Broken SU(5) Symmetries and One-Loop Effects in the Early Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spontaneously Broken SU(5) Symmetries and One-Loop Effects in the Early Universe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-9