PhysLean/HepLean/BeyondTheStandardModel/GeorgiGlashow/Basic.lean
2024-12-05 06:49:50 +00:00

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/-
Copyright (c) 2024 Joseph Tooby-Smith. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Joseph Tooby-Smith
-/
import HepLean.StandardModel.Basic
import HepLean.Meta.Informal.Basic
/-!
# The Georgi-Glashow Model
The Georgi-Glashow model is a grand unified theory that unifies the Standard Model gauge group into
`SU(5)`.
This file currently contains informal-results about the Georgi-Glashow group.
-/
namespace GeorgiGlashow
informal_definition GaugeGroupI where
math :≈ "The group `SU(5)`."
physics :≈ "The gauge group of the Georgi-Glashow model."
informal_definition inclSM where
physics :≈ "The homomorphism of the Standard Model gauge group into the
Georgi-Glashow gauge group."
math :≈ "The group homomorphism `SU(3) x SU(2) x U(1) -> SU(5)`
taking (h, g, α) to (blockdiag (α ^ 3 g, α ^ (-2) h)."
ref :≈ "Page 34 of https://math.ucr.edu/home/baez/guts.pdf"
deps :≈ [``GaugeGroupI, ``StandardModel.GaugeGroupI]
informal_lemma inclSM_ker where
math :≈ "The kernel of the map ``inclSM is equal to the subgroup
``StandardModel.gaugeGroup₆SubGroup."
ref :≈ "Page 34 of https://math.ucr.edu/home/baez/guts.pdf"
deps :≈ [``inclSM, ``StandardModel.gaugeGroup₆SubGroup]
informal_definition embedSM₆ where
math :≈ "The group embedding from ``StandardModel.GaugeGroup₆ to ``GaugeGroupI
induced by ``inclSM by quotienting by the kernal ``inclSM_ker."
deps :≈ [``inclSM, ``StandardModel.GaugeGroup₆, ``GaugeGroupI, ``inclSM_ker]
end GeorgiGlashow