1. Socrates: “Would a sensible husbandman, who has seeds which he cares for and which he wishes to bear fruit, plant them with serious purpose in the heat of summer in some garden of Adonis...?”
2. Quigg, C.: Unanswered questions in the electroweak theory. Ann. Rev. Nucl. Part. Sci. 59, 505–555 (2009)
3. Lynn, B. W., and Starkman, G. D.: Global
$$SU(3)_C \times SU(2)_L \times U(1)_Y$$
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U
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3
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U
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2
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linear sigma model with Standard Model fermions: axial-vector Ward Takahashi identities, the absence of Brout–Englert–Higgs mass fine tuning, and the decoupling of certain heavy particles, due to the Goldstone theorem.
arXiv:1509.06199
4. Peskin, M.E., Schroeder, D.V.: An Introduction to Quantum Field Theory. Addison-Wesley, Reading (1995)
5. Marshak, R.E.: Conceptual Foundations of Modern Particle Physics. World Scientific, Singapore (1993)