SU(2) × U(1) breaking by vacuum misalignment
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Currently two scenarios exist which explain SU(2) × U(1) breaking: the Higgs mechanism, and standard hypercolor schemes. In this paper, a third scenario called “oblique hypercolor” is proposed. A hyperquark condensate is formed which, although kinematically allowed to point in an SU(2) × U(1) preserving direction, is forced by Yukawa interactions of the hyperquarks to misalign by a small angle, breaking SU(2) × U(1). The low energy spectrum involves normal fermions with correct masses, a partially composite Higgs boson, and physical charged scalars.
[1] J. Preskill,et al. Massless Composites With Massive Constituents , 1982 .
[2] P. Ginsparg,et al. Top Quark Mass and Bottom Quark Decay , 1983 .
[3] J. Preskill. SUBGROUP ALIGNMENT IN HYPERCOLOR THEORIES , 1981 .
[4] Implications of chiral dynamics in theories of technicolour: (I). Elementary couplings , 1981 .
[5] M. Peskin. The Alignment of the Vacuum in Theories of Technicolor , 1980 .