Composite Higgs mechanism
Thesis/Dissertation
·
OSTI ID:5571664
It is commonly accepted that spontaneously broken SU(2) x U(1) symmetry describes the weak interactions. In the standard model SU(2) x U(1) is broken by the vacuum expectation value of a fundamental scalar doublet called the Higgs. An oft-discussed alternative - that of technicolor - involves no scalars, but only extra fermions with strong interactions at the SU(2) x U(1) breaking scale. In this thesis the author considers another alternative, that of the Composite Higgs Mechanism. Models with this mechanism have only fermions, with QCD, like strong dynamics at a scale much higher than the weak scale. The theory at lower energies possesses a composite Higgs doublet which is a tightly bound state of these fermions. A combination of strong and weak gauge forces are responsible for having this composite scalar doublet spontaneously break SU(2) x U(1).
- Research Organization:
- Harvard Univ., Boston, MA (USA)
- OSTI ID:
- 5571664
- Country of Publication:
- United States
- Language:
- English
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