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Electroweak symmetry breaking and extra dimensions
Hsin-Chia Cheng
The electroweak symmetry may be broken by a composite Higgs which arises naturally as a bound state of the top quark if the standard model gauge fields and fermions propagate in ex…
Bounds on Universal Extra Dimensions
Thomas Appelquist, Hsin-Chia Cheng, Bogdan A. Dobrescu
We show that the bound from the electroweak data on the size of extra dimensions accessible to all the standard model fields is rather loose. These "universal" extra dimensions cou…
Light Axion within the Next-to-Minimal Supersymmetric Standard Model
Bogdan A. Dobrescu, Konstantin T. Matchev
We analyze the Higgs sector in the Next-to-Minimal Supersymmetric Standard Model, emphasizing the possibility of a light CP-odd scalar (axion) in the spectrum. We compute the coupl…
Self-Breaking of the Standard Model Gauge Symmetry
Nima Arkani-Hamed, Hsin-Chia Cheng, Bogdan A. Dobrescu +1
If the gauge fields of the Standard Model propagate in TeV-size extra dimensions, they rapidly become strongly coupled and can form scalar bound states of quarks and leptons. If th…
Higgs Boson Decays to CP-odd Scalars at the Tevatron and Beyond
Bogdan A. Dobrescu, Greg Landsberg, Konstantin T. Matchev
In extended Higgs models, the Higgs boson may decay into a pair of light CP-odd scalars, with distinctive collider signatures. We study the ensuing Higgs signals at the upgraded Te…
Electroweak symmetry breaking by extra dimensions
Hsin-Chia Cheng, Bogdan A. Dobrescu, Christopher T. Hill
Electroweak symmetry breaking may be naturally induced by the observed quark and gauge fields in extra dimensions without a fundamental Higgs field. We show that a composite Higgs…