Generalised Holographic Electroweak Symmetry Breaking Models and the Possibility of Negative S
arXiv:1104.4037 · doi:10.1103/PhysRevD.84.013012
Abstract
Within an AdS/CFT inspired model of electroweak symmetry breaking the effects of various boundary terms and modifications to the background are studied. The effect on the S precision parameter is discussed with particular attention to its sign and whether the theory is unitary when S<0. Connections between the various possible AdS slice models of symmetry breaking are discussed.
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- S-parameter at Non-Zero Temperature and Chemical Potential