Conformal Completion of the Standard Model with a Fourth Generation

Abstract

We study dynamical electroweak symmetry breaking with a fourth generation within the $Z_n$ orbifolded $Ad{S}_5\otimes S^5$ framework. A realistic $Z_7$ example is discussed. The initial theory reduces dynamically, due to the induced condensates, to a four-family trinification near a TeV-scale conformal fixed point where the gauge hierarchy problem does not exist. We predict new gauge bosons and bifundamental fermions and scalars accessible by the LHC.

Comments: 7 pages, v3: version to appear in JHEP