Holographic Techni-dilaton, or Conformal Higgs

Abstract

We study a holographic model dual to walking/conformal technicolor (W/C TC) deforming a hard-wall type of bottom-up setup by including effects from techni-gluon condensation. We calculate masses of (techni-) $\rho$ meson, $a_1$ meson, and flavor/chiral-singlet scalar meson identified with techni-dilaton (TD)/conformal Higgs boson, as well as the $S$ parameter. It is shown that gluon contributions and large anomalous dimension tend to decrease specifically mass of the TD. In the typical model with $S\simeq 0.1$, we find $m_{\mathrm{TD}}\simeq 600$ GeV, while $m_{\rho },m_{a_1}\simeq 4\mathrm{TeV}$.

Comments: To appear in proceedings of SCGT09, Nagoya, Japan, 4 pages