Higgs Boson with Large Bottom Yukawa Coupling at Tevatron and LHC

Abstract

We study the discovery reach of the Tevatron and the LHC for detecting a Higgs boson (h), predicted in composite models of the electroweak symmetry breaking or in supersymmetric theories, with an enhanced b-quark Yukawa coupling via p \bar{p} / p p \to b \bbar h (\to b \bbar) + X. Our analysis shows that studying this process at the Tevatron Run II or the LHC can provide strong constraints on these models.

Figures (2)

• Figure 1: Discovery reach of Tevatron and LHC for the models of 2HDE (a) and TCATC (b). Regions above the curves can be discovered at $95\%$C.L. In (b), the straight lines indicate $y_t(\mu =m_t)$ values for typical values of the topcolor breaking scale $\Lambda$, and $y_b$ is predicted to be very close to $y_t$.
• Figure 2: The regions above the curves in the $\tan \beta$-$m_A$ plane can be probed at Tevatron and LHC with a $95\%$ C.L..