What if bb does not dominate the decay of the Higgs-like boson?

requires more data to reduce its large error bar. We investigate the possibility of this channel with largest uncertainty not dominating the decay of Higgs-like boson discovered at the LHC. In such scenarios, the Higgs signal shows highly suppressed

b\bar{b}

, slightly reduced

\tau^{+}\tau^{-}

and moderately enhanced gauge bosons comparing with the SM predictions. The model requires two different sources of electroweak symmetry breaking and radiative correction to

m_{b}

strongly enhanced. However, large reduction in

b\bar{b}

usually results large enhancement in

\tau^{+}\tau^{-}

mode in particular. The reduction of

\tau^{+}\tau^{-}

therefore implies that a new decay mode is inevitable. We find that a non-decoupling MSSM Higgs decay into lighter Higgs

H\to hh

may fit the signature. Here, MSSM

H

is identified as the 126 GeV resonance while

h

is below

M_{H}/2

and can evade the direct search bound at LEPII and Tevatron. Large

PQ

and

R

symmetry breaking effects mediated by strong interaction can strongly enhance radiative corrections in

m_b

. However, the scenario can only be realized in highly fine-tuned parameter region where

G_{Hhh}

is tiny. Nevertheless, we discuss the discovery potential of this highly fine-tuned

H\to hh

at the LHC.

Note:

12 pages, 2 figures

electroweak interaction: symmetry breaking
CERN LHC Coll
minimal supersymmetric standard model
radiative correction
decay modes
gauge boson
Batavia TEVATRON Coll
associated production
enhancement
suppression

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