Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-03-14
Phys.Rev.Lett.99:031801,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 1 figure, revtex. This version matches the published version in Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.99.031801
The dominance of $h\to \eta \eta$ decay mode for the intermediate mass Higgs boson is highly motivated to solve the little hierarchy problem and to ease the tension with the precision data. However, the discovery modes for $m_h \alt 150$ GeV, $h \to \gamma\gamma$ and $W/Z h \to (\ell\nu/\ell \bar \ell) (b\bar b)$, will be substantially affected. In this Letter, we show that $h \to \eta \eta \to 4b$ is complementary and we can use this decay mode to detect the intermediate Higgs boson at the LHC, via $Wh$ and $Zh$ production. Requiring at least one charged lepton and 4 $B$-tags in the final state, we can identify a clean Higgs boson signal for $m_h \alt 150$ GeV with a high significance and with a full Higgs mass reconstruction. We use the next-to-minimal supersymmetric standard model and the simplest little Higgs model for illustration.
Cheung Kingman
Song JeongHyeon
Yan Qi-Shu
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