Double fermiophobic Higgs boson production at the LHC and LC
Abstract
We consider the phenomenology of a fermiophobic Higgs boson (hf) at the Large Hadron Collider (LHC) and a e+e- Linear Collider (LC). At both machines the standard production mechanisms which rely on the coupling hfVV (V=W,Z) can be very suppressed at large tan beta. In such cases the complementary channels pp to H hf, A0 hf and e+e- to A0 hf offer promising cross-sections. Together with the potentially large branching ratios for H to hfW* and A0 to hfZ*, these mechanisms would give rise to double hf production, leading to signatures of gamma gamma gamma gamma, gamma gamma VV and VVVV.
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