Charged Higgs Production in Association with W Boson at Photon Colliders
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It is important to explore the Higgs sector in order to identify the model beyond the standard model. We study the charged Higgs production in the $γγ$ mode of a linear collider (LC) with 1000 GeV center of mass energy. We show that the cross sections for the $γγ\to H^\pm W^\mp$ processes can be significantly enhanced in the two Higgs doublet model (THDM). The cross section can reach 0.1 - 100 fb which is comparable to other charged Higgs boson production processes at a photon collider. While for other processes the cross sections are too small for $m_H^\pm \geq 500$ GeV, $0.1 - 100$ fb can be expected in the $γγ\to H^\pm W^\mp$ processes for $m_H^\pm \geq 570$ GeV when $m_{A^0}=800$ GeV. Therefore, even if the charged Higgs bosons can not be detected at the Large Hadron Collider (LHC), and even if the charged Higgs bosons are too heavy to be detected in other charged Higgs boson production processes at the LC, it may be possible to detect them in this process.
To appear in the proceedings of 2005 International Linear Collider Workshop (LCWS 2005), Stanford, California, 18-22 Mar 2005
To appear in the proceedings of 2005 International Linear Collider Workshop (LCWS 2005), Stanford, California, 18-22 Mar 2005