Supersymmetric Electroweak Corrections to Charged Higgs Boson Production in Association with a Top Quark at Hadron Colliders
نویسندگان
چکیده
We calculate the O(αewm 2 t(b)/m 2 W ) and O(αewm 4 t(b)/m 4 W ) supersymmetric electroweak corrections to the cross section for the charged Higgs boson production in association with a top quark at the Tevatron and the LHC. These corrections arise from the quantum effects which are induced by potentially large Yukawa couplings from the Higgs sector and the chargino-top(bottom)-sbottom(stop) couplings, neutralino-top(bottom)-stop(sbottom) couplings and charged Higgs-stop-sbottom couplings. They can decrease or increase the cross section depending on tanβ but are not very sensitive to the mass of the charged Higgs boson for high tanβ. At low tanβ(= 2) the corrections decrease the total cross sections significantly, which exceed −12% for mH± below 300GeV at both the Tevatron and the LHC, but for mH± > 300GeV the corrections can become very small at the LHC. For high tanβ(= 10, 30) these corrections can decrease or increase the total cross sections, and the magnitude of the corrections are at most a few percent at both the Tevatron and the LHC. PACS number: 14.80.Bn, 14.80.Cp, 13.85.QK, 12.60.Jv
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