Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-11-19
Phys.Rev.D83:094018,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
Published version in PRD
Scientific paper
10.1103/PhysRevD.83.094018
Higgs bosons can be produced copiously at the LHC via gluon fusion induced by top and bottom quark loops, and can be enhanced strongly if extra heavy quarks exist. We present results for Higgs +zero-, one- and two-jet production at the LHC, in both the Standard Model and the 4th generation model, by evaluating the corresponding heavy quark triangle, box and pentagon Feynman diagrams. We compare the results by using the effective Higgs-gluon interactions in the limit of heavy quarks with the cross sections including the full mass dependences. NLO effects with full mass dependence are included in the inclusive Higgs boson production rate. Our results improve the theoretical basis for fourth generation effects on the Higgs boson search at the LHC.
Gao Jun
Li Chong Sheng
Li Qiang
Spira Michael
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