Article

QCD NLO and EW NLO corrections to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi>t</mml:mi><mml:mover accent="true"><mml:mrow><mml:mi>t</mml:mi></mml:mrow><mml:mrow><mml:mo stretchy="false">¯</mml:mo></mml:mrow></mml:mover><mml:mi>H</mml:mi></mml:math>production with top quark decays at hadron collider

Z. YuDepartment of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, PR ChinaWen-Gan MaDepartment of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, PR ChinaZhang Ren-YouDepartment of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, PR ChinaChong ChenDepartment of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, PR ChinaLei GuoDepartment of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, PR China

2014lv

ABI

Abstract

Higgs boson production associated with a top quark pair is an important process in studying the nature of the newly discovered Higgs boson at the LHC. In this letter, we report on our calculations including the next-to-leading order (NLO) QCD and NLO electroweak corrections to the pp→tt¯H process in the standard model. We present the integrated cross sections at the 14 TeV LHC and even at the future proton–proton colliders with s=33 and 100TeV. Our calculation includes the top quark subsequent decays by adopting the narrow width approximation. The kinematic distributions of Higgs boson and top quark decay products at the LHC are provided. We find that the O(αs2αew2) corrections are quantitatively comparable with the O(αs3αew) corrections in some kinematic region.

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Identifiers

DOI: 10.1016/j.physletb.2014.09.022

Citations and references

Cited by 40 references

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