Higgs Boson Production via Gluon Fusion in the Standard Model with four Generations

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...

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Bibliographic Details
Published in:arXiv.org 2011-11
Main Authors: Li, Qiang, Spira, Michael, Gao, Jun, Chong Sheng Li
Format: Article
Language:English
Subjects:
Bosons
Dependence
Feynman diagrams
Higgs bosons
Large Hadron Collider
Quarks
Online Access:Get full text
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.1011.4484