# Impact on the Higgs Production Cross Section and Decay Branching Fractions of Heavy Quarks and Leptons in a Fourth Generation Model

Abstract : In a fourth generation model with heavy quarks, the production cross section of the Higgs boson in the gluon-gluon fusion process is significantly increased due to additional quark loops. In a similar way, the partial decay width of the decay channels $H\rightarrow gg, \gamma \gamma$ and $\gamma Z$ is modified. These changes and their impact on the Higgs search are discussed.
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http://hal.in2p3.fr/in2p3-00604637
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Submitted on : Wednesday, June 29, 2011 - 1:35:44 PM
Last modification on : Wednesday, September 16, 2020 - 4:14:11 PM

### Identifiers

• HAL Id : in2p3-00604637, version 1
• ARXIV : 1105.1634

### Citation

X. Ruan, Z. Zhang. Impact on the Higgs Production Cross Section and Decay Branching Fractions of Heavy Quarks and Leptons in a Fourth Generation Model. 2011. ⟨in2p3-00604637⟩

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