Effects of the anomalous Higgs couplings on the Higgs boson production at the Large Hadron Collider

Shinya Kanemura, Koji Tsumura

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

We study the impact of dimension-six operators on single- and double-Higgs production rates via gluon fusion at the Large Hadron Collider (LHC). If the top-Yukawa coupling is modified by some new physics whose scale is of the TeV scale, its effect changes the cross sections of single-Higgs production gg→H and double-Higgs production gg→HH through the top-loop diagram. In particular, double-Higgs production can receive significant enhancement from the effective top-Yukawa coupling and the new dimension-five coupling which are induced by the dimension-six operator. Comparing these results to the forthcoming data at the LHC, one can extract information of the dimension-six operators relevant to the top quark and the Higgs boson.

Original languageEnglish
Pages (from-to)11-21
Number of pages11
JournalEuropean Physical Journal C
Volume63
Issue number1
DOIs
Publication statusPublished - Sep 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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