English

Higgs boson hadronic branching ratios at the ILC

High Energy Physics - Phenomenology 2014-11-21 v1

Abstract

We present a study of the Higgs boson decay branching ratios to bbˉb\bar{b}, ccˉc\bar{c} and gluons, one of the cornerstones of the physics program at the International Linear Collider (ILC). A standard model Higgs boson of 120\,GeV mass, produced in the Higgs-strahlung process at s=250\sqrt{s} = 250\,GeV was investigated using the full detector simulation and reconstruction procedures. The analysis was performed in the framework of the Silicon Detector (SiD) concept with full account of inclusive standard model backgrounds. The selected decay modes contained two heavy flavour jets in the final state and required excellent flavour tagging through precise reconstruction of interaction and decay vertices in the detector. A new signal discrimination technique using correlations of neural network outputs was used to determine the branching ratios and estimate their uncertainties, 4.8\%, 8.4\% and 12.2\% for bbˉb\bar{b}, ccˉc\bar{c} and gluons respectively.

Keywords

Cite

@article{arxiv.1007.2102,
  title  = {Higgs boson hadronic branching ratios at the ILC},
  author = {Yambazi Banda and Tomas Lastovicka and Andrei Nomerotski},
  journal= {arXiv preprint arXiv:1007.2102},
  year   = {2014}
}

Comments

9 Pages, 5 figures and 5 tables