English

Quarkonium resonance identified with the 125 GeV boson

High Energy Physics - Phenomenology 2013-03-20 v5

Abstract

The 125 GeV resonance discovered at the LHC could be a heavy quarkonium, spin 0 pseudoscalar meson ζ0\zeta^0. The decay rates of the ζ0\zeta^0 meson resonance are calculated and compared to the standard model Higgs boson decay rates. The branching ratios and signal strengths for ζγγ\zeta\rightarrow\gamma\gamma, ζZγ\zeta\rightarrow Z\gamma, ζZZ\zeta\rightarrow ZZ^* and ζWW\zeta\rightarrow WW^* are approximately the same as the Higgs boson branching ratios and signal strengths. The decay rates for ζτ+τ\zeta\rightarrow\tau^+\tau^-, ζbbˉ\zeta\rightarrow b\bar b and ζccˉ\zeta\rightarrow c\bar c are suppressed compared to the Higgs boson decay rates. Accurate branching ratios and signal strengths obtained at the LHC can distinguish between the standard model Higgs boson and the heavy composite ζ\zeta meson resonance.

Keywords

Cite

@article{arxiv.1211.2746,
  title  = {Quarkonium resonance identified with the 125 GeV boson},
  author = {J. W. Moffat},
  journal= {arXiv preprint arXiv:1211.2746},
  year   = {2013}
}

Comments

11 pages, no figures. Further revisions. References updated. arXiv admin note: text overlap with arXiv:1207.6015