English

Higgs decay into two leptons and a photon revisited

High Energy Physics - Phenomenology 2020-12-01 v1

Abstract

I present new results for the Standard-Model predictions of the differential decay rates for H+γH\to \ell^{+} \ell^{-} \gamma, where =e,μ\ell=e, \mu, and the forward-backward asymmetries defined in terms of the flight direction of the photon corresponding to the lepton momenta. The results dependend on the cuts on energies and invariant masses of the final state particles. For standard choices of these cuts the branching ratios B(Heeˉγ)=5.8105B(H\to e \bar e \gamma)=5.8\cdot 10^{-5} and B(Hμμˉγ)=6.4105B(H\to \mu \bar \mu \gamma)=6.4\cdot 10^{-5} as well as the forward-backward asymmetries AFB(e)=0.343\mathcal{A}^{(e)}_{\text{FB}}=0.343 and AFB(μ)=0.255\mathcal{A}^{(\mu)}_{\text{FB}}=0.255 have been found.

Keywords

Cite

@article{arxiv.2011.14019,
  title  = {Higgs decay into two leptons and a photon revisited},
  author = {Aliaksei Kachanovich},
  journal= {arXiv preprint arXiv:2011.14019},
  year   = {2020}
}

Comments

6 pages, 4 figures, contribution to: ICHEP2020

R2 v1 2026-06-23T20:33:53.394Z