28 July 2020 to 6 August 2020
virtual conference
Europe/Prague timezone

Higgs decay into a lepton pair and a photon revisited

29 Jul 2020, 17:36
18m
virtual conference

virtual conference

Talk 01. Higgs Physics Higgs Physics

Speakers

Mr Aliaksei Kachanovich (Karlsruhe Institute of Technology) Aliaksei Kachanovich (Karlsruhe Institute of Technology (KIT))

Description

We present new calculations of the differential decay rates for
$H\to \ell^+\ell^- \gamma$ with $\ell=e$ or $\mu$ in the Standard
Model. The branching fractions and forward-backward asymmetries, defined
in terms of the flight direction of the photon relative to the
lepton momenta, depend on the cuts on energies and invariant masses
of the final state particles.
For typical choices of these cuts we find the branching ratios
$B(H\to e \bar e \gamma)=6.1\cdot 10^{-5}$ and $B(H\to \mu \bar \mu \gamma)=6.7\cdot 10^{-5}$ and the forward-backward asymmetries
$ \mathcal{A}^{(e)}_{\text{FB}}=0.366$ and
$\mathcal{A}^{(\mu)}_{\text{FB}}=0.280$.

Secondary track (number) 04.

Primary authors

Mr Aliaksei Kachanovich (Karlsruhe Institute of Technology) Prof. Ulrich Nierste (Karlsruhe Institute of Technology) Dr Ivan Nišandžić (Karlsruhe Institute of Technology)

Presentation Materials