### 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)