Event calendar file
11-13 May 2021
Mexico/General timezone
- jose.benitez@cern.ch
Support
Electroweak and Flavor Physics
A fully differential SMEFT analysis of the golden channel using the Method of Moments
Speakers
- Mr. Oscar OCHOA-VALERIANO
Primary authors
- Dr. Shankha BANERJEE (CERN)
- Dr. Rick S. GUPTA (Durham University)
- Mr. Oscar OCHOA-VALERIANO (Durham University)
- Prof. Michael SPANNOWSKY (Durham University)
- Dr. Elena VENTURINI (Technische Universität München)
Summary
The Method of Moments is a powerful framework to disentangle the relative contributions of amplitudes of a specific process to its various phase space regions. We apply this method to carry out a fully differential analysis of the Higgs decay channel $h \rightarrow 4\ell$ and constrain gauge-Higgs coupling modifications parameterised by dimension-six effective operators. We find that this analysis approach provides very good constraints and minimises degeneracies in the parameter space of the effective theory. By combining the decay $h \rightarrow 4\ell$ with Higgs-associated production processes, $Wh$ and $Zh$, we obtain the strongest reported bounds on anomalous gauge-Higgs couplings.
Contribution type
Oral
