A fully differential SMEFT analysis of the golden channel using the method of moments

Author:

Banerjee ShankhaORCID,Gupta Rick S.,Ochoa-Valeriano Oscar,Spannowsky Michael,Venturini Elena

Abstract

Abstract 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 → 4 and constrain gauge-Higgs coupling modifications parametrised 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 → 4 with Higgs-associated production processes, Wh and Zh, we obtain the strongest reported bounds on anomalous gauge-Higgs couplings.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Reference109 articles.

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