Oct 2018 - Sep 2019

Hadronic decay of a light Higgs-like scalar

by Dr Alexander Monin

Europe/London
Description

A number of extensions of the Standard Model predicts Higgs sector with additional light scalars. Currently operating and planned Intensity Frontier experiments will probe for the existence of such particles, while theoretical computations are plagued by uncertainties. I revisit the question of hadronic decays of a GeV-mass Higgs-like scalar. To this end I'll provide a physically motivated fitting ansatz for the decay width that reproduces the previous non-perturbative numerical analysis. I describe systematic uncertainties of the non-perturbative method and provide explicit examples of the influence of extra resonances above 1.4 GeV onto the total decay width.

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