Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 47: Higgs-Boson (Eigenschaften) (theo.+exp.)

T 47.4: Talk

Tuesday, March 1, 2016, 17:30–17:45, VMP5 HS B1

Development of the morphing method for signal modelling and parameter extraction from ATLAS data, using effective operators in the H→ W⁺W⁻ → ℓ⁺νℓ⁻ν process — •Carsten Burgard and Karsten Köneke — Physikalisches Institut, Albert-Ludwigs-Universität Freiburg

Given the parameter space of all physically conceivable Lagrange operators connected to physics beyond the Standard Model in the Higgs-boson sector, it seems unfeasible to conduct dedicated analyses for every new scenario. Instead, a fast, continuous, and analytical method of signal modelling would not only help to conduct hypothesis tests more efficiently, but would also allow to directly measure and derive limits on the coefficients of the individual terms in the matrix element. Similar approaches, such as Matrix-Element-Reweighting can not only be outperformed significantly by the morphing technique for some applications, but also be used complementarily and in conjunction with this new approach. This talk explores the applications in the context of effective Lagrangians for analyses of Higgs bosons decaying into two vector bosons for leptonic final states.