Re-evaluating Jet Reconstruction Techniques for New Higgs Boson Searches
December 22, 2022
The ultimate motivation of our study is to look for signs of physics beyond the Standard Model (BSM). We investigate whether different jet clustering techniques might be more or less suited to the particular final states of interest. In particular, we are interested in fully hadronic final states emerging from the decay chain of the Standard Model like Higgs boson into pairs of light Higgs states, the latter in turn decaying into 𝑏𝑏 pairs. We show that the ability to select the multi-jet final state and to reconstruct invariant masses of the Higgs bosons from it depends strongly on the choice of acceptance cuts, resolution parameters, and reconstruction algorithm as well as its settings. Hence, we indicate the optimal choice of the latter for the purpose of establishing such a benchmark as a BSM signal. We then repeat the exercise for a heavy Higgs boson cascading into two SM-like Higgs states, obtaining similar results.
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