Abstract
Searches for invisible Higgs decays in weak boson fusion are a well-known laboratory for jets and QCD studies. We present a series of results on tagging jets and central jet activity. First, precision analyses of the central jet activity require full control of single top production in some analyses. Second, the rate dependence on the size of the tagging jets is not limited to weak boson fusion. For the first time, we show how subjet information on the tagging jets and on the additional jet activity can be used to extract the Higgs signal. The additional observables relieve some of the pressure on other, critical observables. Finally, we compare the performance of weak boson fusion and associated Higgs production.
Highlights
2 V+jets backgrounds A Appendix ZH benchmark
In this study we focus on the WBF production channel and possible improvements through an improved understanding of the tagging jets and the central jet activity
We show the results for the second tagging jet in two slices pT,j2 = 20 ... 40 GeV and pT,j2 > 40 GeV
Summary
2 V+jets backgrounds A Appendix ZH benchmark. After the pre-selection cuts of Eq (3) it turns out that the largest backgrounds to invisible Higgs decays in WBF are clearly QCD processes radiating a weak boson, V = W, Z. That WBF signal and QCD backgrounds differ in the partonic nature of the hard jet and that there are PF-level observables which can separate quarks and gluons, we apply these observables to the fully simulated tagging jets.
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