Deep learning approach to the Higgs boson CP measurement in H to tau tau decay and associated systematics
Abstract
The H to tau tau decays form the prime channel for the measurement of the Higgs boson state and tests of the CP invariance of Higgs boson couplings. A previous study has shown the viability of deep learning techniques for the measurement. In this paper, the study is expanded. Effects due to the partial modelling of experimental effects are discussed. Furthermore, systematics due to ? decay modelling for complex cascade decays to taupm to a1pm nutau to rho0 pipm nutau to 3pi nutau are also addressed. Various parameterisations are considered using low-energy collision data.
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