Reconstruction of Higgs bosons in the di-tau channel via 3-prong decay

Abstract

We propose a method for reconstructing the mass of a particle, such as the Higgs boson, decaying into a pair of tau leptons, of which one subsequently undergoes a 3-prong decay. The kinematics is solved using information from the visible decay products, the missing transverse momentum, and the 3-prong tau decay vertex, with the detector resolution taken into account using a likelihood method. The method is shown to give good discrimination between a 125 GeV Higgs boson signal and the dominant backgrounds, such as Z decays to tau tau and W plus jets production. As a result, we find an improvement, compared to existing methods for this channel, in the discovery potential, as well as in measurements of the Higgs boson mass and production cross section times branching ratio.

19 pages, 8 figures

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Cited by in corpus (10)

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• Reconstructing semi-invisible events in resonant tau pair production from Higgs
• TauSpinner: a tool for simulating CP effects in H to tau tau decays at LHC
• Higgs boson to di-tau channel in Chargino-Neutralino searches at the LHC
• Reconstructing particle masses in events with displaced vertices
• Exploring CP phase in $\tau$-lepton Yukawa coupling in Higgs decays at the LHC
• Measuring $CP$ nature of $h\tau \bar{\tau }$ coupling at $e^{-}p$ collider
• A mass reconstruction technique for a heavy resonance decaying to ${\tau }^{+}{\tau }^{-}$
• Tau reconstruction methods at an electron-positron collider in the search for new physics