Searching for New Physics in the Three-Body Decays of the Higgs-like Particle

Abstract

We show that the three-body decays of the resonance recently discovered at the LHC are potentially sensitive to effects of new physics. Even if the fully integrated partial decay widths are consistent with the minimal Standard Model there is information that is lost upon integration, which can be uncovered in the differential decay widths. Concentrating on the decay $h\to Z\ell \bar{\ell }$, we identify the regions in the three-body phase space in which these effects become especially pronounced and could be detected in future experiments.

20 pages, 5 figures, matches version published in JHEP

References in corpus (6)

• Parton distributions for the LHC
• FeynRules - Feynman rules made easy
• Light scalar at LHC: the Higgs or the dilaton?
• Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs
• Aspects of CP violation in the HZZ coupling at the LHC
• On Gauge Invariance and Minimal Coupling

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