Searching for Higgs Decays to as Many as 8 Leptons.

Phys Rev Lett

Ottawa-Carleton Institute for Physics, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada.

Published: November 2018

We propose a search for Higgs decays with as many as 8 leptons in the final state. This signal can arise in a simple model with a hidden vector (A_{d}) that gets mass via a hidden scalar (h_{d}) vacuum expectation value. The 125 GeV Higgs boson can then decay H→h_{d}h_{d}→4A_{d}→8f, where f are standard model fermions. We recast current searches and show that a branching ratio (BR) of H→h_{d}h_{d} as large as 10% is allowed. We also describe a dedicated search that could place bounds on BR(H→h_{d}h_{d}) as low as 10^{-5} using only 36  fb^{-1} of data, with significant improvements coming from greater integrated luminosity.

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http://dx.doi.org/10.1103/PhysRevLett.121.221803DOI Listing

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