Searching for Higgs Decays to as Many as 8 Leptons

Izaguirre, Eder (Brookhaven National Laboratory, Upton, New York 11973, USA) ; Stolarski, Daniel (Ottawa-Carleton Institute for Physics, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario K1S 5B6, Canada)

03 December 2018

Abstract: 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 (Ad) that gets mass via a hidden scalar (hd) vacuum expectation value. The 125 GeV Higgs boson can then decay Hhdhd4Ad8f, where f are standard model fermions. We recast current searches and show that a branching ratio (BR) of Hhdhd as large as 10% is allowed. We also describe a dedicated search that could place bounds on BR(Hhdhd) as low as 105 using only 36 fb1 of data, with significant improvements coming from greater integrated luminosity.

Published in: Physical Review Letters 121 (2018)
Published by: APS
DOI: 10.1103/PhysRevLett.121.221803
arXiv: 1805.12136
License: CC-BY-4.0

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