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 (A_{d}) that gets mass via a hidden scalar (h_{d}) vacuum expectation value. The 125GeV 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.
Highlights
We propose a search for Higgs decays with as many as 8 leptons in the final state
In this Letter, we present an as yet unattempted measurement that could be done to probe physics beyond the standard model (SM)
The first decay occurs through the Higgs portal operator and current limits allow its branching ratio to be as large as Oð10%Þ
Summary
The first decay occurs through the Higgs portal operator and current limits allow its branching ratio to be as large as Oð10%Þ. The Higgs portal coupling does not mediate hidden vector decays at tree level.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
