Producing and detecting long-lived particles at different experiments at the LHC

Understand

We propose a new strategy to look for long-lived particles (LLP) at the LHC.

• The LLPs are produced at one experiment, but its decay products are detected by a detector at another experiment.
• We use a confining Hidden Valley scenario as a benchmark.
• Through showering and hadronization, the multiplicity of hidden mesons can be large, and their decay products, dimuon as chosen in this study, are typically too soft to pass triggers in traditional LHC searches.