Detecting long-lived particles trapped in detector material at the LHC

Authors:
Open Access
Publisher website
Google Scholar
Abstract
We propose a two-stage strategy to search for new long-lived particles that could be produced at the CERN LHC, become trapped in detector material, and decay later. In the first stage, metal rods are exposed to LHC collisions in an experimental cavern. In the second stage, they are immersed in liquid argon at a different location, where out-of-time decays could be detected. Using a benchmark of pair-produced long-lived gluinos, we show that this experiment would have unique sensitivity to gluino-neutralino mass splittings down to 3 GeV, in previously uncovered lifetimes of days to years.
Funding Information
  • U.S. Department of Energy
  • Office of Science
  • Fermi Research Alliance, LLC (DE-AC02-07CH11359)

This publication has 30 references indexed in Scilit: