Displaced tracks as a signal of dark matter co-annihilation: a case study using inert doublet model at $e^{+}{e}^{-}$ collider

Hrishikesh Deka, Subhaditya Bhattacharya, Amir Subba +1

Dark sector containing heavy (charged) particles with small mass splitting with dark matter (DM) can co-annihilate and produce correct relic density, evading direct detection bound…