Several extensions of the standard model predict the existence of additional Z bosons, which could possibly be in the 100-400 GeV range. In these schemes the new gauge boson is generally strongly coupled to heavy Majorana neutrinos which have highly distinctive decay modes. Amongst these are like-sign dileptons and monojets. We present an analysis of the system and discuss the implications for future hadron and e+e- colliders. Combining the results of our study with constraints from neutral current and collider data, we show that the CERN monojets cannot be explained by this system.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics