Abstract
No process without a standard model (SM) background has been observed so far. As a tool in the study of a class of models containing doubly charged vector bileptons, we propose one such process that, violating lepton flavor number conservation, has no contribution from the SM: $pp\to \mu^+\mu^+\mu^- e^-$. By carefully isolating the parameters to keep them free, we are able to acquire a notion of how a possible PMNS-like matrix present in the relevant charged current parametrization could affect the observables. We find that an interesting section of the space of parameters can be explored at the current LHC in the specified conditions.
Highlights
The Large Hadron Collider (LHC) has reached an excited stage of a large amount of data collection
Even though conclusive hints for new physics have been evasive, current data and the data that are expected to be collected at the high-luminosity (HL) stage open the possibility of turning the LHC into a precision machine
We explore the prospects for the LHC to discover doubly charged vector bileptons with the current luminosity
Summary
The Large Hadron Collider (LHC) has reached an excited stage of a large amount of data collection. Having no background, this sort of process may be the smoking gun of new physics and, of the discovery of doubly charged particles, which are, in many models, the biggest candidates to trigger these processes. Kind of particle is a very rare feature in models of new physics They occur, for example, in the minimal 3-3-1 model (m331 for short) [3,4,5], and in SUð15Þ grand unification [6,7]. If these sorts of particles do exist, resonances in like-sign leptons’ invariant mass could be observed at the LHC [8] in the (sub)process Uþþ → lþlþ.
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