Searches for Majorana Neutrinos and Direct Searches for Exotics at LHCb

TL;DR

This paper reports LHCb's search for Majorana neutrinos and exotic particles using Run I data, focusing on rare decay channels and direct production, highlighting LHCb's unique detection capabilities.

Contribution

It presents the first LHCb results on Majorana neutrino searches in B and D decays and explores direct production of various exotic particles.

Findings

No significant signals observed for Majorana neutrinos or exotics.

Established new limits on the masses and couplings of potential Majorana neutrinos.

Demonstrated LHCb's unique sensitivity to certain exotic particles.

Abstract

These proceedings present the LHCb results on Majorana neutrino searches and direct production of exotic particles using the data collected during Run I of LHC. For the former, Majorana neutrinos are searched for both on-shell and off-shell in $B$ and $D$ decays to final states with two same-sign muons. For the latter, different types of new particles are studied profiting the unique coverage of LHCb with respect to other detectors.