Sneutrino Higgs models explain lepton non-universality in CMS excesses

TL;DR

This paper explores supersymmetric models where the Higgs is a sneutrino, providing a potential explanation for lepton non-universality observed in CMS excesses involving electrons and jets, and predicts future multilepton signals.

Contribution

It introduces a sneutrino Higgs model that naturally explains lepton flavor structure and alleviates tensions with experimental data while predicting correlated future signals.

Findings

Model accounts for lepton non-universality in CMS excesses

Significantly reduces tension with Standard Model predictions

Predicts correlated multilepton excesses in future searches

Abstract

Recent searches for first-generation leptoquarks and heavy right-handed $W_R$ bosons have seen excesses in final states with electrons and jets. A bizarre property of these excesses is that they appear to violate lepton universality. With these results in mind, we study the phenomenology of supersymmetric models in which the Higgs arises as the sneutrino in an electron supermultiplet. Since the electron is singled out in this approach, one can naturally account for the lepton flavor structure of the excesses. In this work, we show that in such a framework, one can significantly alleviate the tension between the Standard Model and the data and yet evade current constraints from other searches. Lastly we point out that correlated excesses are expected to be seen in future multilepton searches.