Dhuria, MansiMansiDhuriaHati, ChandanChandanHatiRangarajan, RaghavanRaghavanRangarajanSarkar, UtpalUtpalSarkar2025-08-222025-08-222015-01-012331-8422http://arxiv.org/abs/1501.04815v1http://repository.iitgn.ac.in/handle/IITG2025/18132We show that superstring inspired E6 models can explain both the recently detected excess eejj and $e \slashed p_T jj$ signals at CMS, and also allow for leptogenesis. Working in a R-parity conserving low energy supersymmetric effective model, we show that the excess CMS events can be produced via the decay of exotic sleptons in alternative left-right symmetric models of E6, which can also accommodate leptogenesis at a high scale. On the other hand, either the eejj excess or the $e \slashed p_T jj$ excess can be produced via the decays of right handed gauge bosons, but some of these scenarios may not accommodate letptogenesis as there will be strong B−L violation at low energy, which, along with the anomalous fast electroweak B+L violation, will wash out all baryon asymmetry. Baryogenesis below the electroweak scale may then need to be implemented in these models.en-USCosmology HighEnergy PhysicsHigh Energy Physics - Theory (hep-th)Nongalactic Astrophysics (astro-ph.CO)Phenomenology (hep-ph)e-Print123456789/615