2015/01/31 by Mansi Dhuria, Chandan Hati, Raghavan Rangarajan +1 · 22 citations
Physics and Astronomy · #Baryogenesis #Dark Matter and Cosmic Phenomena #Electron #Electroweak interaction #Electroweak scale #Leptogenesis #Lepton #Neutrino #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #astro-ph.CO #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.91.055010
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 91(5) (American Physical Society) · v3: 9 pages, 9 figures, matches published version
openalex publication_date 2015/03/12 · arxiv created 2015/03/24 · arxiv updated 2015/03/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We show that superstring-inspired E6 models can explain both the recently detected excess eejj and e)pTjj signals at CMS and also allow for leptogenesis. Working in an 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 Model of E6, which can also accommodate leptogenesis at a high scale. On the other hand, either the eejj excess or the e)pTjj 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\ensuremath-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.