Generation of baryon asymmetry in the E6CHM

Bibliographic Details
Title: Generation of baryon asymmetry in the E6CHM
Authors: Nevzorov, R., Thomas, A. W.
Publication Year: 2018
Collection: High Energy Physics - Phenomenology
Subject Terms: High Energy Physics - Phenomenology
More Details: The strongly interacting sector in the E6 inspired composite Higgs model (E6CHM) with baryon number violation possesses SU(6)\times U(1)_L global symmetry. In the weakly-coupled sector of this model the U(1)_L symmetry associated with lepton number conservation is broken down to a Z^L_2 discrete symmetry, which stabilizes the proton. Near the scale f > 10 TeV the SU(6) symmetry is broken down to its SU(5) subgroup, giving rise to a set of pseudo-Nambu-Goldstone bosons (pNGBs) that involves the SM-like Higgs doublet, a scalar coloured triplet and a SM singlet boson. Because f is so high, all baryon number violating operators are sufficiently strongly suppressed. Nevertheless, in this variant of the E6CHM the observed matter-antimatter asymmetry can be induced if CP is violated. The pNGB scalar coloured triplet plays a key role in this process and leads to a distinct signature that may be detected at the LHC in the near future.
Comment: Presented at 20th International Seminar on High Energy Physics (QUARKS-2018), Valday, Russia, 27 May - 2 June, 2018
Document Type: Working Paper
Access URL: http://arxiv.org/abs/1808.01982
Accession Number: edsarx.1808.01982
Database: arXiv
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