Skip to Main content Skip to Navigation
Conference papers

Towards a new paradigm for quark-lepton unification

Abstract : The quark and lepton mass patterns upset their naive unification. In this talk, a new approach to solve this problem is presented. Model-independently, we show that a successful unification can be achieved. A mechanism is identified by which the large top quark mass renders its third-generation leptonic partner very light. This state is thus identified with the electron. We then discuss a generic dynamical implementation of this mechanism, using tree-level exchanges of vector leptons to relate the quark and lepton flavor structures. In a supersymmetric context, this same mechanism splits the squark masses, and third generation squarks end up much lighter than the others. Finally, the implementation of this mechanism in SU(5) GUT permits to avoid introducing any flavor structure beyond the two minimal Yukawa couplings, ensuring the absence of unknown mixing matrices and their potentially large impact on FCNC.
Document type :
Conference papers
Complete list of metadata
Contributor : Emmanuelle Vernay Connect in order to contact the contributor
Submitted on : Wednesday, April 19, 2017 - 12:45:51 PM
Last modification on : Tuesday, May 11, 2021 - 11:36:50 AM


  • HAL Id : in2p3-01510285, version 1




C. Smith. Towards a new paradigm for quark-lepton unification. New Physics at the Junction of Flavor and Collider Phenomenology, Apr 2017, Portoroz, Slovenia. ⟨in2p3-01510285⟩



Record views