2010/01/01 by Tarek Ibrahim, Pran Nath · 1 citation
Physics and Astronomy · #CP violation #Dark Matter and Cosmic Phenomena #Dipole #Electric dipole moment #Electron #Gauge (firearms) #Lepton #Lepton number #Neutrino #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Standard Model (mathematical formulation) #hep-ph
paper · pdf · doi:10.1103/physrevd.81.033007
published as Phys.Rev.D81:033007,2010 · 16 pages, 4 figures. Accepted for publication in Physical Review D
arxiv created 2010/01/01 · openalex publication_date 2010/02/11 · arxiv updated 2010/04/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It is shown that the electric dipole moment of the \ensuremathτ lepton several orders of magnitude larger than predicted by the standard model can be generated from mixings in models with vectorlike mutiplets. The electric dipole moment (EDM) of the \ensuremathτ lepton arises from loops involving the exchange of the W, the charginos, the neutralinos, the sleptons, the mirror leptons, and the mirror sleptons. The EDM of the Dirac \ensuremathτ neutrino is also computed from loops involving the exchange of the W, the charginos, the mirror leptons, and the mirror sleptons. A numerical analysis is presented, and it is shown that the EDMs of the \ensuremathτ lepton and the \ensuremathτ neutrino which lie just a couple of orders of magnitude below the sensitivity of the current experiment can be achieved. Thus the predictions of the model are testable in an improved experiment on the EDM of the \ensuremathτ and the \ensuremathτ neutrino.