2004/07/21 by J.-Alexis Rodrı́guez, J. -Alexis Rodriguez, Marc Sher · 3 citations
Mathematics · Physics and Astronomy · #Charge (physics) #Combinatorics #Dark Matter and Cosmic Phenomena #Electroweak interaction #Mathematics #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #hep-ph
paper · pdf · doi:10.1103/physrevd.70.117702
published as Phys.Rev.D70:117702,2004 · 14 pages, no figures
arxiv created 2004/07/21 · openalex publication_date 2004/12/09 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
An interesting extension of the standard model is based on the electroweak gauge group SU(3)L\ifmmode×\else\texttimes\fiU(1). It requires three generations to cancel anomalies, treats the third generation differently than the first two, and has a rich phenomenology. There are several models, distinguished by the embedding of the charge operator into the SU(3)L group and by the choice of fermion representations. In this brief report, we consider flavor-changing neutral currents in these models, concentrating on the P\ensuremath-P mass difference, where P=(K,D,B,Bs), as well as B\ensuremath→Kl+l^\ensuremath-, B\ensuremath→\ensuremathμ+\ensuremathμ^\ensuremath-, and Bs\ensuremath→\ensuremathμ+\ensuremathμ^\ensuremath- decays. Although the P\ensuremath-P mass difference has been considered previously in some models, the rare B decays are new. We find that the strongest bounds come from the B\ensuremath-B and Bs\ensuremath-Bs mass difference.