2010/09/17 by Motoi Endo, Satoshi Shirai, Tsutomu T. Yanagida · 1 citation
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1143/ptp.125.921
published as Prog.Theor.Phys.125:921-932,2011 · 15 pages, 1 figure
arxiv created 2010/09/17 · openalex publication_date 2011/05/01 · arxiv updated 2011/08/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We show that the like-sign di-muon anomaly reported recently by the D0 Collaboration can be explained in the supersymmetric standard model (SM) if the squarks and the sleptons in the first two generations have relatively small, but degenerate mass spectrum, and those in the third generation are larger as O(1–10) TeV. This split generation model provides large contributions to the Bs−Bs mixing, although most of the FCNC are suppressed due to the large masses of the third generation squarks or the GIM mechanism partially acting on the first and second generations.