2002/02/15 by Junji Hisano, Ryuichiro Kitano, Mihoko M. Nojiri
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.65.116002
published as Phys.Rev.D65:116002,2002 · 29 pages, 10 figures
arxiv created 2002/02/15 · openalex publication_date 2002/05/29 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The measurement of lepton-flavor violation (LFV) in the minimal SUSY standard model at the CERN Large Hadron Collider (LHC) is discussed based on a realistic simulation. We consider the LFV decay of the second-lightest neutralino, \stackrel\ifmmode \else \~\fi\ensuremathχ20\ensuremath→\stackrel\ifmmode \else \~\fill^\ensuremath'\ensuremath→ll^\ensuremath'\stackrel\ifmmode \else \~\fi\ensuremathχ10, in the case where flavor mixing exists in the right-handed sleptons. We scan the parameter space of the minimal supergravity model (MSUGRA) and a more generic model in which we take the Higgsino mass \ensuremathμ as a free parameter. We find that the possibility of observing LFV at LHC is higher if \ensuremathμ is smaller than the MSUGRA prediction; the LFV search at LHC can cover the parameter range where the \stackrel\ensuremath→\ensuremathμe\ensuremathγ decay can be suppressed by cancellation among the diagrams for this case.