1999/07/31 by C. Boehm, A. Djouadi, Yann Mambrini +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Charm (quantum number) #Cosmology and Gravitation Theories #Fermion #Gauge (firearms) #Large Hadron Collider #Lightest Supersymmetric Particle #Massless particle #Minimal Supersymmetric Standard Model #Neutralino #Nuclear physics #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Physics #Quark #Standard Model (mathematical formulation) #Supersymmetry #Tevatron #Top quark #hep-ph
paper · pdf · doi:10.1103/physrevd.61.095006
published as Phys.Rev. D61 (2000) 095006 · 21 pages with 4 figures, Latex. Typo corrected and references updated. To appear in Phys. Rev. D
arxiv created 1999/10/04 · openalex publication_date 2000/04/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We analyze higher order decay modes of the lightest top squark t1 in the minimal supersymmetric (SUSY) extension of the standard model (MSSM), where the lightest SUSY particle (LSP) is assumed to be the neutralino \ensuremathχ10. For small t1 masses accessible at CERN LEP2 and the Fermilab Tevatron, we show that the four-body decay mode into the LSP, a bottom quark and two massless fermions, t1\ensuremath→b\ensuremathχ10ff^\ensuremath', can dominate in a wide range of the MSSM parameter space over the loop-induced decay into a charm quark and the LSP, t1\ensuremath→c\ensuremathχ10. This result might affect the experimental searches on this particle, since only the later signal has been considered so far.