2006/11/30 by Marek Karliner, Harry J. Lipkin · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1016/j.physletb.2008.01.023
published as Phys.Lett.B660:539-544,2008 · Updated section on doubly strange diquarks
arxiv created 2007/09/03 · openalex publication_date 2008/01/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The recent measurement by CDF M(Σb)−M(Λb)=192 MeV is in striking agreement with our theoretical prediction M(Σb)−M(Λb)=194 MeV. In addition, the measured splitting M(Σb∗)−M(Σb)=21 MeV agrees well with the predicted splitting of 22 MeV. We point out the connection between these predictions and an effective supersymmetry between mesons and baryons related by replacing a light antiquark by a light diquark. We discuss the theoretical framework behind these predictions and use it to provide additional predictions for the masses of spin-12 and spin-32 baryons containing heavy quarks, as well as for magnetic moments of Λb and Λc.