1993/08/04 by Benjamı́n Grinstein, Benjamin Grinstein · 4 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevlett.71.3067
published as Phys.Rev.Lett.71:3067-3069,1993 · 7pp, SSCL-Preprint-492
arxiv created 1993/08/04 · openalex publication_date 1993/11/08 · arxiv updated 2010/11/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We observe that quantities like (fBs/fB)/(fDs/fD) are predicted to be unity both by heavy quark and by light quark flavor symmetries. Hence, the deviation from the symmetry prediction must be simultaneously small in both symmetry breaking parameters, i.e., order of the ratio of light to heavy quark masses. We estimate the size of the correction. We observe that the ratio of (\ensuremathΔM/\ensuremathΓ) for B_s\mathrm\ensuremath-B\mathrm\ifmmode\else\textasciimacron\fis to B-B\ifmmode\else\textasciimacron\fi mixing can be expressed in terms of the measurable ratio fDs/fD with good precision. We comment on applications of these ideas to other processes.