1999/03/31 by Monika Randhawa, V. Bhatnagar, P. S. Gill +1 · 3 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.60.051301
published as Phys.Rev.D60:051301,1999 · 12 pages, LaTeX,some changes in the references,minor changes in the text,to appear in Phys Rev D(Rapid communications)
arxiv created 1999/06/30 · openalex publication_date 1999/07/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Texture specific quark mass matrices which are Hermitian and hierarchical are examined in detail. In the case of texture 6 zero matrices, out of sixteen possibilities examined by us, none is able to fit the low energy data (LED), for example, |Vus|=0.2196\ifmmode±\else\textpm\fi0.0023, |Vcb|=0.0395\ifmmode±\else\textpm\fi0.0017, |Vub/Vcb|=0.08\ifmmode±\else\textpm\fi0.02, and |Vtd| lies in the range 0.004--0.014 (PDG). Similarly none of the 32 texture 5 zero mass matrices considered is able to reproduce the LED. In particular, the latest data from CERN LEP regarding |Vub/Vcb|=(0.093\ifmmode±\else\textpm\fi0.016) rules out all of them. In the texture 4 zero case, we find that there is a unique texture structure for U and D mass matrices which is able to fit the data.