A new ansatz: Fritzsch mass matrices with least modification Academic Article uri icon


  • We investigate how the Fritzsch ansatz for the quark mass matrices can be modified in the least possible way to accommodate the observed large top quark mass and the measured values of the CKM elements. As one of the solutions, we find that the {23} and the {32} elements of the up quark mass matrix are unequal. The rest of the assumptions are the same as in the Fritzsch ansatz. In this formalism we have an extra parameter i.e. the ratio of the {23} and the {32} element, which gets fixed by the large top quark mass. The predicted values for Vub/Vcb, Vtd/Vts from this new ansatz are in the correct experimental range even for the smaller values of tan β. In the end, we write down the SO(10) motivated superpotential for these new mass matrices.

published proceedings

  • Physics Letters B

author list (cited authors)

  • Dutta, B., & Nandi, S

citation count

  • 4

complete list of authors

  • Dutta, B||Nandi, S

publication date

  • January 1996