• Effect of heavy quark symmetry on the mass difference ofB-system in minimal left right symmetric model

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      https://www.ias.ac.in/article/fulltext/pram/046/01/0041-0050

    • Keywords

       

      Left right symmetry; gauge bosons

    • Abstract

       

      An estimation of the mass difference of$$B_d^0 - \bar B_d^0 $$ system with heavy quark symmetry formalism is presented. The effective Hamiltonian describing the transition$$\bar hd \leftrightarrow h\bar d$$ (whereh=b forBd0-system) is considered in a manifest left right symmetric (MLRS) model along with contribution from neutral Higgs boson. We use the spin and flavor symmetry for heavy quarks to obtain the transition matrix element 〈Bd0|ℋeff(x)|$$\bar B_d^0 $$d0〉 in terms of Isgur-Wise function. Assuming thatBd0 and$$\bar B_d^0 $$ states are at rest, we find that Isgur-Wise function turns out to be unity. However using the experimental values of ΔMK and$$\Delta M_{B_4 } $$ as input, we find thatMR=835 GeV andMH⩾2·9 TeV.

    • Author Affiliations

       

      A K Giri1 L Maharana1 R Mohanta1

      1. Physics Department, Utkal University, Bhubaneswar - 751 004, India
    • Dates

       
  • Pramana – Journal of Physics | News

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