EFFECT OF HEAVY-QUARK SYMMETRY ON THE MASS DIFFERENCE OF B-SYSTEM IN MINIMAL LEFT-RIGHT-SYMMETRICAL MODEL

An estimation of the mass difference of B-d(O) - (B) over bar(d)(O) sy stem with heavy quark symmetry formalism is presented. The effective H amiltonian describing the transition (h) over bar d<->h (d) over bar ( where h = b for B-d(O)-system) is considered in a manifest left right symmetric (MLRS) model along with contribution from neutral Higgs boso n. We use the spin and flavor symmetry for heavy quarks to obtain the transition matrix element [B-d(O)\H-eff(x)\(B) over bar B-d(O)] in ter ms of Isgur-Wise function. Assuming that B-d(O) and (B) over bar(d)(O) states are at rest, we find that Isgur-Wise function turns out to be unity. However using the experimental values of Delta M(K) and Delta M (Bd) as input, we find that M(R) = 835 GeV and M(H) greater than or eq ual to 2 . 9 TeV.