On the semileptonic decay distributions from the next heavy quark.

Motivated by the discovery of λ(9.4), we study the semileptonic decay correlations of the next heavy quark, and their consequences for the e e colliding beam and neutrino experiments. A detailed comparison is made with the corresponding correlations from the production and decay of charm and heavy leptons, τ. Some tests of the $${\rm B}^0 - \bar {\rm B}^0 $$ mixing ( $$B = b\bar q$$ with baQ=−1/3 heavy quark) are suggested for e e colliding beam experiments. [ABSTRACT FROM AUTHOR]