GENERAL CHARACTERISTICS OF B_c-MESONS: PRODUCTION MECHANISMS AND DECAYS

Using Martin’s potential, independently of b- and c-quark flavours, we calculate the mass spectrum of -mesons and widths of electromagnetic transition between them. We obtain the estimates of the production cross-section at e⁺e⁻ colliders, in hadronic and neutrino interactions. A real possibility of observing B_c-mesons at LEP (up to 500 B_c per 10⁶ Z⁰) and at hadron colliders has been pointed out. The importance of observing the annihilation decay channels of B_c-mesons—B_c→τν_τ(Br(B_c→τν_τ)=1.5–2%) and B_c→ϕD_s, DK, etc.—has been emphasized.