Identification of neutral B mesons using correlated hadrons

The identification of the flavor of a neutral B meson can make use of hadrons produced nearby in phase space. Examples include the decay of ''B**'' resonances or the production of hadrons as a result of the fragmentation process. Some aspects of this method are discussed, including time-dependent effects in neutral B decays to flavor states, to eigenstates of CP and to other states, and the effects of possible coherence between B0 and bar B 0 in the initial state. We study the behavior of the leading hadrons in b-quark jets and the expected properties of B** resonances. These are extrapolated from the corresponding D** resonances, of whose properties we suggest further studies