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 B0 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.Comment: To be submitted to Phys. Rev. D. 26 pages, LaTeX, figures not
included (available upon request). Technion-PH-93-32 / EFI 93-4