ISOSPIN CONSIDERATIONS IN CORRELATIONS OF PIONS AND B-MESONS

The correlations between a B meson and a pion produced nearby in phase space should respect isospin reflection symmetry I3→-I3. Thus, one generally expects similar π+B0 and π-B+ correlations (nonexotic channels), and similar π-B0 and π+B+ correlations (exotic channels). Exceptions include (a) fragmentation processes involving the exchange of quarks with the producing system, (b) misidentification of charged kaons as charged pions, and (c) effects of the decay products of the associated B̄. All of these can affect the apaprent signal for correlations of charged B mesons with charged hadrons. The identification of the flavor of neutral B mesons through the decay B0→K*0J/ψ requires good particle identification in order that the decay K*0→K+π- not be mistaken for K̄*0→K-π+, in which case the correlations of neutral B mesons with hadrons can be underestimated. © 1995 The American Physical Society.