Method for Flavor Tagging in Neutral B Meson Decays
  A method is proposed for tagging the flavor of neutral $B$ mesons in the study of CP-violating decay asymmetries. The method makes use of a possible difference in interactions in $B \pi$ or $B^* \pi$ systems with isospins 1/2 and 3/2, and would be particularly clean if the $I = 1/2$ systems can be detected as ``$B^{**}$'' resonances. 
Michael Gronau (Department of Physics, Technion), Alex Nippe (I.   Physikalisches Institut, RWTH Aachen), and Jonathan L. Ro...