id author title date pages extension mime words sentences flesch summary cache txt work_lnyoynzmgjednmqhtapadfkgru M. Neubert Spectator effects in inclusive decays of beauty hadrons 1997 34 .pdf application/pdf 12168 1616 78 conclusions is that only a detailed field-theoretic calculation of the relevant matrix elements can lead to reliable predictions. relevant four-quark operator matrix elements between B-meson and Λb-baryon non-perturbative contributions of order ΛQCD/mb not present in the heavy-quark For the case of semileptonic and non-leptonic decays, the effective weak Lagrangian, renormalized at the scale µ = mb, is To order 1/m2b in the heavy-quark expansion, the lifetime ratio for two beauty spectator effects contribute at third order in the heavy-quark expansion. For matrix elements of the four-quark operators between B-meson states, we in the matrix elements of the four-quark operators describing the spectator contributions, we estimate that the resulting contributions to the lifetime ratio are discuss below, the theoretical prediction for BSL, which neglects spectator contributions, is slightly larger than the central experimental value. 1/m2b in the heavy-quark expansion, we now investigate the spectator contributions to the semileptonic branching ratio and nc. ./cache/work_lnyoynzmgjednmqhtapadfkgru.pdf ./txt/work_lnyoynzmgjednmqhtapadfkgru.txt