New Possibility of Solving the Problem of the Lifetime Ratio ( b ) / (Bd)

T. Ito, M. Matsuda, Y. Matsui
1998 Progress of theoretical physics  
We discuss the problem of the large discrepancy between the observed lifetime ratio of Λ_b to B_d and the theoretical prediction obtained by the heavy quark effective theory. A new possibility of solving this problem is proposed from the viewpoint of operator product expansion and the lifetime ratio of Ω_b to B_d is predicted.
doi:10.1143/ptp.99.271 fatcat:skvkqmavdneq7nlhfwd5e7leue