Next-to-Leading Order QCD corrections to the Lifetime Difference of $B_s$ Mesons
Abstract
Description
In this talk we present a calculation of the dacay rate difference in the neutral $B_s-\bar{B}_s$ system, $ΔΓ_{B_s}$, in next-to-leading order (NLO) QCD. We find a sizeable decrease compared to leading-order (LO) estimates: $ (ΔΓ/Γ)_{B_s} = (f_{B_s}/210 MeV)^2 [0.006 B(m_b) + 0.150 B_S(m_b) - 0.0063]$ in terms of the bag parameters $B$ and $B_S$ in the NDR scheme. We put special emphasize on the theoretical and physical implications of this quantity.
5 pages, uses JHEP.cls (included), talk given at the Corfu Summer Institute on Elementary Particle Physics (South European School on Elementary Particle Physics), 6-26 September 1998, Kerkyra, Greece (to appear in the proceedings)
5 pages, uses JHEP.cls (included), talk given at the Corfu Summer Institute on Elementary Particle Physics (South European School on Elementary Particle Physics), 6-26 September 1998, Kerkyra, Greece (to appear in the proceedings)