1999/06/10 by Alexander Lenz, Lenz, Alexander
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9906317
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)
arxiv created 1999/06/10 · openalex publication_date 1999/06/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this talk we present a calculation of the dacay rate difference in the neutral Bs-Bs system, ΔΓBs, in next-to-leading order (NLO) QCD. We find a sizeable decrease compared to leading-order (LO) estimates: (ΔΓ/Γ)Bs = (fBs/210 MeV)2 [0.006 B(mb) + 0.150 BS(mb) - 0.0063] in terms of the bag parameters B and BS in the NDR scheme. We put special emphasize on the theoretical and physical implications of this quantity.