Combined relativistic and static analysis for all ΔB = 2 operators

2001/10/23 by D. Becirevic, Damir Bečirević, V. Gimenez +5 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph

paper · pdf · doi:10.1016/s0920-5632(01)01722-4

published as Nucl.Phys.Proc.Suppl. 106 (2002) 385-387 · 3 pages, 1 figure. Lattice2001(heavyquark)

arxiv created 2001/10/23 · openalex publication_date 2002/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We analyse matrix elements of Delta B=2 operators by combining QCD results with the ones obtained in the static limit of HQET. The matching of all the QCD operators to HQET is made at NLO order. To do that we have to include the anomalous dimension matrix up to two loops, both in QCD and HQET, and the one loop matching for all the Delta B=2 operators. The matrix elements of these operators are relevant for the prediction of the B- B mixing, B_s meson width difference and supersymmetric effects in Delta B=2 transitions.

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