Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1997-09-22
Nucl.Phys.Proc.Suppl. 63 (1998) 371-373
Physics
High Energy Physics
High Energy Physics - Lattice
3 pages, 2 figures, talk given at Lattice 97, Edinburgh
Scientific paper
10.1016/S0920-5632(97)00773-1
The B-$\bar B$ mixing, B-meson lifetimes, the $B_{s}$-$\bar{B}_{s}$ lifetime difference and SUSY FCNC effects in $\Delta B=2$ processes are very important measurable quantities in B-meson phenomenology whose theoretical predictions depend on unknown matrix elements of several four-fermion operators. We present preliminary results for the matrix elements of the relevant four-fermion operators computed on a sample of 600 lattices of size $24^3\times 40$ at $\beta=6.0$, using the SW--Clover action for light quarks with rotated light quark propagators and the lattice version of the HQET for heavy quarks. As a necessary ingredient of the calculation, we also present results for the next-to-leading order matching of the full theory to the lattice HQET (one- and two-loop anomalous dimensions, one-loop QCD-HQET matching coefficients and one-loop continuum-lattice HQET matching coefficients).
No associations
LandOfFree
Matrix elements of four-fermion operators in the HQET does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Matrix elements of four-fermion operators in the HQET, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Matrix elements of four-fermion operators in the HQET will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-504481