6533b7dbfe1ef96bd12701f9

RESEARCH PRODUCT

B parameters of the complete set of matrix elements of delta B = 2 operators from the lattice

G. MartinelliV. GimenezM. PapinuttoD. BecirevicJ. Reyes

subject

Nuclear and High Energy PhysicsParticle physicsMesonHigh Energy Physics::LatticeSTANDARD MODELExtrapolationLattice (group)FOS: Physical sciencesQuenched approximationHigh Energy Physics - ExperimentSettore FIS/04 - Fisica Nucleare e SubnucleareRenormalizationMatrix (mathematics)High Energy Physics - Experiment (hep-ex)High Energy Physics - LatticeHigh Energy Physics - Phenomenology (hep-ph)Quantum chromodynamicsPhysicsNONPERTURBATIVE RENORMALIZATIONBasis (linear algebra)High Energy Physics - Lattice (hep-lat)High Energy Physics::PhenomenologyFísicaHigh Energy Physics - PhenomenologyQUARK MASSHigh Energy Physics::ExperimentHEAVY QUARKS

description

We compute on the lattice the ``bag'' parameters of the five (Delta B = 2) operators of the supersymmetric basis, by combining their values determined in full QCD and in the static limit of HQET. The extrapolation of the QCD results from the accessible heavy-light meson masses to the B-meson mass is constrained by the static result. The matching of the corresponding results in HQET and in QCD is for the first time made at NLO accuracy in the MSbar(NDR) renormalization scheme. All results are obtained in the quenched approximation.

yearjournalcountryeditionlanguage
2001-10-15
10.1088/1126-6708/2002/04/025http://hdl.handle.net/10550/38983