6533b81ffe1ef96bd1277bd4
RESEARCH PRODUCT
B-physics computations from Nf=2 tmQCD
N. CarrascoCecilia TarantinoLuca SilvestriniChris MichaelV. GimenezRoberto FrezzottiF SanfilippoPetros DimopoulosMarco CiuchiniSilvano SimulaGregorio HerdoizaV. LubiczE. PiccaG. C. RossiAndrea Shindlersubject
QuarkTop quarkParticle physicsHigh Energy Physics::LatticeNuclear TheoryLattice field theoryFOS: Physical sciencesDown quark01 natural sciencesBottom quarkB physicsNuclear physicsHigh Energy Physics - LatticePion0103 physical sciences010303 astronomy & astrophysicsPhysics010308 nuclear & particles physicslattice gauge theoriesHigh Energy Physics - Lattice (hep-lat)High Energy Physics::PhenomenologyParticle Physics - LatticeLattice QCDSettore FIS/02 - Fisica Teorica Modelli e Metodi MatematiciB physics; lattice gauge theoriesUp quarkHigh Energy Physics::Experimentdescription
We present an accurate lattice QCD computation of the b-quark mass, the B and Bs decay constants, the B-mixing bag-parameters for the full four-fermion operator basis, as well as estimates for \xi and f_{Bq}\sqrt{B_q} extrapolated to the continuum limit and the physical pion mass. We have used Nf = 2 dynamical quark gauge configurations at four values of the lattice spacing generated by ETMC. Extrapolation in the heavy quark mass from the charm to the bottom quark region has been carried out using ratios of physical quantities computed at nearby quark masses, having an exactly known infinite mass limit.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-10-07 | PoS(LATTICE 2013)382 |