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We report on the status of an ALPHA Collaboration project to extractquantities for B physics phenomenology from Nf=2 lattice simulations. Theframework is Heavy Quark Effective Theory (HQET) expanded up to the first orderof the inverse b-quark mass. The couplings of the effective theory aredetermined by imposing matching conditions of observables computed in HQET withtheir counterpart computed in QCD. That program, based on Nf=2 simulations in asmall physical volume with SF boundary conditions, is now almost finished. Onthe other side the analysis of configurations selected from the CLS ensembles,in order to measure HQET hadronic matrix elements, has just started recently sothat only results obtained at a single lattice spacing, a=0.07 fm, will bediscussed. We give our first results for the b-quark mass and for the B mesondecay constant.

B meson spectrum and decay constant from Nf=2 simulations