I will provide an update on HPQCD second-generation B-physics calculations using improved NRQCD b quarks and HISQ light quarks on the MILC n_f=2+1+1 gauge configurations. The configurations include the effect of HISQ sea quarks with a range of light quark masses going down to the physical point for a range of lattice spacing values. Results include B and Bs mixing matrix elements and tests of a new approach to B decay constants and semileptonic form factors.

Weak Decays and Matrix Elements