Speaker
Oliver Witzel
(University of Edinburgh)
Description
B-physics is the most promising window to find new physics in the flavor sector. One key
ingredient to these searches are precise theoretical predictions derived from the Standard
Model. Focusing at the nonperturbative QCD contributions, we carry out lattice QCD
simulations in order to calculate B-meson decay constants and semi-leptonic form factors.
Combined with experimental measurements our results enable us to determine CKM matrix
elements.
Here we present B and Bs meson decay constants as well as semi leptonic form factors
including rare decays, CKM or GIM suppressed in the Standard Model. Our results are
based on the set of 2+1 flavor domain-wall Iwasaki gauge field configurations generated by
the RBC-UKQCD collaboration. Heavy b-quarks are simulated using the relativistic heavy
quark action.
Author
Oliver Witzel
(University of Edinburgh)
