4-7 August 2020
Asia/Tokyo timezone

$B_{(s)}-\bar{B}_{(s)}$ mixing on domain-wall lattices

5 Aug 2020, 15:00


Weak Decays and Matrix Elements Weak Decays and Matrix Elements


Felix Erben (*) (University of Edinburgh)


We are presenting our ongoing Lattice QCD study on $B-\bar{B}$ mixing. Comparing a variety of different methods, we are extracting bag parameters $B_{B_{s}}$ and $B_{B_{d}}$ on several RBC/UKQCD and JLQCD ensembles with 2+1 dynamical-flavour domain wall fermions, including physical-pion-mass ensembles. We are simulating a range of heavy quark masses on each ensemble from below the charm quark mass towards (but still below) the bottom quark mass. The plan for this study is to perform a full continuum limit allowing us to get an independent determination of the CKM matrix elements $|V_{ts}|$ and $|V{td}|$, which will help to test whether the CKM matrix is indeed unitary.

Primary author

Felix Erben (*) (University of Edinburgh)


Presentation Materials