32nd International Symposium on Lattice Field Theory (Lattice 2014)

The Kaon Semileptonic Form Factor from Domain Wall QCD at the Physical Point

23 Jun 2014, 18:10

20m

140 Uris

Talk Weak Decays and Matrix Elements Weak Decays and Matrix Elements

Speaker

Mr David Murphy (Columbia University)

Description

We present an update on the RBC/UKQCD collaboration’s calculation of the kaon semileptonic form factor at zero momentum transfer, $f_{+}^{K\pi }(0)$. This calculation utilizes two new $N_f=2+1$ M\"{o}bius Domain Wall Fermion ensembles which allow us to simulate QCD directly at physical pion mass for the first time. Together with our previous results we now have a complete set of measurements extending from the $SU(3)$ symmetric limit down to the physical point, allowing us to minimize systematic error associated with the chiral extrapolation.

Presentation materials

Slides

Murphy.pdf