The 39th International Symposium on Lattice Field Theory (Lattice 2022)

D-meson semileptonic decays with highly improved staggered quarks

10 Aug 2022, 16:50

20m

CP1-HSZ/1.002 (CP1-HSZ) - HS6 (CP1-HSZ)

Oral Presentation Weak Decays and Matrix Elements Weak Decays and Matrix Elements

Speaker

William Jay (Massachusetts Institute of Technology)

Description

We present new results on semileptonic decays of D-mesons using the highly improved staggered quark (HISQ) action for both valence and 2+1+1 sea quarks. Our calculation uses lattice spacings ranging from 0.12 fm down to 0.042 fm, including several ensembles with physical-mass pions. The focus on the talk will be on the vector and scalar form factors ($f_{+}$ and $f_0$) for the decays $D\to \pi$, $D\to K$ and $D_s\to K$. Phenomenological applications will be discussed.

Presentation materials

wjay_lattice2022.pdf