Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

D-meson semileptonic decays with highly improved staggered quarks

Aug 10, 2022, 4:50 PM
CP1-HSZ/1st-1.002 - HS6 (CP1-HSZ)

CP1-HSZ/1st-1.002 - HS6


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


William Jay (Massachusetts Institute of Technology)


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.

Primary author

William Jay (Massachusetts Institute of Technology)


James Simone (Fermilab) Carleton DeTar (University of Utah) Aida El-Khadra (University of Illinois at Urbana-Champaign) Steven Gottlieb (Indiana University) Elvira Gámiz (University of Granada) Andreas Kronfeld (Fermilab) Andrew Lytle (University of Illinois at Urbana-Champaign) Alejandro Vaquero Avilés-Casco (University of Utah)

Presentation materials