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8–13 Aug 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

D-meson semileptonic decays with highly improved staggered quarks

10 Aug 2022, 16:50
20m
CP1-HSZ/1.002 (CP1-HSZ) - HS6 (CP1-HSZ)

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

CP1-HSZ

50
Show room on map
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.

Primary author

William Jay (Massachusetts Institute of Technology)

Co-authors

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