Speaker
Ryan Kellermann
(High Energy Accelerator Research Organization (KEK))
Description
We report on the nonperturbative calculation of the inclusive decay rate for semileptonic decays of the $D_s$ meson from lattice QCD. In this talk we address systematic effects associated with the analysis. Namely, we focus on the systematic errors introduced by the finite polynomial order in the Chebyshev approximation used in the analysis and the error due to finite-volume effects. The former is estimated by a combination of the required limits and employing properties of the Chebyshev polynomials, while the latter is estimated by formulating a model under the assumption of two-body final states which is combined with the lattice data to extrapolate the infinite volume limit.
Primary author
Ryan Kellermann
(High Energy Accelerator Research Organization (KEK))
Co-authors
Ahmed Elgaziari
(University of Southampton)
Dr
Alessandro Barone
(Johannes Gutenberg University Mainz)
Andreas Juettner
(University of Southampton)
Shoji Hashimoto
(KEK)
Takashi Kaneko
(KEK)
Zhi HU
(High Energy Accelerator Research Organization (KEK))
