Inclusive semileptonic decays from lattice QCD: Analysis of systematic effects
Year: 2025
Type: article
Abstract: Lattice QCD calculations of inclusive semileptonic decay rates involve new types of systematic effects, such as truncation errors in the estimation of energy integrals, or finite-volume effects for multibody final states. We investigate them for the lattice data of D s → X s ℓ ν decays, obtained using Möbius domain-wall fermions. Separating the ground-state and excited-state contributions results in better control over these systematic effects. With the Chebyshev polynomial approximation, the truncation error is under control, while the finite-volume effects are estimated using a model to describe two-body final states.
DOI: 10.1103/kltp-1p1f
Authors: Ryan Kellermann, Zhi Hu, Alessandro Barone, Ahmed Elgaziari, Shoji Hashimoto, Takashi Kaneko, Andreas Jüttner
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Awards: Nonperturbative computation of B meson inclusive decays using lattice Quantum Chromodynamics, Precision lattice QCD simulations of B meson semileptonic decays towards search of new physics, G794863880, Exploration of the particle physics frontier at the Super B-factory and cultivation o f young researchers, Direct lattice QCD simulation of bottom quarks towards search for new physics
OpenAlex ID: W4410770735