Methods for high-precision determinations of radiative-leptonic decay form factors using lattice QCD

URN to cite this document:: urn:nbn:de:bvb:355-epub-554522
DOI to cite this document:: 10.5283/epub.55452

Giusti, Davide

; Kane, Christopher F.

; Lehner, Christoph ; Meinel, Stefan

; Soni, Amarjit

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Date of publication of this fulltext: 09 Feb 2024 06:14

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Abstract

We present a study of lattice-QCD methods to determine the relevant hadronic form factors for radiative-leptonic decays of pseudoscalar mesons. We provide numerical results for D+s→ℓ+νγ. Our calculation is performed using a domain-wall action for all quark flavors and on a single RBC/UKQCD lattice gauge-field ensemble. The first part of the study is how to best control two sources of systematic ...