Semileptonic D-decays and Lattice QCD

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We explore four different strategies to extract the D-meson semileptonic decay form factors from the Green functions computed in QCD numerically on the lattice. From our numerical tests we find that two such strategies, based on the use of double ratios of 3-point correlation functions, lead to an appreciable reduction of systematic uncertainties. This is an important step in reducing the overall uncertainty in the lattice QCD results for the D-decay form factors which are needed to determine the CKM entries |Vcd| and |Vcs| experimentally, that are nowadays known by imposing the unitarity of the CKM matrix.
7pages, proceedings write-up for Lattice 2007

Keywords

High Energy Physics - Lattice, High Energy Physics - Phenomenology

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/199384

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0710.1741
 http://arxiv.org/abs/0710.1741
 PoSLAT2007:355,2007

Collections

arXiv