Title of article
A precise determination of the decay constant of the Ds-meson in quenched QCD
Author/Authors
ALPHA Collaboration، نويسنده , , Andreas Jüttner، نويسنده , , Juri Rolf، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
5
From page
59
To page
63
Abstract
We present a lattice determination of the leptonic decay constant FDs of the Ds-meson using its mass and FK as experimental input. Setting the scale with FK=160 MeV, our final result is FDs=252(9) MeV. The error contains all uncertainties apart from the quenched approximation. Setting the scale with the nucleon mass instead leads to an decrease of 20(1) MeV of the leptonic decay constant.
Keywords
Heavy-light mesons , CKM-matrix , Lattice QCD , Leptonic decay constant
Journal title
PHYSICS LETTERS B
Serial Year
2003
Journal title
PHYSICS LETTERS B
Record number
916785
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