Accumulating Evidence for Nonstandard Leptonic Decays of $D_{s}$ Mesons

Open Access

17 June 2008

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 100 (24) , 241802
https://doi.org/10.1103/physrevlett.100.241802

Abstract

The measured rate for

D_{s}^{+} \to ℓ^{+} ν

decays, where

ℓ

is a muon or tau, is larger than the standard model prediction, which relies on lattice QCD, at the

3.8 σ

level. We discuss how robust the theoretical prediction is, and we show that the discrepancy with experiment may be explained by a charged Higgs boson or a leptoquark.

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This publication has 21 references indexed in Scilit:

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Physical Review Letters, 2008
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Accumulating Evidence for Nonstandard Leptonic Decays ofDsMesons

Abstract

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Accumulating Evidence for Nonstandard Leptonic Decays of $D_{s}$ Mesons