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On the ultimate precision of meson mixing observables

Jubb, Thomas; Kirk, Matthew; Lenz, Alexander

On the ultimate precision of meson mixing observables Thumbnail


Thomas Jubb

Matthew Kirk

Alexander Lenz


Meson mixing is considered to be an ideal testing ground for new physics searches. Experimental precision has greatly increased over the recent years, exceeding in several cases the theoretical precision. A possible limit in the theoretical accuracy could be a hypothetical breakdown of quark–hadron duality. We propose a simple model for duality violations and give stringent phenomenological bounds on its effects on mixing observables, indicating regions where future measurements of ΔΓd, View the MathML source and View the MathML source would give clear signals of new physics. Finally, we turn our attention to the charm sector, and reveal that a modest duality violation of about 20% could explain the huge difference between HQE predictions for D mixing and experimental data.


Jubb, T., Kirk, M., & Lenz, A. (2017). On the ultimate precision of meson mixing observables. Nuclear Physics B, 915, 431-453.

Journal Article Type Article
Acceptance Date Dec 25, 2016
Online Publication Date Dec 29, 2016
Publication Date Feb 1, 2017
Deposit Date Feb 20, 2017
Publicly Available Date Feb 21, 2017
Journal Nuclear Physics B
Print ISSN 0550-3213
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 915
Pages 431-453


Accepted Journal Article (1.9 Mb)

Publisher Licence URL

Copyright Statement
Crown Copyright © 2016 Published by Elsevier B.V. This is an open access article under the CC BY<br /> license ( Funded by SCOAP3.

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