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On the ultimate precision of meson mixing observables.

Jubb, Thomas and Kirk, Matthew and Lenz, Alexander (2017) 'On the ultimate precision of meson mixing observables.', Nuclear physics B., 915 . pp. 431-453.


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.

Item Type:Article
Full text:(AM) Accepted Manuscript
Available under License - Creative Commons Attribution.
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Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
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Publisher statement:Crown Copyright © 2016 Published by Elsevier B.V. This is an open access article under the CC BY license ( Funded by SCOAP3.
Date accepted:25 December 2016
Date deposited:21 February 2017
Date of first online publication:29 December 2016
Date first made open access:No date available

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