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Theoretical status of the lifetime predictions: (ΔΓ/Γ)Bs, τB+/τBd and τΛb/τBd.

Lenz, Alexander (2001) 'Theoretical status of the lifetime predictions: (ΔΓ/Γ)Bs, τB+/τBd and τΛb/τBd.', in Flavor Physics. Singapore: World Scientific, pp. 291-296. Proceedings of the ICFP2001.


We give a review of the theoretical status of the lifetime predictions in the standard model. In case of (ΔΓ/Γ)Bs we are already in a rather advanced stage. We obtain . It seems to be difficult to improve these errors substantially. In addition now some experimental results are available. For τB+/τBd and τΛb/τBd the theoretical status is much less advanced and the discrepancy between experiment and theory still remains. We conclude with a what-to-do-list for theorists.

Item Type:Book chapter
Full text:(AM) Accepted Manuscript
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Publisher statement:Flavor Physics. Edited by: Yue-Liang Wu. Copyright @ 2002 with permission from World Scientific Publishing Co. Pte. Ltd.
Date accepted:07 December 2015
Date deposited:05 January 2017
Date of first online publication:2001
Date first made open access:No date available

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