Mixing and lifetimes of $b-$hadrons

Lenz, Alexander J.

Abstract

We review the status of mixing and lifetimes of b‐hadrons. We will show that ΔΓ/ΔM, asl and φ are better suited to search for new physics effects than ΔM alone, because of our poor knowledge of the decay constants. The theoretical precision in the determination of Γ12/M12 —which contains all information on ΔΓ/ΔM, asl and φ—can be tested directly by investigating the lifetimes of b‐hadrons, because both quantities rely on the same theoretical footing. In particular we will also present a numerical estimate for the lifetime of the Ξb ‐baryon.

Citation

Lenz, A. J. (2008). Mixing and lifetimes of $b-$hadrons. . https://doi.org/10.1063/1.2965074

• Publication Date: Jul 2, 2008
• Deposit Date: Mar 15, 2013
• Publicly Available Date: Mar 18, 2015
• Volume: 1026
• Pages: 36-47
• Series ISSN: 0094-243X,1551-7616
• DOI: https://doi.org/10.1063/1.2965074
• Publisher URL: http://arxiv.org/abs/arXiv:0802.0977