τ_Bc in the Standard Model

2022/03/30 by Aebischer, Jason, Grinstein, Benjamín
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2203.16196

Abstract

The Standard Model prediction of the B_c lifetime is discussed, together with the dominant uncertainties and strategies on how to improve them. Furthermore, a new method to compute the B_c lifetime based on the operator product expansion is proposed. It relies on differences of B, D and B_c meson decay rates, in which the free-quark contributions cancel out, reducing the uncertainty of the theory prediction.

Related

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• The B_c decay rate in the Standard Model
• Lifetime of the B⁺_c meson in relation to flavour anomalies
• Exclusive Decays and Lifetime of B_c Meson in QCD sum rules