Lifetime of the $B^+_c$ meson in relation to flavour anomalies
B. Grinstein* and J. Aebischer
Pre-published on:
March 27, 2023
Published on:
June 21, 2023
Abstract
The Standard Model decay rate of the $B_c$ meson is
discussed together with a novel approach that uses experimental data in combination with an operator product expansion. In the new method differences of $B,\,D$ and $B_c$ meson decay rates are considered for which the free-quark contributions drop out, leading to a reduction of the theory prediction.
DOI: https://doi.org/10.22323/1.422.0066
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