# Model-independent bounds on new physics effects in non-leptonic tree-level decays of B-mesons

@article{Lenz2020ModelindependentBO, title={Model-independent bounds on new physics effects in non-leptonic tree-level decays of B-mesons}, author={Alexander Lenz and Gilberto Tetlalmatzi-Xolocotzi}, journal={Journal of High Energy Physics}, year={2020} }

Abstract
We present a considerably improved analysis of model-independent bounds on new physics effects in non-leptonic tree-level decays of B-mesons. Our main finding is that contributions of about ±0.1 to the Wilson coefficient of the colour-singlet operator Q2 of the effective weak Hamiltonian and contributions in the range of ±0.5 (both for real and imaginary part) to Q1 can currently not be excluded at the 90% C.L. . Effects of such a size can modify the direct experimental extraction of…

## 44 Citations

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We give a comprehensive account of the flavour physics of Beyond-Standard-Model (BSM) effects in b → c$$ \overline{c} $$
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