PoS - Proceedings of Science
Volume 332 - XIV International Conference on Heavy Quarks and Leptons (HQL2018) - CKM Matrix and Semileptonic Decays
Theory on $B \to D^{(*)} \tau \nu$ anomaly
M. Tanaka* and R. Watanabe
Full text: pdf
Pre-published on: December 05, 2018
Published on: December 11, 2018
The observed excess in $\bar B\to D^{(*)}\tau\bar\nu$ is one of the major anomalies in particle physics. After a short summary of experimental results and standard model predictions, we introduce a model-independent approach using an effective field theory in order to identify possible new physics scenarios. The allowed regions of Wilson coefficients are obtained with the most recent experimental data. We also discuss other observables, $q^2$ distributions and a tau polarization. We briefly mention future prospects of experiments.
DOI: https://doi.org/10.22323/1.332.0009
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