====== TTP18-042 Impact of polarization observables and $B_c\to \tau \nu$ on new physics explanations of the $b\to c \tau \nu$ anomaly ====== ^ TTP18-042 Impact of polarization observables and $B_c\to \tau \nu$ on new physics explanations of the $b\to c \tau \nu$ anomaly ^ |** Monika Blanke, Andreas Crivellin, Stefan de Boer, Teppei Kitahara, Marta Moscati, Ulrich Nierste, Ivan Nisandzic ** | |**Phys.Rev. D99 (2019) no.7, 075006**| | {{preprints:2018:ttp18-042.pdf|PDF}} [[http://arxiv.org/abs/1811.09603|arXiv]] | | |