Motivated by the first observation of Λb→Λcτνˉ by LHCb, we discuss various observables that can be derived from angular distribution of this decay which, if measured, could be essential for explanation of the b→cτνˉ anomalies. Furthermore, we show that the measurement of RΛc=B(Λb→Λcτνˉ)/B(Λb→Λcμνˉ) does not change the current global picture arising from RD and RD∗ being larger than predicted in the Standard Model. Finally, we show the example of a few angular observables, with and without a secondary decay, that could have a strong discriminating power on New Physics.
@article{arxiv.2210.12071,
title = {Charged Current Anomalies with Baryons},
author = {Damir Becirevic and Florentin Jaffredo},
journal= {arXiv preprint arXiv:2210.12071},
year = {2022}
}
Comments
6 pages, 4 figures, contribution to the 2022 EW session of the 56th Rencontres de Moriond. Based on arXiv:2209.13409