FCNC $B_s$ and ${\Lambda }_b$ transitions: Standard Model versus a single Universal Extra Dimension scenario

P. Colangelo, F. De Fazio, R. Ferrandes +1

We study the FCNC $B_s\to \varphi \gamma ,\varphi \nu \bar{\nu }$ and ${\Lambda }_b\to \Lambda \gamma ,\Lambda \nu \bar{\nu }$ transitions in the Standard Model and in a scenario with a single Universal Extra Dimension. In particular, we f…