Towards an amplitude analysis of the decay ${\Lambda }_b^0\to p{K}^{-}\gamma$

Johannes Albrecht, Yasmine Amhis, Anja Beck +1

The helicity formalism applied to the radiative decay ${\Lambda }_b^0\to p{K}^{-}\gamma$ is presented for the first time in this paper. The aim is to provide the necessary formalism to be able to re…