Abstract
The helicity formalism applied to the radiative decay \( {\varLambda}_b^0\to {pK}^{-}\gamma \) is presented for the first time in this paper. The aim is to provide the necessary formalism to be able to resolve the resonant pK − structures at the photon pole by means of an amplitude analysis. Experimental effects, such as resolution, are also discussed.
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Albrecht, J., Amhis, Y., Beck, A. et al. Towards an amplitude analysis of the decay \( {\varLambda}_b^0\to {pK}^{-}\gamma \). J. High Energ. Phys. 2020, 116 (2020). https://doi.org/10.1007/JHEP06(2020)116
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DOI: https://doi.org/10.1007/JHEP06(2020)116