Lepton flavour violation in rare Lambda(b) decays

M. Bordone, M. Rahimi*, K.K. Vos

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


Lepton flavour violation (LFV) naturally occurs in many new physics models, specifically in those explaining the B anomalies. While LFV has already been studied for mesonic decays, it is important to consider also baryonic decays mediated by the same quark transition. In this paper, we study LFV in the baryonic Lambda(b) -> Lambda l(1)l(2) using for the first time a full basis of New Physics operators. We present expected bounds on the branching ratio in a model-independent framework and using two specific new physics models. Finally, we point out the interplay and orthogonality between the baryonic and mesonic LFV searches.
Original languageEnglish
Article number756
Number of pages14
JournalEuropean Physical Journal C
Issue number8
Publication statusPublished - 1 Aug 2021




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