Momentum asymmetries as CP violating observables

Joshua Berger, Monika Blanke, Yuval Grossman, Shamayita Ray

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Three body decays can exhibit CP violation that arises from interfering diagrams with different orderings of the final state particles. We construct several momentum asymmetry observables that are accessible in a hadron collider environment where some of the final state particles are not reconstructed and not all the kinematic information can be extracted. We discuss the complications that arise from the different possible production mechanisms of the decaying particle. Examples involving heavy neutralino decays in supersymmetric theories and heavy Majorana neutrino decays in Type-I seesaw models are examined.

Original languageEnglish
Article number181
JournalJournal of High Energy Physics
Issue number10
StatePublished - 2012
Externally publishedYes


  • Beyond standard model
  • CP violation


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