Let's consider decay with identical particle, say 2, and 3, (example: Xib2pKK, reference: LHCb)
Using the decayangle, one can keep the convenient consistent numbering when formulating the decay (in constrast to ThreeBodyDecays.jl where circular ordering ((12)3, (23)1, and (31)2 is used.)
Xib2pKK: generate a phase space point in the aligned kinematics
Compare two Lambda-resonance decay topologies: (12)3, and (13)2.
Show that the reaction plane flip, phi=piis happening twice. In the helicity angles, and in Wigner rotations.
Let's consider decay with identical particle, say 2, and 3, (example:
Xib2pKK, reference: LHCb)Using the
decayangle, one can keep the convenient consistent numbering when formulating the decay (in constrast toThreeBodyDecays.jlwhere circular ordering ((12)3, (23)1, and (31)2 is used.)(12)3, and(13)2.phi=piis happening twice. In the helicity angles, and in Wigner rotations.