Angular distribution and rotations of frame in vector meson decays into lepton pairs

Sandro Palestini

Published 2010-12-11Version 1

We discuss how the angular distribution of lepton pairs from decays of vector mesons depends on the choice of reference frame, and provide a geometrical description of the transformations of the coefficients of the angular distribution. Invariant expressions involving all coefficients are discussed, together with bounds and consistency relations.