Noisy Spherical Resonant Detector of Gravitational Waves: Veto on the   Longitudinal Part of the Signal
  The equations of a resonant sphere in interaction with $N$ secondary radial oscillators (transducers) on its surface have been found in the context of Lagrangian formalism. It has been shown the possibility to exert a veto against spurious events measuring the longitudinal component of a signal. Numerical simulations has been performed, which take into account thermal noise between resonators and the sphere surface, for a particular configuration of the transducers. 
Enrico Montanari (University of Ferrara and INFN sezione di Ferrara,   Italy)