Event shape analysis in ultrarelativistic nuclear collisions
  We present a novel method for sorting events. So far, single variables like flow vector magnitude were used for sorting events. Our approach takes into account the whole azimuthal angle distribution rather than a single variable. This method allows us to determine the good measure of the event shape, providing a multiplicity-independent insight. We discuss the advantages and disadvantages of this approach, the possible usage in femtoscopy, and other more exclusive experimental studies. 
Renata Kopecna and Boris Tomasik
nucl-th hep-ph nucl-ex