On the Influence of Momentum Conservation upon the Scaling Behaviour of   Factorial Moments in High Energy Multiparticle Production
  The experimental results on the falling down of scaled factorial moments in azimuthal variable $\phi$ is studied in some detail. It is shown that this phenomenon may be referred to the influence of transverse momentum conservation. The existing experimental data from DELPHI, EMU08, NA22 and UA1 are successfully explained. Various methods are proposed to partly eliminate this influence and rule out the 'falling down' of factorial moments. 
Liu Lianshou, Zhang Yang, Deng Yue