Multiplicity, transverse momentum, forward-backward long range correlations and percolation of strings
Carlos Pajares, L. Cunqueiro, E. G. Ferreiro · 2007
The behaviour of the normalized variance of the multiplictiy distribution and the normalized transverse momentum fluctuations with centrality is natura lly explained by the dependence on centrality of the number of clusters of color sources. This d ependence predicts a nonmonotonic behaviour with centrality of the multiplicity associated t o high pT events. The clustering of color sources is also able to reproduce the increase with centrali ty of the forward-backward long-range correlations and its supression compared to superposition model predictions.