Transverse momentum fluctuations and percolation of strings

Details Transverse momentum fluctuations and percolation of strings Transverse momentum fluctuations and percolation of strings

2003-03-17

arxiv.org/abs/hep-ph/0303137v2

Phys.Rev. C69 (2004) 034901

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, RevTex, 4 postscript figures. Enhanced version. New figures

Scientific paper

10.1103/PhysRevC.69.034901

The behaviour of the transverse momentum fluctuations with the centrality of the collision shown by the Relativistic Heavy Ion Collider data is naturally explained by the clustering of color sources. In this framework, elementary color sources --strings-- overlap forming clusters, so the number of effective sources is modified. These clusters decay into particles with mean transverse momentum that depends on the number of elementary sources that conform each cluster, and the area occupied by the cluster. The transverse momentum fluctuations in this approach correspond to the fluctuations of the transverse momentum of these clusters, and they behave essentially as the number of effective sources.

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