Fluctuations and Transverse Momentum Distributions in the Color Clustering Approach

Details Fluctuations and Transverse Momentum Distributions in the Color Clustering Approach Fluctuations and Transverse Momentum Distributions in the Color Clustering Approach

2008-05-22

arxiv.org/abs/0805.3441v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 7 figures. Contribution to QM2008, to be published in Indian Journal of Physics

Scientific paper

We present our results on transverse momentum fluctuations, multiplicity fluctuations and transverse momentum distributions for baryons and mesons in the framework of the clustering of color sources. We determine under what conditions the initial state configurations can lead to color connection, and more specifically, if variations of the initial state can lead to a transition from disconnected to connected color clusters, modifying the number of effective sources. We find that beyond a critical point, one has a condensate, containing interacting and hence color-connected sources. This point thus specifies the onset of color deconfinement. We show that the transverse momentum and multiplicity distributions are related to each other in a defined way. We obtain a non-monotonic dependence of the $p_T$ and multiplicity fluctuations with the number of participants. We present our results for the fluctuations and the transverse momentum distributions at RHIC energies compared to the existing experimental data and our predictions for LHC energies.

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