Multiplicity distribution and source deformation in full-overlap U+U collisions

Abstract

We present a full Monte Carlo simulation of the multiplicity and eccentricity distributions in U+U collisions at sqrt(s) = 200 A GeV. While unavoidable trigger inefficiencies in selecting full-overlap U+U collisions cause significant modifications of the multiplicity distribution shown in PRL94, 132301 (2005), a selection of source eccentricities by cutting the multiplicity distribution is still possible.

4 pages. Corrected error in Eq. (4), recalculated Figs. 2-4 and added Fig. 5 and more discussion. As a result of correcting this error, the spectator cut for a useful definition of "full-overlap" collisions had to be tightened by a factor 10, to the 0.5% of events with the lowest number of spectators

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