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Figure 4

Transverse momentum ($\pt$) distribution of (a) $\pi$, (b) K, and (c) p as a function of centrality, for positive (circles) and negative (squares) hadrons. Each panel shows central to peripheral data; spectra scaled by factors $2^n$ (peripheral data not scaled). Dashed curves: blast-wave fits to individual particles; dotted curves: combined blast-wave fits (see text for details). Statistical (error bars) and systematic (boxes) uncertainties plotted. An additional normalization uncertainty (see table 3) has to be added in quadrature.
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[png]   [pdf]   [eps]
[png]   [pdf]   [eps]