Frontemare di Trieste
Istituto Nazionale di Fisica Nucleare
Sezione di Trieste

Spectra and comparison with the models

Figures 1 and 2 show the corrected spectrum fitted with a Levy-Tsallis function. The overall uncertainties (sum in quadrature of statistical and systematical errors) is shown. In order to separate the two contributions to the total uncertainty in the fit parameters, the fit has been performed also with the statistical errors only. Figure 4 shows the mean pt versus particle mass. The < pt > for the Σ∗+ from this analysis has been inserted.

EM_Spectrum_Part.png

Figure 1: Corrected spectrum for both Σ∗+ and Σ∗− with Levy-Tsallis fit. Statistical and systematical uncertainties are summed in quadrature.

EM_Spectrum_AntiPart.png

Figure 2: Corrected spectrum for both Anti- Σ∗− and Anti-Σ∗+ with Levy-Tsallis fit. Statistical and systematical uncertainties are summed in quadrature.

EM_Spectrum_Fit.png

Figure 14: Computation of extrapolation systematics by using an alternative mt - exponential to represent the spectrum.

myfig_mspp7TeV_meanpt_WithSTARAuAu200GeV.png

Figure 4: Mean pt versus particle mass.

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