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V. Riabov et al.

Fitting PHENIX identified hadron production spectra to Tsallis function in p+p and d+Au collisions at 200 GeV. V. Riabov et al. Phys. Rev. D 83, 052004 (2011). Production spectra, p+p @ 200 GeV. Wide variety of hadrons, shown charge averaged ToF + different decay modes  good agreement.

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V. Riabov et al.

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  1. Fitting PHENIX identified hadron production spectra to Tsallis function in p+p and d+Au collisions at 200 GeV V. Riabov et al. PHENIX/Tsallis 31.01.2013

  2. Phys. Rev. D 83, 052004 (2011) Production spectra, p+p @ 200 GeV • Wide variety of hadrons, shown charge averaged • ToF + different decay modes  good agreement PHENIX/Tsallis 31.01.2013

  3. Closer look at fit parameters, p+p @ 200 GeV • Power law fits give similar values of power index  for all hadrons • Observe ~ linear dependence of Tsallis fit parameters on hadron mass • Indication of separation between mesons & baryons PHENIX/Tsallis 31.01.2013

  4. Ratio of experimental points to Tsallis fits with fixed parameters n & T • Still observe reasonable agreement with data • Constrained fits can be used for estimation of spectral shapes for hadrons measured in a limited pT range Fits to Tsallis with fixed n & T, p+p @ 200 GeV PHENIX/Tsallis 31.01.2013

  5. Wide variety of hadrons • Production spectra can be described with Tsallis function • ToF + heavy hadrons can be added • Potential for similar analysis of fit parameters Production spectra, d+Au @ 200 GeV PHENIX/Tsallis 31.01.2013

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