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How the blast-wave model describes PID hadron spectra from 5 TeV p-Pb collisions

Thomas A. Trainor

SciPost Phys. Proc. 15, 025 (2024) · published 3 April 2024

Proceedings event

51st International Symposium on Multiparticle Dynamics


The blast-wave (BW) spectrum model has been applied extensively to nucleus-nucleus collision data with the intention to demonstrate formation of a quark-gluon plasma (QGP) in more-central A-A collisions. More recently the BW model has been applied to p-p, d-Au and p-Pb collisions. Such results are interpreted to indicate that "collectivity" (flows) and QGP appear in smaller systems. In this talk I review BW analysis of identified-hadron spectra from 5 TeV p-Pb collisions and examine the shape evolution of model spectra with collision centrality. I evaluate data-model fit quality using conventional statistical measures. I conclude that the BW model is not a valid data model.

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