2015/08/31 by Dariusz Prorok · 2 citations
Physics and Astronomy · #Hadron #High-Energy Particle Collisions Research #Invariant (physics) #Mathematical physics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Production (economics) #Proton #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Resonance (particle physics) #Spectral line #hep-ex #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1088/0954-3899/43/5/055101
published as J. Phys. G: Nucl. Part. Phys. 43 (2016) 055101 · 10 pages, 2 figures, matches published version
openalex publication_date 2016/03/23 · arxiv created 2016/03/25 · arxiv updated 2016/03/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Many data in the high energy physics are, in fact, sample means. It is shown that when this exact meaning of the data is taken into account and the most weakly bound states are removed from the hadron resonance gas, the acceptable fit to the whole spectra of pions, kaons and protons measured at midrapidity in central Pb-Pb collisions at √sNN = 2.76 TeV [Phys.Rev.Lett.109,252301(2012)] is obtained. The invariant distributions are predicted with the help of the single-freeze-out model in the chemical equilibrium framework. Low pT pions and protons are reproduced simultaneously as well as p/π ratio. Additionally, correct predictions extend over lower parts of large pT data. Some more general, possible implications of this approach are pointed out.