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arxiv 1811.00399 v2 pith:RKNHK47A submitted 2018-11-01 hep-ph nucl-th

A Comparison of p-p, p-Pb, Pb-Pb Collisions in the Thermal Model: Multiplicity Dependence of Thermal Parameters

Natasha Sharma , Jean Cleymans , Boris Hippolyte , Masimba Paradza This is my paper
classification hep-ph nucl-th
keywords canonicalensemblestrangenessthermalanalysischargedcollisionsconservation
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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% An analysis is made of the particle composition (hadrochemistry) of the final state in proton-proton (p-p), proton-lead (p-Pb) and lead-lead (Pb-Pb) collisions as a function of the charged particle multiplicity ($\dNchdeta$). The thermal model is used to determine the chemical freeze-out temperature as well as the radius and strangeness saturation factor $\gamma_s$. Three different ensembles are used in the analysis namely, the grand canonical ensemble, the canonical ensemble with exact strangeness conservation and the canonical ensemble with exact baryon number, strangeness and electric charge conservation. It is shown that for high multiplicities (at least 20 charged hadrons in the mid-rapidity interval considered) the three ensembles lead to the same results.

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Cited by 2 Pith papers

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  1. $\Lambda$(1520) as a probe of resonance-driven deuteron formation at the LHC

    hep-ex 2026-06 unverdicted novelty 7.0

    Simulations show a peak in the proxy mass M_(d/2)K only when deuterons form by coalescence of protons from Λ(1520) decays, not in thermal models.

  2. More uses for Thermal Models

    hep-ph 2026-02 unverdicted novelty 5.0

    Combinations of particle yields enable parameter-free tests of thermal models and extraction of μ_B/T, μ_S/T, μ_Q/T from RHIC BES data, matching published parameters and allowing predictions for other particles and nuclei.