Strangeness production in AA and pp collisions

Castorina P, Satz H (2016)
European Physical Journal A 52(7): 200.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Abstract / Bemerkung
Boost-invariant hadron production in high-energy collisions occurs in causally disconnected regions of finite space-time size. As a result, globally conserved quantum numbers (charge, strangeness, baryon number) are conserved locally in spatially restricted correlation clusters. Their size is determined by two time scales: the equilibration time specifying the formation of a quark-gluon plasma, and the hadronization time, specifying the onset of confinement. The expected values for these scales provide the theoretical basis for the suppression observed for strangeness production in elementary interactions (pp, e(+)e(-)) below LHC energies. In contrast, the space-time superposition of individual collisions in high-energy heavy-ion interactions leads to higher energy densities, resulting in much later hadronization and hence much larger hadronization volumes. This largely removes the causality constraints and results in an ideal hadronic resonance gas in full chemical equilibrium. In the present paper, we determine the collision energies needed for that; we also estimate when pp collisions reach comparable hadronization volumes and thus determine when strangeness suppression should disappear there as well.
Erscheinungsjahr
Zeitschriftentitel
European Physical Journal A
Band
52
Zeitschriftennummer
7
Artikelnummer
200
ISSN
eISSN
PUB-ID

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Castorina P, Satz H. Strangeness production in AA and pp collisions. European Physical Journal A. 2016;52(7): 200.
Castorina, P., & Satz, H. (2016). Strangeness production in AA and pp collisions. European Physical Journal A, 52(7), 200. doi:10.1140/epja/i2016-16200-5
Castorina, P., and Satz, H. (2016). Strangeness production in AA and pp collisions. European Physical Journal A 52:200.
Castorina, P., & Satz, H., 2016. Strangeness production in AA and pp collisions. European Physical Journal A, 52(7): 200.
P. Castorina and H. Satz, “Strangeness production in AA and pp collisions”, European Physical Journal A, vol. 52, 2016, : 200.
Castorina, P., Satz, H.: Strangeness production in AA and pp collisions. European Physical Journal A. 52, : 200 (2016).
Castorina, Paolo, and Satz, Helmut. “Strangeness production in AA and pp collisions”. European Physical Journal A 52.7 (2016): 200.

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arXiv: 1601.01454

Inspire: 1414211

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