Beam energy dependence of strange hadron production from STAR at RHIC

We review the methods and results obtained in an analysis of the experimental heavy ion collision research program at nuclear beam energy of 160–200 A GeV. We study strange, and more generally, hadronic particle production experimental data. We discuss present expectations concerning how these observables will perform at other collision energies. We also present the dynamical theory of strangeness production and apply it to show that it agrees with available experimental results. We describe strange hadron production from the baryon-poor quark-gluon phase formed at much higher reaction energies, where the abundance of strange baryons and antibaryons exceeds that of nonstrange baryons and antibaryons.

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System size dependence of hadron production in A+A collisions at 40AGeV beam energy

Journal of Physics G Nuclear and Particle Physics ◽

10.1088/0954-3899/31/6/073 ◽

2005 ◽

Vol 31 (6) ◽

pp. S1131-S1136 ◽

Cited By ~ 6

Author(s):

Peter Dinkelaker ◽

the NA49 Collaboration

Keyword(s):

Beam Energy ◽

Size Dependence ◽

System Size ◽

Hadron Production

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Energy dependence of hadron yields in pp and AA collisions

International Journal of Modern Physics Conference Series ◽

10.1142/s201019451560109x ◽

2015 ◽

Vol 39 ◽

pp. 1560109

Author(s):

D. A. Artemenkov ◽

G. I. Lykasov ◽

A. I. Malakhov

Keyword(s):

Energy Dependence ◽

Hadron Production ◽

Exponential Form ◽

Suggested Approach ◽

High Energies ◽

Aa Collisions

To describe the data on hadron production at high energies in the midarapidity region and not large transverse momenta [Formula: see text], we modify the simple exponential form of the [Formula: see text]-spectrum. The hadron [Formula: see text]-spectrum is presented in two parts due to the contributions of quarks and gluons, each of them has different energy dependence. The suggested approach alows us to describe rather satisfactorily the inclusive spectra of hadrons produced in [Formula: see text] collisions at energies from the AGS up to LHC.

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Energy Dependence of Total Cross Sections for Reactions with 4, 6he, 6, 7, 9li Nuclei

KnE Energy ◽

10.18502/ken.v3i1.1717 ◽

2018 ◽

Vol 3 (1) ◽

pp. 21

Author(s):

Yu Penionzhkevich ◽

Yu Sobolev ◽

V Samarin ◽

M Naumenko

Keyword(s):

Experimental Data ◽

Energy Range ◽

Numerical Solution ◽

Energy Dependence ◽

Cross Sections ◽

Beam Energy ◽

Microscopic Analysis ◽

Time Dependent ◽

Total Cross Sections ◽

Good Agreement

The paper presents the results of measurement of the total cross sections for reactions 4,6He + Si and 6,7,9Li + Si in the beam energy range 5−50 A⋅MeV. The enhancements of the total cross sections for reaction 6He + Si compared with reaction 4He + Si, and 9Li + Si compared with reactions 6,7Li + Si have been observed. The performed microscopic analysis of total cross sections for reactions 6He + Si and 9Li + Si based on numerical solution of the time-dependent Schrödinger equation for external neutrons of projectile nuclei 6He and 9Li yielded good agreement with experimental data.

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