Rapidity Distribution of Charged Pions From Pb+Pb and Au+Au Central Collisions
Journal Title: JOURNAL OF ADVANCES IN PHYSICS - Year 0, Vol 12, Issue 1
Abstract
Rapidity distributions for charged pions produced from central collisions Pb+Pb and Au+Au at (b ≤ 3.4 fm.) in range of energy 2 GeV up to = 200 GeV are investigated. The experimental results are studied in terms of the Ultra-relativistic Quantum Molecular Dynamic Model Ur-QMD. In general, the model can give suitable predictions of rapidity distributions for production of charged pions from interactions with energies below 160 A GeV. This model is supported the assumption that the onset of de-confinement is located at low energies. It treats the initial nucleon-nucleon interactions within a string-hadronic framework. In addition, it includes effects such as string-string interactions and hadronic re-scattering that expected to be relevant in A+A collisions. There is a kind of similarity for mechanism responsible for production of the two charge states of pions and it can extended to other hadrons. Ultra-relativistic quantum molecular dynamic model give good description on energy dependence for charged pion productions and points of maximum rapidity.
Authors and Affiliations
Ahmed Mohamed Abdalla
Keywords
Related Articles
- EP ID EP653263
- DOI 10.24297/jap.v12i1.167
- Views 83
- Downloads 0
On approximate a-homomorphisms and derivations in C*-ternary algebras
Boson peak and nanostructure of chalcogenide glass-like semiconductors
The structural features of As2Se3, As40Se30S30, As40Se30Te30, As33.3Se33.3S33.4, As33.3Se33.3Te33.4 chalcogenide glasses have been studied by Raman spectroscopy in low-energy region. The results are explained in view of...
Effect of Temperature on Cu-doped p-ZnTe Thin-Films
In this paper we study the effect of temperature in 150 (±5) and 80 (±5) nm p-ZnTe thin- films immersed in 60 mgCu(NO3)2-3H2O/150 ml (H2O) for 1 minute, and heated at 200 and 300 °C for 30 minutes. Active layers were dep...
THE CONCEPTUAL DEFECT OF THE LAW OF UNIVERSAL GRAVITATION OR FREE FALL: A DIALECTICAL REASSESSMENT OF KEPLERS LAWS:
The concept of Universal Gravitation or Free Fall common to both Newtons Law and the Theory of General Relativity (GR) of Albert Einstein is one-sided, idealistic and an anti-dialectical notion in cosmology. It is also...
Path to Lasting Peace
Maybe many a time you looked at clock and realized passing time as normal or according to Einstein or Heisenberg theory have a deeper view about time and place acting. I was thinking about this great acting as you and al...