Open Charm Production in $p + p$ and Pb + Pb collisions at the CERN Large Hadron Collider
| Autor: | Miklos Gyulassy, V. Topor Pop, M. Petrovici, Charles Gale, J. Barrette |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Nuclear and High Energy Physics
Meson Nuclear Theory FOS: Physical sciences 01 natural sciences High Energy Physics - Experiment Nuclear physics Nuclear Theory (nucl-th) High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology (hep-ph) Electric field 0103 physical sciences C++ string handling Charm (quantum number) Open charm 010306 general physics Jet quenching Nuclear Experiment Quenching Physics Large Hadron Collider 010308 nuclear & particles physics High Energy Physics::Phenomenology High Energy Physics - Phenomenology High Energy Physics::Experiment |
| DOI: | 10.48550/arxiv.1306.0885 |
| Popis: | Effects of strong longitudinal colour electric fields (SCF), shadowing, and quenching on the open prompt charm mesons (D$^0$, D$^+$, D$^{*+}$, D${_s}{^+}$) production in central Pb + Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV are investigated within the framework of the {\small HIJING/B\=B v2.0} model. We compute the nuclear modification factor $R_{\rm PbPb}^{\rm D}$, and show that the above nuclear effects constitute important dynamical mechanisms in the description of experimental data. The strength of colour fields (as characterized by the string tension $\kappa$), partonic energy loss and jet quenching process lead to a suppression factor consistent with recent published data. Predictions for future beauty mesons measurements have been included. Ratios of strange to non-strange prompt charm mesons in central Pb + Pb and minimum bias (MB) $ p + p$ collisions at 2.76 TeV are also discussed. Minimum bias $p + p$ collisions which constitute theoretical baseline in our calculations are studied at the centre of mass energies $\sqrt{s}$ = 2.76 TeV and 7 TeV. Comment: 34 pages, 10 figures, revtex4 |
| Databáze: | OpenAIRE |
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