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Particle production and chemical freezeout from the hybrid UrQMD approach at NICA energies

Eur. Phys. J. A • 2016
العودة
معلومات البحث
المؤلفون Abdel Nasser Tawfik1,2*, Loutfy I. Abou-Salem3, Asmaa G. Shalaby2,3, Mahmoud Hanafy2,3, Alexander Sorin4,5,6,7, Oleg Rogachevsky5 and Werner Scheinast5
الكلمات المفتاحية Not Available
المجلة العلمية Eur. Phys. J. A
الناشر Springer-Verlag Berlin Heidelberg, 2016
المجلد 52
العدد Not Available
الصفحات 324
publication.type International
رابط البحث Open Link
المواد المرفقة Not Available
الملخص
The energy dependence of various particle ratios is calculated within the Ultra-relativistic Quantum Molecular Dynamics approach and compared with the hadron resonance gas (HRG) model and measurements from various experiments, including RHIC-BES, SPS and AGS. It is found that the UrQMD particle ratios agree well with the experimental results at the RHIC-BES energies. Thus, we have utilized UrQMD in simulating particle ratios at other beam energies down to 3GeV, which will be accessed at NICA and FAIR future facilities. We observe that the particle ratios for crossover and first-order phase transition, implemented in the hybrid UrQMD v3.4, are nearly indistinguishable, especially at low energies (at large baryon chemical potentials or high density).