On The Hardening of The Spectrum of High-Energy Particles Formed in Heavy-Ion Collisions Considered within The Framework of The Hydrodynamic Approach

• 作者: Alexander T. D’ yachenko Konstantin A. Gridnev
• 来源期刊: 现代物理(英文)
• 学科: 物理学
• 关键词: HARDENING of The SPECTRUM HIGH-ENERGY Particles HEAVY-ION Hydrodynamics Hot Spot Fermi-Liquid FREEZE-OUT Density Skyrme-Type Interaction Double Differential Cross-Section Time Evolution Evaporation
• 年，卷（期）: 2011,（1）
• 页码范围: 8-11
• 页数: 4页
• 分类号: O57

摘要

The emission of high-energy particles in 16O + 197Au collisions at energy 20 MeV / nucleon is considered within the framework of the time evolution of a hot spot taking into account the hydrodynamic compression and expansion stages. In addition, the evaporation of the particles that are formed in the early (hot) stage of the evolution of the hot spot is included in the calculation of the spectrum. This leads to a hardening of the particle spectrum in its high-energy part, which is in agreement with experimental data.