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Emission of Neutral Pions with High Transverse Momenta in A-A and p-p Collisions at Energies Available at the BNL Relativistic Heavy Ion Collider 下载免费PDF全文
Invariant neutral pion (π^0) yields in Au-Au and Cu-Cu collisions and invariant π^0 cross sections in p-p collisions are studied in the framework of a two-cylinder model. The considered distributions of neutral pions at the maximum energy of the relativistic heavy ion eollider (RFIIC) have a tail part in the region of high transverse momentum. A two-component distribution based upon the two-cylinder model is used to describe the experimental data of the PHENIX collaboration. 相似文献
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用三火球模型分析了核--核以AGS(the Alternating Gradient Synchrotron)和SPS(the Super Proton Synchrotron)能量碰撞中产生质子的快度分布. Monte Carlo方法计算的结果分别与金--金以6, 8和10.8A GeV的能量并以不同中心性碰撞、铅-铅以158A GeV/c的动量碰撞、以及硫-硫以200A GeV/c的动量碰撞的实验数据符合. 相似文献
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Transverse Momentum and Rapidity Distributions of Φ Mesons Produced in Pb-Pb Collisions at SPS Energies 下载免费PDF全文
To investigate the excitation degree of the interacting system and the penetrating power of the projectile nucleus and to understand their dependences on incident energy, the transverse momentum and rapidity distributions of particles produced in nucleus-nucleus collisions at high energies are studied by using a multisource ideal gas model. The calculated results are compared with the most recent NA49 experimental data of φ mesons produced in Pb-Pb collisions at the Super Proton Synchrotron (SPS) energies. 相似文献
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