人才培养方案修订中的“五突出”原则

根据教育部实施的本科教学“质量工程”精神的要求,对我院本科专业人才培养方案进行了修订和制订.为了加强课程建设、培养学生实践和创新能力,在物理人才培养方案修订中实行了“五突出”原则.     

Unified description of angular distributions of target particles in light and heavy ion induced interactions in nuclear emulsions at high energies

Some investigations show that in light ion （LI） induced reactions, such as He, O, Ne, and Ar in nuclear emulsions （Em） at high energies, the angular distributions of the target particles show a wide structure around the polar angle V ≈ 60°. With heavy ions （HI） such as Kr and Au such a wide structure has not been observed. The experimental results on Mg-Em and Si-Em interactions also do not show such a wide structure in the angular distribution of the target particles. Using a multisource ideal gas model we uniformly describe the angular distributions of the target particles produced in LI-Em and HI-Em interactions. The result is not only in agreement with the mean trend, but also with the fluctuations of the experimental data. We conclude that the wide structure observed in LI-Em interactions may be the result of statistical fluctuations.     

Multiplicity distribution of final-state particles and different contributions of related sources in nucleus-nucleus collisions at high energies

The final state particle multiplicity distributions in high-energy nucleus-nucleus collisions are described by two different sub-distributions contributed by a single nucleon. The Monte Carlo calculated results from the two sub-distributions and the participant-spectator model are compared and found to be in agreement with the experimental data of Au-Au collisions at s=130 AGeV and Pb-Pb collisions at 158 AGeV.     

反并接和顺并接总自感系数的讨论

从两并联线圈中的电流变化率ｄｉ＿１／ｄｔ和ｄｉ＿２／ｄｔ的分配随互感系数Ｍ而变化来剖析反并按和顺并接的总自感系数Ｌ随Ｍ变化的规律。