共振物质的重子化学势和奇异子化学势计算  

Calculation of Baryon Chemical Potential and Strangeness Chemical Potential in Resonance Matter

作　　者：傅元勇[1] 胡守扬[1] 陆中道[1] 华大平 

机构地区：[1]中国原子能科学研究院核物理研究所,北京102413 [2]核工业研究生部,北京102413

出　　处：《原子能科学技术》2006年第3期271-274,共4页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(10275096;19975075)

摘　　要：在高能重离子碰撞统计模型中,根据一定温度下的净重子密度和净奇异子密度计算出共振物质的重子化学势和奇异子化学势,并进一步分析净重子密度和净奇异子密度与重子化学势和奇异子化学势之间的关系。计算结果表明:重子化学势和奇异子化学势均随净重子密度和净奇异子密度的增大而增大,而净重子密度比净奇异子密度变化的影响要大得多。Based on the high energy heavy-ion collisions statistical model, the baryon chemical potential and strangeness chemical potential are calculated for resonance matter with net baryon density and net strangeness density under given temperature. Furthermore, the relationship between net baryon density, net strangeness density and baryon chemical potential, strangeness chemical potential are analyzed. The results show that baryon chemical potential and strangeness chemical potential increase with net baryon density and net strangeness density increasing, the change of net baryon density affects baryon chemical potential and strangeness chemical potential more strongly than the change of net strangeness density.

关 键 词：共振物质 净重子密度 净奇异子密度 重子化学势 奇异子化学势 

分 类 号：O645[理学—物理化学]