摘要
考虑到质子内部分子横向空间分布,在色玻璃凝聚理论框架下分别利用KLN(Kharzeev Levin Nardi)模型和AdS/CFT(Anti-de Sitter space/Conformal Field Theory)模型,计算了欧洲大型强子对撞机当碰撞质心能量槡s=7 TeV时质子-质子碰撞中的熵密度。计算发现:AdS/CFT模型理论结果沿x和y方向变化趋势比KLN模型结果要缓慢得多,而且当碰撞参数较大时,等熵密度线椭圆效果较为明显。
By means of the KLN( Kharzeev Levin Nardi) model and the AdS /CFT( Anti-de Sitter space / Conformal Field Theory) model,taking account of the transverse spatial distribution of hard partons in the proton,the initial entropy density in proton-proton collisions at Large Hadron Collider with center of mass energy槡s = 7 TeV is studied within the Color Glass Condensate framework. It is shown that the AdS / CFT results versus x and y change more slowly than those of the KLN model,and the elliptical effect of the entropy density contours is clear at large impact factor.
出处
《装甲兵工程学院学报》
2013年第5期99-102,共4页
Journal of Academy of Armored Force Engineering
基金
国家自然科学基金项目(11247322/A050306)
河北省自然科学基金资助项目(A2012210043)
关键词
熵密度
色玻璃凝聚
厚度函数
entropy density
Color Glass Condensate
thickness function
