arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0910.0796hep-phnucl-th
收藏

DIS中的饱和和临界现象

Saturation and Critical Phenomena in DIS

L. L. Jenkovszky, S. M. Troshin, N. E. Tyurin

摘要:

有人认为,预计turn-down在$x- Q^2$的横截面(结构功能$F_2(x,Q^2)$),假设从核子中的部分子密度饱和的结果,是有关的相变从(几乎)理想的部分子气体,服从Bjorken标度,部分子“液体”。这可以在统计模型、渗流和其他强相互作用物质集体现象的方法的框架内量化。讨论了轻子-强子碰撞、强子-强子碰撞和核碰撞的异同。

英文摘要:

It is argued that the expected turn-down in $x- Q^2$ of the cross sections (structure functions $F_2(x,Q^2)$), assumed to result from the saturation of parton densities in the nucleon, is related to a phase transition from the (almost) ideal partonic gas, obeying Bjorken scaling, to a partonic "liquid". This can be quantified in the framework of statistical models, percolation and other approaches to collective phenomena of the strongly interacting matter. Similarities and differences between the case of lepton-hadron, hadron-hadron and nuclear collisions are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑