Inhomogeneous shadowing and energy loss effects in Drell–Yan processes
Inhomogeneous shadowing and energy loss effects in Drell–Yan processes
复制标题
DOI：
10.1088/0031-8949/75/5/010
复制
发表时间：
2007-03
期刊：
影响因子：
2.9
通讯作者：
Hongmin Wang;Xian-Jing Sun;B. Zhang
中科院分区：
文献类型：
--
作者：
Hongmin Wang;Xian-Jing Sun;B. Zhang
利用仅用轻子深度非弹性散射实验数据研究的核部分子分布，研究了p-A Drell-Yan双μ子产生过程中的空间非均匀阴影效应.利用多重软再散射理论，在Glauber框架内考虑了初始态能量损失的影响。计算结果与E772和E866的数据进行了比较。结果表明，考虑能量损失影响时，理论计算结果与实验结果吻合较好。本文还将非均匀阴影与均匀阴影的计算结果进行了比较，发现在相同参数下，非均匀阴影的结果比均匀阴影的结果表现出更强的能量损失效应。
By means of the nuclear parton distribution studied only with lepton deep-inelastic scattering experimental data, the effect of spatially inhomogeneous shadowing is studied in the p-A Drell–Yan dimuon production process. Using multiple soft rescattering theory, the initial state energy loss effect is also considered within the Glauber framework. The calculated results are compared to the E772 and E866 data. It is shown that the theoretical results while considering the energy loss effect are in good agreement with the experimental data. In this paper, we also compare the calculated results of inhomogeneous shadowing with those of homogeneous and find that the inhomogeneous shadowing results exhibit a stronger energy loss effect than the homogeneous results at the same parameter.