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不同能量下核束缚能的影响
引用本文:郭爱强,侯召宇.不同能量下核束缚能的影响[J].原子核物理评论,2007,24(1):16-20.
作者姓名:郭爱强  侯召宇
作者单位:1 石家庄铁道学院数理系, 河北 石家庄 050043; 2 河北师范大学物理学院, 河北 石家庄 050016
摘    要:在不同能量下, 利用核束缚能对虚光子四动量的平方项进行修正, 分别计算了Sn核碰撞中核束缚能对反应截面中湮灭项和康普顿散射项及K因子的影响。 结果表明, 核束缚能在小x区域对反应截面中湮灭项和康普顿散射项及K因子的影响明显, 并且能量越低这种影响越显著, 随着x2增大影响逐渐消失。 We made a revision of square of virtual photon four momentum by means of using nuclear bin ding energy formula in different energy, and we also made an accurate calculation for the effect of nuclear binding energy on K factor and Compton term and annihilate term in the Drell Yan process of the Sn Sn collision. The outcome indicates that the effect of nuclear binding energy on the annihilate term and the Compton term is marked in little x region and the effect will become more obvious with decrease of the energy and come to disappear with increase of the x.

关 键 词:DrellYan过程    量子色动力学    核束缚能
文章编号:1007-4627(2007)01-0016-05
收稿时间:1900-01-01
修稿时间:2006-08-30

Influence of Nuclear Binding Energy in Different Energy
GUO Ai-qiang,HOU Zhao-yu.Influence of Nuclear Binding Energy in Different Energy[J].Nuclear Physics Review,2007,24(1):16-20.
Authors:GUO Ai-qiang  HOU Zhao-yu
Institution:1 Department of Mathematics and Physics, Shijiazhuang Railway Institute, Shijiazhuang 050043, China; 2 Department of Physics, Hebei Normal University, Shijiazhuang 050016, China
Abstract:We made a revision of square of virtual photon four momentum by means of using nuclear bin-ding energy formula in different energy,and we also made an accurate calculation for the effect of nuclear binding energy on K factor and Compton term and annihilate term in the Drell-Yan process of the Sn-Sn collision.The outcome indicates that the effect of nuclear binding energy on the annihilate term and the Compton term is marked in little x region and the effect will become more obvious with decrease of the energy and come to disappear with increase of the x.
Keywords:Drell-Yan process  QCD  nuclear binding energy
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