FERMI-MOTION EFFECTS IN DEEP-INELASTIC LEPTON SCATTERING FROM NUCLEAR TARGETS
FERMI-MOTION EFFECTS IN DEEP-INELASTIC LEPTON SCATTERING FROM NUCLEAR TARGETS
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DOI：
10.1103/physrevd.23.1070
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发表时间：
1981-01-01
影响因子：
5
通讯作者：
RITCHIE, JL
中科院分区：
文献类型：
--
作者：
BODEK, A;RITCHIE, JL
本文用改进的Atwood-West方法计算了氘原子核靶的深度非弹性结构函数与自由中子和质子结构函数之和的比值。费米-气体动量分布经过修改后被使用，以包括核子-核子关联产生的高动量尾。给出了氘和几个重核的W1、W2和W3的拖尾率随x和Q2的变化表。我们发现，当x> 0.5时，重核的标度破坏比自由核子的标度破坏小。反夸克分布的形状也发生了变化。
The ratio of deep-inelastic structure functions of nuclear targets to the sum of free neutron and proton structure functions has been calculated using a modified form of the Atwood-West technique for deuterium. Fermi-gas momentum distributions were used with modifications to include high-momentum tails resulting from nucleon-nucleon correlations. Tables of smearing ratios for W 1, W 2, and W 3 are given as a function of x and Q 2 for deuterium and several heavy nuclei. We find that for x> 0.5 the scaling violations for heavy nuclei are smaller than those for free nucleons. The shapes of the antiquark distributions are also changed.