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arXiv 0909.2078hep-phnucl-th
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零平面上当前代数的氘核结构函数的求和规则

The sum rule for the structure functions of the deuteron from the current algebra on the null-plane

Susumu Koretune

摘要:

利用零平面上电流反对易关系的连通矩阵元,导出了氘靶的定质量求和规则。从这些求和规则出发,我们得到了赝标介子-氘核总截面与氘核结构函数之间的关系。我们指出,质子海夸克平均超荷的核效应可以用这个关系来研究。进一步得到了小$Q^2$区的Born项、共振态和非共振背景之间的关系,并作为自旋1靶的一个新的方面,给出了小或中等$Q^2$区的张量结构函数$b_2$与大$Q^2$区的张量结构函数$b_2$之间的显式关系.

英文摘要:

The fixed-mass sum rules for the deuteron target have been derived by using the connected matrix element of the current anti-commutation relation on the null-plane. From these sum rules we obtain the relation between the pseudo-scalar meson deuteron total cross sections and the structure functions of the deuteron. We show that the nuclear effect on the mean hypercharge of the sea quark of the proton can be studied by this relation. Further we obtain the relation among the Born term, the resonances and the non-resonant background in the small $Q^2$ region, and as a new aspect of the spin 1 target, explicit relation of the tensor structure function $b_2$ at small or moderate $Q^2$ to that at large $Q^2$.

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。

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