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arXiv 2307.06321hep-phnucl-th
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偶极图像中次领头阶的衍射深度非弹性散射

Diffractive Deep Inelastic Scattering in the Dipole Picture at Next-to-Leading Order

G. Beuf, H. Hänninen, T. Lappi, H. Mäntysaari, Y. Mulian

AI总结:

本文在偶极图像与冲击波近似下计算高能衍射深度非弹性散射中 $q\ar qg$ 产生的次领头阶贡献,验证其有限性及高 $Q^2$、大 $M_X^2$ 极限,并讨论 CGC 完整 NLO 结果与唯象应用。

摘要:

我们计算了在高能条件下,$q \ar q g$ 态产生对深度非弹性散射中衍射截面的贡献。所得截面本身是有限的,并构成衍射结构函数完整次领头阶结果的一部分。我们对衍射结构函数的计算采用精确运动学,并在散射过程的冲击波近似下进行。计算完成后,我们表明,通过取适当的极限,可以从我们的结果中提取先前已知的高 $Q^2$ 和大 $M_X^2$ 区域的行为。此外,我们讨论了在 color glass condensate(CGC,色玻璃凝聚体)形式体系中获得结构函数完整次领头阶结果所需的步骤,以及这些结果在唯象学中的应用。

英文摘要:

We calculate the contribution from the $q \bar q g$ state production to the diffractive cross sections in deep inelastic scattering at high energy. The obtained cross section is finite by itself, and consists a part of the full next-to-leading order result for the diffractive structure functions. Our calculation for the diffractive structure functions is performed using exact kinematics, under the shockwave approximation of the scattering process. Once the calculation is completed, we show that the previously known behaviour at the high-$Q^2$ and large-$M_X^2$ regime can be extracted from our results by taking the appropriate limits. Furthermore, we discuss the steps required to obtain the complete next-to-leading order results for the structure functions in the color glass condensate (CGC) formalism, and the application of these results to phenomenology.

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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