Reggeization of the quark-quark scattering amplitude in QCD.
Reggeization of the quark-quark scattering amplitude in QCD.
复制标题
QCD 中夸克-夸克散射幅度的正则化。
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
A. Quartarolo
中科院分区：
文献类型：
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作者：
V. Fadin;R. Fiore;A. Quartarolo
{ital在双圈近似下，在Regge运动学区域计算了夸克-夸克散射振幅随{italt}道胶子量子数的s}道不连续性和一个负签名.利用这种不连续性，并假设Regge渐近行为由Regge化胶子贡献给出，我们计算了双圈近似下的胶子轨迹。显着的取消导致的独立性的轨迹上的属性的散射夸克，确认胶子雷奇化。美国物理学会（American Physical Society）
{ital s}-channel discontinuity of the quark-quark scattering amplitude with gluon quantum numbers in the {ital t} channel and a negative signature is calculated in the Regge kinematical region in the two-loop approximation. Using this discontinuity and assuming that the Regge asymptotic behavior is given by the Reggeized gluon contribution, we calculate the gluon trajectory in the two-loop approximation. Remarkable cancellations lead to the independence of the trajectory on properties of the scattered quarks, confirming the gluon Reggeization. {copyright} {ital 1996 The American Physical Society.}