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arXiv 1503.05437hep-phhep-th
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Balitsky-Kovchegov发展方程的解析解

On the Analytic Solution of the Balitsky-Kovchegov Evolution Equation

Sergey Bondarenko, Alex Prygarin

摘要:

本文给出了Balitsky-Kovchegov~(BK)方程在特定运动学下的解析解。在动量空间中,利用规范伴随表象中截断Balitsky-Fadin-Kuraev-Lipatov~(BFKL)方程的本征函数,计算了Regge~(Mandelivery)切割对平面螺旋度振幅的贡献。我们引入了一个特征函数的单重BFKL方程的伴随特征函数乘以一个因子,恢复对偶共形对称的伴随和破坏的单重BFKL方程。所提出的解析BK解正确地再现了初始条件和散射振幅的高能渐近性。

英文摘要:

The study presents an analytic solution of the Balitsky-Kovchegov~(BK) equation in a particular kinematics. The solution is written in the momentum space and based on the eigenfunctions of the truncated Balitsky-Fadin-Kuraev-Lipatov~(BFKL) equation in the gauge adjoint representation, which was used for calculation of the Regge~(Mandelstam) cut contribution to the planar helicity amplitudes. We introduce an eigenfunction of the singlet BFKL equation constructed of the adjoint eigenfunction multiplied by a factor, which restores the dual conformal symmetry present in the adjoint and broken in the singlet BFKL equations. The proposed analytic BK solution correctly reproduces the initial condition and the high energy asymptotics of the scattering amplitude.

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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