arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1012.3178hep-th
收藏

Regge极限下3->3胶子散射的MHV振幅

MHV amplitude for 3->3 gluon scattering in Regge limit

J. Bartels, L. N. Lipatov, A. Prygarin

摘要:

在Regge极近似不成立的物理区域中,计算了多Regge运动学下胶子跃迁3->3的六粒子平面MHV振幅的BDS公式的修正.在两个循环的剩余功能获得的解析延续的表达式推导Goncharov,Spradlin,Vergu和Volovich的运动区域所描述的Mandelovich奇异交换的交叉通道。它包含与BFKL预测一致的虚贡献和实贡献。三回路表达式的实部是从一个作者导出的多Regge运动学中的余项函数的色散类全回路公式中找到的。我们还预测了剩余函数乘以BDS相位的全回路实部,这可以通过在强耦合常数的范围内计算来获得。

英文摘要:

We calculate corrections to the BDS formula for the six-particle planar MHV amplitude for the gluon transition 3->3 in the multi-Regge kinematics for the physical region, in which the Regge pole ansatz is not valid. The remainder function at two loops is obtained by an analytic continuation of the expression derived by Goncharov, Spradlin, Vergu and Volovich to the kinematic region described by the Mandelstam singularity exchange in the crossing channel. It contains both the imaginary and real contributions being in agreement with the BFKL predictions. The real part of the three loop expression is found from a dispersion-like all-loop formula for the remainder function in the multi-Regge kinematics derived by one of the authors. We also make a prediction for the all-loop real part of the remainder function multiplied by the BDS phase, which can be accessible through calculations in the regime of the strong coupling constant.

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。

↑