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Rare fluctuations of the S matrix at NLO in QCD

机译:QCD中NLO处S矩阵的稀有波动

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We calculate the rare fluctuations of the S matrix for high-energy dipole-dipole scattering on top of the full next-to-leading-order corrections in the center of mass frame. The relevant result in the saturation regime shows that the exponential factor of the S matrix is 2 as large as the result which emerges when the rare fluctuation effects are taken into account. We find that the factor of 2 change of the exponential factor is induced by the gluon loop corrections which compensate for part of the rapidity decrease of the S matrix made by quark loops and lead to the rare fluctuations becoming important again. To ensure the relevant results of the S matrix are independent of the frame choice, the rare fluctuations of the S matrix are also derived in a general frame. It is found that all the results are consistent with each other in both frames.
机译:我们在质心中心完整的下一阶前导校正的基础上,为高能偶极-偶极散射计算了S矩阵的罕见波动。饱和状态下的相关结果表明,S矩阵的指数因子是考虑到罕见的波动效应时出现的结果的2倍。我们发现,胶子定量环校正引起了指数因子2变化的因子,胶子定量环校正补偿了夸克环引起的S矩阵快速下降的一部分,并导致罕见的波动再次变得重要。为了确保S矩阵的相关结果独立于帧选择,还可以在常规帧中得出S矩阵的罕见波动。发现在两个框架中所有结果彼此一致。

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