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arXiv 2203.07907hep-ph
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Snowmass 2021白皮书:未来对撞机的恢复

Snowmass 2021 White Paper: Resummation for future colliders

Melissa van Beekveld, Sebastian Jaskiewicz, Tao Liu, Xiaohui Liu, Duff Neill, Alexander Penin, Felix Ringer, Robert Szafron, Leonardo Vernazza, Gherardo Vita, Jian Wang

摘要:

在当前和未来的高能对撞机实验中,恢复技术是高精度唯象学的必要条件。截面的微扰计算经常受到大的对数修正的影响,这必须被图解到所有阶以恢复第一原理预测的可靠性。对场论的全阶结构的精确理解,为标准模型的基本检验和新物理学的研究提供了条件。在本白皮书中,我们回顾了现代再成像技术的最新进展,并概述了未来的发展方向。特别地,我们着重讨论了超越主导功率的再确认,与喷流及其子结构相关的不同类的再确认,高能区的小$x$再确认和小$z_h$极限下的QCD碎裂过程。

英文摘要:

Resummation techniques are essential for high-precision phenomenology at current and future high-energy collider experiments. Perturbative computations of cross sections often suffer from large logarithmic corrections, which must be resummed to all orders to restore the reliability of predictions from first principles. The precise understanding of the all-order structure of field theories allows for fundamental tests of the Standard Model and new physics searches. In this white paper, we review recent progress in modern resummation techniques and outline future directions. In particular, we focus on the resummation beyond leading power, the joint resummation of different classes of logarithms relevant for jets and their substructure, small-$x$ resummation in the high-energy regime and the QCD fragmentation process in the small-$z_h$ limit.

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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