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共线因子分解违反与雷吉化

Collinear Factorization Violation and Reggeization

Damiano Barcaro, Anjie Gao, Jonathan R. Gaunt, Aditya Pathak

arXiv 2607.14259首次发表:更新:

AI 中文总结

研究在类空共线极限下单个胶子夹在格劳伯区域的振幅,推导全阶软共线子图因子分解,证明其雷吉化,借助新软件工具简化有效理论子图来降低计算多点振幅中共线因子分解破坏项的复杂性。

AI 中文摘要

我们在类空共线极限下,针对在格劳伯区域中被单个胶子夹住的振幅,推导了全阶软共线子图因子分解。我们表明这些贡献呈现雷吉化,结合了前向散射和硬散射的方面。通过尽可能远离格劳伯区域进行变形,我们证明了有效理论子图有显著简化,从而大幅降低了计算多点振幅中共线因子分解破坏项的复杂性。我们的工作借助新软件工具的开发,开启了对多圈级涉及格劳伯交换过程的系统研究。

英文摘要

We derive an all-order soft-collinear subgraph factorization in the space-like collinear limits of amplitudes for single gluon pinched in the Glauber region. We show that these contributions exhibit Reggeization, combining aspects of both forward and hard scattering. By deforming away from the Glauber region wherever possible we demonstrate a dramatic simplification of the effective theory subgraphs and thereby drastically reducing the complexity in computing collinear factorization breaking terms in multi-point amplitudes. Our work is aided with development of new software tools initiating a systematic study of processes involving Glauber exchanges at a multi-loop level.

Comments6 pages + 2 pages end matter, 4 figures

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