NNLOCAL: completely local subtractions for color-singlet production in hadron collisions

IF 5.4 1区物理与天体物理 Q1 Physics and Astronomy

Journal of High Energy Physics Pub Date : 2025-05-16 DOI:10.1007/JHEP05(2025)151

V. Del Duca, C. Duhr, L. Fekésházy, F. Guadagni, P. Mukherjee, G. Somogyi, F. Tramontano, S. Van Thurenhout

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引用次数: 0

Abstract

We present NNLOCAL, a proof-of-concept parton-level Monte Carlo program implementing the extension of the completely local subtraction scheme CoLoRFulNNLO to the case of color-singlet production in hadron collisions. We have built general local subtraction terms that regularize all single and double unresolved infrared singularities in real radiation phase space. The subtractions are then integrated fully analytically to the required order in the parameter of dimensional regularization. Combining the integrated counterterms with the virtual contributions we demonstrate the cancellation of all infrared poles explicitly. We validate our procedure by computing the fully differential cross section for the production of a Higgs boson at the LHC in an effective field theory with gluons only. Our code provides the first public implementation of a completely local analytic subtraction scheme at next-to-next-to-leading order accuracy.

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NNLOCAL：强子碰撞中颜色单重态产生的完全局部减法

我们提出了NNLOCAL，一个概念验证的部分级蒙特卡罗程序，实现了将完全局部减法方案CoLoRFulNNLO扩展到强子碰撞中产生颜色单线态的情况。我们建立了正则化实辐射相空间中所有单、双分辨红外奇点的一般局部减法项。然后将减法完全解析地积分到维度正则化参数中所需的阶数。结合积分反项和虚贡献，我们明确地证明了所有红外极点的抵消。我们通过计算在只有胶子的有效场论中在大型强子对撞机上产生希格斯玻色子的完全微分截面来验证我们的程序。我们的代码提供了第一个完全局部解析减法方案的公开实现，其精度为次至次至领先的顺序。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of High Energy Physics 物理-物理：粒子与场物理

CiteScore

10.30

自引率

46.30%

发文量

2107

审稿时长

1.5 months

期刊介绍： The aim of the Journal of High Energy Physics (JHEP) is to ensure fast and efficient online publication tools to the scientific community, while keeping that community in charge of every aspect of the peer-review and publication process in order to ensure the highest quality standards in the journal. Consequently, the Advisory and Editorial Boards, composed of distinguished, active scientists in the field, jointly establish with the Scientific Director the journal''s scientific policy and ensure the scientific quality of accepted articles. JHEP presently encompasses the following areas of theoretical and experimental physics: Collider Physics Underground and Large Array Physics Quantum Field Theory Gauge Field Theories Symmetries String and Brane Theory General Relativity and Gravitation Supersymmetry Mathematical Methods of Physics Mostly Solvable Models Astroparticles Statistical Field Theories Mostly Weak Interactions Mostly Strong Interactions Quantum Field Theory (phenomenology) Strings and Branes Phenomenological Aspects of Supersymmetry Mostly Strong Interactions (phenomenology).