大型强子对撞机上极化同源 WW 散射的 NLO EW 和 QCD 校正

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

Journal of High Energy Physics Pub Date : 2024-11-20 DOI:10.1007/JHEP11(2024)115

Ansgar Denner, Christoph Haitz, Giovanni Pelliccioli

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引用次数: 0

摘要

我们首次计算了大型强子对撞机在全轻子衰变通道中的同源WW散射，包括中间电弱玻色子的极化模型和达到NLO EW+QCD精度的辐射修正。预测依赖于极点扩展和矩阵元素级的极化态分裂。研究了双极化和非极化信号以及完整的壳外结果。详细的现象学分析侧重于区分极化态的差分观测值，为利用 Run-3 大型强子对撞机数据对矢量玻色子散射进行以极化为导向的精细分析铺平了道路。

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NLO EW and QCD corrections to polarised same-sign WW scattering at the LHC

We present the first calculation of same-sign WW scattering at the LHC in the fully leptonic decay channel including the modelling of polarisation for intermediate electroweak bosons and radiative corrections up to NLO EW+QCD accuracy. The predictions rely on a pole expansion and on the split of polarisation states at matrix-element level. Doubly-polarised and unpolarised signals are investigated together with full off-shell results. A detailed phenomenlogical analysis is carried out focusing on differential observables that discriminate between polarisation states, paving the way for refined polarisation-oriented analyses of vector-boson scattering with Run-3 LHC data.

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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).