Radiation effects in electroweak processes at current and future hadron colliders

当前和未来强子对撞机弱电过程中的辐射效应

• 批准号: 428827435
• 负责人: Professorin Dr. Barbara Jäger
• 金额: --
• 依托单位: Institut für Theoretische Physik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/428827435?language=en
• 关键词: Radiation; effects; electroweak; processes; current

After the discovery of the Higgs boson accurate measurements confronted with high-precision calculations are essential to reveal whether all properties of this new particle are compatible with the expectations of the Standard Model. Complementary to information gained in the Higgs sector itself, crucial constraints on the structure of the Standard Model are provided by a precision analysis of the gauge boson sector. While the status of the required higher-order perturbative calculations in terms of the strong interaction is quite advanced, electroweak corrections have received less attention in the past. However, their impact can be considerable at currently accessible collider energies already, and is expected to become even more significant at future hadron colliders operating at yet higher energies. With this proposal we envisage to close that gap for a selection of phenomenologically particularly important electroweak processes at hadron colliders. For these we plan to develop Monte-Carlo programs that permit, at the same time, the computation of strong and electroweak corrections and their matching with QCD and QED shower generators. This will allow us to obtain accurate yet realistic predictions for experimentally accessible observables at current and future hadron colliders. With our new tools we will perform detailed phenomenological studies to quantify the interplay of various types of radiation effects in different energy regimes.

在发现希格斯玻色子之后，精确的测量和高精度的计算对于揭示这种新粒子的所有性质是否与标准模型的预期相容是至关重要的。作为对希格斯玻色子扇区本身所获得信息的补充，对规范玻色子扇区的精确分析提供了对标准模型结构的关键约束。虽然在强相互作用方面所需的高阶微扰计算的地位是相当先进的，电弱修正在过去得到的关注较少。 然而，它们的影响在目前可获得的对撞机能量下已经相当可观，并且预计在未来的强子对撞机中以更高的能量运行将变得更加重要。有了这个建议，我们设想缩小差距，选择现象学上特别重要的电弱过程在强子对撞机。为此，我们计划开发蒙特-卡罗程序，允许在同一时间，计算强和电弱修正和它们的匹配与QCD和QED簇射发生器。这将使我们能够在当前和未来的强子对撞机上获得准确而现实的预测。利用我们的新工具，我们将进行详细的现象学研究，以量化不同能量状态下各种类型的辐射效应的相互作用。