arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2603.28296hep-ph
收藏

对扩展标量sector中任何H3和任何HH的三线性希格斯耦合和希格斯对产生进行精确预测

Precise predictions for trilinear Higgs couplings and Higgs pair production in extended scalar sectors with anyH3 and anyHH

Universität Heidelberg(海德堡大学);Deutsches Elektronen-Synchrotron DESY(德国电子同步辐射中心);Albert-Ludwigs-Universität Freiburg(弗赖堡大学);Instituto de Física Teórica (UAM/CSIC), Universidad Autónoma de Madrid(马德里自治大学理论物理研究所);Universität Hamburg(汉堡大学)

Henning Bahl, Johannes Braathen, Martin Gabelmann, Kateryna Radchenko, Georg Weiglein

AI总结:

本文提出anyBSM工具,用于在任意可重整化理论中计算所有三线性标量耦合,以高精度预测希格斯自耦合及其他三线性标量相互作用,为解析高精度希格斯测量提供理论支持。

摘要:

未来对撞机实验的核心目标是探测希格斯势能结构,这需要访问三线性标量耦合,特别是观测到的希格斯玻色子的自耦合。虽然在标准模型中该耦合是固定的,但在超出标准模型的场景中可能会有显著修改,通常与解决宇宙物质-反物质不对称性等开放问题相关。在具有扩展标量sector的理论中,涉及额外标量状态的辐射修正会显著影响希格斯自耦合和其他三线性标量相互作用,这对物理可观测量的预测有重要影响。因此,精确的理论计算对于解析高精度希格斯测量和识别新物理的间接信号至关重要。本文介绍了anyBSM工具的最新版本,该工具可自动计算任意可重整化理论中所有三线性标量耦合,包括完整的动量依赖性和灵活的重整化方案选择。此外,还讨论了新的模块anyHH在胶子融合过程中双希格斯产生,在多个示例BSM模型中,包括多共振场景中。

英文摘要:

A central objective of future collider experiments is to probe the structure of the Higgs potential, which requires access to trilinear scalar couplings, in particular the self-coupling of the observed Higgs boson. While this coupling is fixed in the Standard Model (SM), it can receive sizable modifications in many Beyond the SM (BSM) scenarios, often connected to solutions of open problems such as the origin of the matter-antimatter asymmetry of the Universe. In theories with extended scalar sectors, radiative corrections involving additional scalar states can significantly affect both the Higgs self-coupling and other trilinear scalar interactions, with important consequences for predictions of physical observables. Precise theoretical calculations are therefore essential for the interpretation of precision Higgs measurements and for identifying indirect signatures of new physics. This contribution presents the latest version of the public tool anyBSM, which provides automated calculations of all trilinear scalar couplings at full one-loop order in arbitrary renormalisable theories, including full momentum dependence and flexible renormalisation-scheme choices. In addition, the new module anyHH for di-Higgs production in gluon fusion is discussed in several exemplary BSM models, including scenarios with multiple resonances.

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。

↑