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风味圆形对撞机:通过味变过程在未来环形对撞机-电子-正电子对撞机(FCC-ee)中探寻新物理

Flavored circular collider: cornering New Physics at FCC-ee via flavor-changing processes.

作者信息

Allwicher Lukas, Isidori Gino, Pesut Marko

机构信息

Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany.

Physik-Institut, Universität Zürich, 8057 Zurich, Switzerland.

出版信息

Eur Phys J C Part Fields. 2025;85(6):631. doi: 10.1140/epjc/s10052-025-14359-8. Epub 2025 Jun 9.

DOI:10.1140/epjc/s10052-025-14359-8
PMID:40502984
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12149267/
Abstract

We illustrate the potential of a future high-intensity collider running at the pole in probing extensions of the Standard Model via precise measurements of flavor-changing processes. We illustrate this potential both within effective field theories and simplified models inspired by current -physics data, focusing on selected flavor-physics measurement projections at FCC-ee, and by the theoretically well-motivated scenario of TeV-scale new physics predominantly coupled to third-generation fields. In particular, we demonstrate the key role played by the interplay among different flavor-physics measurements, and between flavor and electroweak measurements, in cornering the New Physics parameter space. Updated constraints on new physics, in the limit that no deviations from the Standard Model are observed, are also presented.

摘要

我们展示了未来在极点运行的高亮度对撞机通过对味变过程的精确测量来探索标准模型扩展的潜力。我们在有效场论以及受当前物理数据启发的简化模型中说明了这种潜力,重点关注在未来环形对撞机 - 轻子 - 轻子对撞机(FCC - ee)上选定的味物理测量预测,以及由主要与第三代场耦合的太电子伏特(TeV)尺度新物理的理论动机良好的情景。特别是,我们展示了不同味物理测量之间以及味与电弱测量之间的相互作用在限制新物理参数空间方面所起的关键作用。还给出了在未观察到与标准模型有偏差的极限情况下对新物理的最新限制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/8709d06fefb0/10052_2025_14359_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/76c0e300ab05/10052_2025_14359_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/5ba7bee57f9d/10052_2025_14359_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/a1a741a456b3/10052_2025_14359_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/76b3d650da5b/10052_2025_14359_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/889c472fcc82/10052_2025_14359_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/bd24f5741d68/10052_2025_14359_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/0b5edeb13241/10052_2025_14359_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/1717efcf8f83/10052_2025_14359_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/8709d06fefb0/10052_2025_14359_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/76c0e300ab05/10052_2025_14359_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/5ba7bee57f9d/10052_2025_14359_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/a1a741a456b3/10052_2025_14359_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/76b3d650da5b/10052_2025_14359_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/889c472fcc82/10052_2025_14359_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/bd24f5741d68/10052_2025_14359_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/0b5edeb13241/10052_2025_14359_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/1717efcf8f83/10052_2025_14359_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e12/12149267/8709d06fefb0/10052_2025_14359_Fig9_HTML.jpg

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Minimal Leptoquark Explanation for the R_{D^{(*)}}, R_{K}, and (g-2)_{μ} Anomalies.对 \(R_{D^{(*)}}\)、\(R_{K}\) 和 \((g - 2)_{\mu}\) 反常现象的最小轻夸克解释
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Phys Rev Lett. 2015 Oct 30;115(18):181801. doi: 10.1103/PhysRevLett.115.181801. Epub 2015 Oct 27.