New fermions in the light of the (g-2)μ

被引：2

作者：

Djouadi, A. ^{[1
,2
,3
]}

Criado, J. C. ^{[4
]}

Koivunen, N. ^{[3
]}

Muursepp, K. ^{[3
]}

Raidal, M. ^{[3
]}

Veermae, H. ^{[3
]}

机构：

[1] Univ Granada, CAFPE, Granada, Spain

[2] Univ Granada, Dept Fis Teor & Cosmos, Granada, Spain

[3] NICPB, Lab High Energy & Computat Phys, Tallinn, Estonia

[4] Univ Durham, Inst Particle Phys Phenomenol, Dept Phys, Durham, England

来源：

FRONTIERS IN PHYSICS | 2022年 / 10卷

关键词：

muon (g-2); new fermions; fermilab; review; new physics; particle physics; anomalous magnetic and dielectric properties; ANOMALOUS MAGNETIC-MOMENT; MUON; CONSTRAINTS; MASSES; LIMITS; G-2; COLLIDERS;

D O I：

10.3389/fphy.2022.964131

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The very precise measurement of the anomalous magnetic moment of the muon, recently released by the Muon g-2 experiment at Fermilab, can serve to set stringent constraints on new particles. If the observed 4 sigma discrepancy from the Standard Model value is indeed real, it will set a tight margin on the scale of the masses and couplings of these particles. Instead, if the discrepancy is simply a result of additional theoretical and experimental uncertainties to be included, strong constraints can be put on their parameters. In this mini-review, we summarize the impact of the latest muon g-2 measurement on new fermions that are predicted by a wide range of new physics models and with exotic quantum numbers and interactions. We will particularly discuss the case of vector-like leptons, excited leptons, and supersymmetric fermions, as well as spin-3/2 isosinglet fermions, which have been advocated recently.

引用

页数：7

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