Can the Higgs still account for the g-2 anomaly?

被引：1

作者：

Abu-Ajamieh, Fayez ^{[1
]}

Vempati, Sudhir K. ^{[1
]}

机构：

[1] Indian Inst Sci, Ctr High Energy Phys, Bangalore 560012, India

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2023年 / 38卷 / 20期

关键词：

Muon magnetic moment; effective field theories; Higgs couplings; VACUUM POLARIZATION CONTRIBUTIONS; MAGNETIC-MOMENT; MUON G-2; MESON CONTRIBUTIONS; LIGHT; ALPHA(M-Z(2)); LEPTONS; MASS; EDM;

D O I：

10.1142/S0217751X23500914

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In this paper, we use an Effective Field Theory (EFT) approach to evaluate the viability of the Higgs to account for the g-2 anomaly. Although the SM contribution of the Higgs to the muon's magnetic dipole moment is negligible, using a bottom-up EFT, we show that given the current level of experimental limits on the Higgs sector, the Higgs can still yield a viable solution to the g-2 anomaly if its couplings to the rest of the SM particles are allowed to deviate from their SM predictions. Such a solution would only require an O(1) fine-tuning. Further, applying unitarity arguments, we show that such a solution would indicate a scale of New Physics (NP) of similar to 5-8TeV, which could be lowered to similar to 3.4-4 TeV if the Higgs couplings to the W and Z are assumed to conform to their SM predictions. We show that such a scenario could yield significant enhancement to the di-Higgs production in muon colliders, thus providing further motivation for its consideration. A key takeaway of this study is to highlight the importance of measuring the mu mu hh coupling in future experiments.

引用

页数：17

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