Top mass from asymptotic safety

被引：94

作者：

Eichhorn, Astrid ^{[1
]}

Held, Aaron ^{[1
]}

机构：

[1] Heidelberg Univ, Inst Theoret Phys, Philosophenweg 16, D-69120 Heidelberg, Germany

来源：

PHYSICS LETTERS B | 2018年 / 777卷

关键词：

LANDAU POLE PROBLEM; HIGGS-BOSON MASS; RENORMALIZATION FLOW; EVOLUTION EQUATION; GAUGE HIERARCHY; UPPER-BOUNDS; TRIVIALITY; FERMIONS;

D O I：

10.1016/j.physletb.2017.12.040

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discover that asymptotically safe quantum gravity could predict the top-quark mass. For a broad range of microscopic gravitational couplings, quantum gravity could provide an ultraviolet completion for the Standard Model by triggering asymptotic freedom in the gauge couplings and bottom Yukawa and asymptotic safety in the top-Yukawa and Higgs-quartic coupling. We find that in a part of this range, a difference of the top and bottom mass of approximately 170 GeV is generated and the Higgs mass is determined in terms of the top mass. Assuming no new physics below the Planck scale, we construct explicit Renormalization Group trajectories for Standard Model and gravitational couplings which link the transplanckian regime to the electroweak scale and yield a top pole mass of M-t,M-pole approximate to 171 GeV. (c) 2017 The Authors. Published by Elsevier B.V.

引用

页码：217 / 221

页数：5

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