Scale of quantum gravity

被引：69
|
作者：
Han, T
Willenbrock, S
机构：
[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA
[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
[3] Univ Calif Santa Barbara, Kavli Inst Theroret Phys, Santa Barbara, CA 93106 USA
[4] Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
来源：
PHYSICS LETTERS B | 2005年 / 616卷 / 3-4期
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
D O I：
10.1016/j.physletb.2005.04.040
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In the effective field theory of quantum gravitation coupled to N-s scalars, N-f fermions, and N-V vectors, tree unitarity is violated at an energy squared of E-CM(2) = 20(G(N)N)(-1), where N 2/3N(s) + N-f +4N(V) and G(N) is Newton's constant. This is 3 related to radiative corrections proportional to G(N)NE(2) (where E is the typical energy), due to loops of such particles. New physics must enter before E-CM approximate to 6 x 10(18) GeV in the standard model, and 4 x 10 18 GeV in the minimal supersymmetric standard model. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：215 / 220
页数：6
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