Gravitational corrections to the scattering of scalar particles

被引：3
|
作者：
Lehum, A. C. [1 ,2 ]
机构：
[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
[2] Univ Fed Rio Grande do Norte, Escola Ciencias & Tecnol, BR-59072970 Natal, RN, Brazil
来源：
PHYSICAL REVIEW D | 2013年 / 88卷 / 10期
基金：
巴西圣保罗研究基金会;
关键词：
EFFECTIVE-FIELD THEORY; NONRENORMALIZABILITY;
D O I：
10.1103/PhysRevD.88.104030
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We evaluated the scattering amplitude of neutral scalar particles at one-loop order in the context of effective field theory of quantum gravity in the presence of a cosmological constant. Our study suggests that quantum gravitational corrections induce an asymptotic freedom behavior to the lambda phi(4) theory, for a positive cosmological constant. This result hints that a complete theory of quantum gravity can play an important role in avoiding the issue of triviality in quantum field theory.
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页数：8
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