Baryogenesis by quantum gravity

被引：7

作者：

Hamada, Ken-JI ^{[1
,2
]}

Minamizaki, Azusa ^{[3
]}

Sugamoto, Akio ^{[3
]}

机构：

[1] KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan

[2] Grad Univ Adv Studies Sokendai, Dept Particle & Nucl Phys, Tsukuba, Ibaraki 3050801, Japan

[3] Ochanomizu Univ, Dept Phys, Bunkyo Ku, Tokyo 1128610, Japan

来源：

MODERN PHYSICS LETTERS A | 2008年 / 23卷 / 04期

关键词：

Baryon asymmetry; spacetime transition; quantum gravity;

D O I：

10.1142/S021773230802639X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A novel mechanism of baryogenesis is proposed on the basis of the phase transition from the conformal invariant spacetime to the Einstein spacetime in quantum gravity. Strong-coupling gravitational excitations with dynamical mass about 10(17) GeV are generated at the transition. They eventually decay into ordinary matters. We show that the low energy effective interactions between the gravitational potential describing the excitation and the non-conserving matter currents by the axial anomalies can explain matter asymmetry out of thermal equilibrium.

引用

页码：237 / 244

页数：8

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