Cosmological CPT-violation, baryo/leptogenesis and CMB polarization

被引：33

作者：

Li, Mingzhe

Xia, Jun-Qing

Li, Hong

Zhang, Xinmin

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[2] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany

[3] Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China

来源：

PHYSICS LETTERS B | 2007年 / 651卷 / 5-6期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.physletb.2007.06.050

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this Letter we study the cosmological CPT-violation and its implications in baryo/leptogenesis and CMB polarization. We propose specifically a variant of the models of gravitational leptogenesis. By performing a global analysis with the Markov Chain Monte Carlo (MCMC) method, we find the current CMB polarization observations from the three-year WMAP (WMAP3) and the 2003 flight of BOOMERANG (1303) data provide a weak evidence for our model. However to verify and especially exclude this type of mechanism for baryo/leptogenesis with cosmological CPT-violation, the future measurements on CMB polarization from PLANCK and CMBpol are necessary. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：357 / 362

页数：6

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