Testing CPT symmetry with CMB measurements: Update after WMAP5 | |
Xia JQ(夏俊卿)![]() ![]() ![]() ![]() ![]() | |
2008 | |
发表期刊 | ASTROPHYSICAL JOURNAL LETTERS (IF:5.522[JCR-2016],4.914[5-Year]) |
卷号 | 679期号:2页码:L61-L63 |
通讯作者 | [Xia, Jun-Qing ; Zhang, Xinmin] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Li, Hong] Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China ; [Zhao, Gong-Bo] Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada |
文章类型 | Article |
摘要 | In this Letter we update our previous results on the test of CPT symmetry with cosmic microwave background (CMB) measurements. A CPT-violating interaction in the photon sector L-CS similar to p(mu)A(nu)(F) over tilde (mu nu) gives rise to a rotation of the polarization vectors of the propagating CMB photons. Recently the WMAP group used the newly released polarization data of WMAP5 to measure this rotation angle Delta alpha and obtained Delta alpha = -1.7 degrees +/- 2.1 degrees (1 sigma). However, in their analysis the BOOMERANG 2003 data are not included. Here we revisit this issue by combining the full data of WMAP5 and BOOMERANG 2003 angular power spectra for the measurement of this rotation angle and find that Delta alpha = -2.6 degrees +/- 1.9 degrees at a 68% confidence level. |
关键词 | cosmic microwave background cosmological parameters cosmology : theory |
学科领域 | Astronomy & Astrophysics |
DOI | 10.1086/589447 |
URL | 查看原文 |
收录类别 | INSPIREHEP ; ADS |
语种 | 英语 |
WOS研究方向 | Astronomy & Astrophysics |
WOS类目 | Astronomy & Astrophysics |
WOS记录号 | WOS:000256722100001 |
ADS Bibcode | 2008ApJ...679L..61X |
ADS URL | https://ui.adsabs.harvard.edu/abs/2008ApJ...679L..61X |
ADS引文 | https://ui.adsabs.harvard.edu/abs/2008ApJ...679L..61X/citations |
INSPIRE ID | 781477 |
INSPIRE URL | https://inspirehep.net/literature/781477 |
引用统计 | 正在获取...
被引频次:46 [INSPIRE]
被引频次:43 [ADS]
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文献类型 | 期刊论文 |
条目标识符 | https://ir.ihep.ac.cn/handle/311005/240285 |
专题 | 粒子天体物理中心 |
作者单位 | 中国科学院高能物理研究所 |
第一作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | Xia JQ,Zhang XM,Xia, JQ,et al. Testing CPT symmetry with CMB measurements: Update after WMAP5[J]. ASTROPHYSICAL JOURNAL LETTERS,2008,679(2):L61-L63. |
APA | 夏俊卿,张新民,Xia, JQ,Li, H,Zhao, GB,&Zhang, XM.(2008).Testing CPT symmetry with CMB measurements: Update after WMAP5.ASTROPHYSICAL JOURNAL LETTERS,679(2),L61-L63. |
MLA | 夏俊卿,et al."Testing CPT symmetry with CMB measurements: Update after WMAP5".ASTROPHYSICAL JOURNAL LETTERS 679.2(2008):L61-L63. |
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