Testing CPT symmetry with CMB measurements: Update after WMAP5

doi:10.1086/589447

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	Testing CPT symmetry with CMB measurements: Update after WMAP5
	Xia JQ(夏俊卿); Zhang XM(张新民); Xia, JQ; Li, H; Zhao, GB; Zhang, XM
	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]
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.