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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
DOI10.1086/589447
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 Bibcode2008ApJ...679L..61X
ADS URLhttps://ui.adsabs.harvard.edu/abs/2008ApJ...679L..61X
ADS引文https://ui.adsabs.harvard.edu/abs/2008ApJ...679L..61X/citations
INSPIRE ID781477
INSPIRE URLhttps://inspirehep.net/literature/781477
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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
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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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