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Searching for CPT violation with cosmic microwave background data from WMAP and BOOMERANG
Feng, B; Li, MZ; Xia JQ(夏俊卿); Zhang XM(张新民); Xia, JQ; Chen, XL; Zhang, XM
2006
发表期刊PHYSICAL REVIEW LETTERS
卷号96期号:22页码:221302
通讯作者Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China ; Univ Tokyo, Grad Sch Sci, Res Ctr Early Universe, Tokyo 1130033, Japan ; Inst Theoret Phys, D-69120 Heidelberg, Germany ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
摘要We search for signatures of Lorentz and CPT violations in the cosmic microwave background (CMB) temperature and polarization anisotropies by using the Wilkinson Microwave Anisotropy Probe (WMAP) and the 2003 flight of BOOMERANG (B03) data. We note that if the Lorentz and CPT symmetries are broken by a Chern-Simons term in the effective Lagrangian, which couples the dual electromagnetic field strength tensor to an external four-vector, the polarization vectors of propagating CMB photons will get rotated. Using the WMAP data alone, one could put an interesting constraint on the size of such a term. Combined with the B03 data, we found that a nonzero rotation angle of the photons is mildly favored: Delta alpha = -6.0(-4.0 -3.7)(+4.0 +3.9) deg(1, 2 sigma).
文章类型Article
学科领域Physics
DOI10.1103/PhysRevLett.96.221302
研究领域[WOS]Physics
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语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000238161400010
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被引频次:130[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/241035
专题理论物理室
粒子天体物理中心
多学科研究中心
作者单位中国科学院高能物理研究所
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Feng, B,Li, MZ,Xia JQ,et al. Searching for CPT violation with cosmic microwave background data from WMAP and BOOMERANG[J]. PHYSICAL REVIEW LETTERS,2006,96(22):221302.
APA Feng, B.,Li, MZ.,夏俊卿.,张新民.,Xia, JQ.,...&Zhang, XM.(2006).Searching for CPT violation with cosmic microwave background data from WMAP and BOOMERANG.PHYSICAL REVIEW LETTERS,96(22),221302.
MLA Feng, B,et al."Searching for CPT violation with cosmic microwave background data from WMAP and BOOMERANG".PHYSICAL REVIEW LETTERS 96.22(2006):221302.
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