Source:http://linkedlifedata.com/resource/pubmed/id/19518694
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
16
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| pubmed:dateCreated |
2009-6-12
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| pubmed:abstractText |
We constrain parity-violating interactions to the surface of last scattering using spectra from the QUaD experiment's second and third seasons of observations by searching for a possible systematic rotation of the polarization directions of cosmic microwave background photons. We measure the rotation angle due to such a possible "cosmological birefringence" to be 0.55 degrees +/-0.82 degrees (random) +/-0.5 degrees (systematic) using QUaD's 100 and 150 GHz temperature-curl and gradient-curl spectra over the spectra over the multipole range 200<l<2000, consistent with null, and constrain Lorentz-violating interactions to <2 x 10;{-43} GeV (68% confidence limit). This is the best constraint to date on electrodynamic parity violation on cosmological scales.
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| pubmed:language |
eng
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| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
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| pubmed:month |
Apr
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| pubmed:issn |
0031-9007
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| pubmed:author |
pubmed-author:AdiTT,
pubmed-author:BockJJ,
pubmed-author:BowdenMM,
pubmed-author:BrownM LML,
pubmed-author:CahillGG,
pubmed-author:CastroP GPG,
pubmed-author:ChurchSS,
pubmed-author:CulverhouseTT,
pubmed-author:FriedmanR BRB,
pubmed-author:GangiSS,
pubmed-author:GearW KWK,
pubmed-author:GuptaSS,
pubmed-author:HinderksJJ,
pubmed-author:KovacJJ,
pubmed-author:LangeA EAE,
pubmed-author:LeitchEE,
pubmed-author:MelhuishS JSJ,
pubmed-author:MemariYY,
pubmed-author:MurphyJ AJA,
pubmed-author:O'SullivanCC,
pubmed-author:OrlandoAA,
pubmed-author:PiccirilliFF,
pubmed-author:PrykeCC,
pubmed-author:QUaD Collaboration,
pubmed-author:RajguruNN,
pubmed-author:RusholmeBB,
pubmed-author:SchwarzRR,
pubmed-author:TaylorA NAN,
pubmed-author:ThompsonK LKL,
pubmed-author:TurnerA HAH,
pubmed-author:WuE Y SEY,
pubmed-author:ZemcovMM
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| pubmed:issnType |
Print
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| pubmed:day |
24
|
| pubmed:volume |
102
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
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| pubmed:pagination |
161302
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| pubmed:year |
2009
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| pubmed:articleTitle |
Parity violation constraints using cosmic microwave background polarization spectra from 2006 and 2007 observations by the QUaD polarimeter.
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| pubmed:affiliation |
Kavli Institute for Particle Astrophysics and Cosmology and Department of Physics, Stanford University, Stanford, California 94305, USA. e2wu@stanford.edu
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| pubmed:publicationType |
Journal Article
|