Tuesday, January 15, 2013

1301.2856 (Robert H. Brandenberger)

Searching for Cosmic Strings in New Observational Windows    [PDF]

Robert H. Brandenberger
Cosmic strings are predicted in many models beyond the Standard Model of particle physics. In models which admit strings, a network of strings will inevitably be formed in a phase transition in the early universe and will persist to the present time. Strings leave behind distinctive features in cosmology. Searching for these signatures in new observational windows provides a way to constrain particle physics at the high energy scale and is thus complementary to searches for new physics at the low energy end, for example at the LHC. Specifically, I will discuss signatures of cosmic strings in cosmic microwave background polarization maps and in 21cm redshift surveys.
View original: http://arxiv.org/abs/1301.2856

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