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SUMMARY:Signatures of cosmic (super-)string networks with Y-junctions? - D
 aniele Steer\, APC\, University Paris 7
DTSTART:20120213T130000Z
DTEND:20120213T140000Z
UID:TALK35347@talks.cam.ac.uk
CONTACT:Dr Sebastien Renaux-Petel
DESCRIPTION:Cosmic superstrings are line-like objects of cosmic size which
  are predicted to form at the end of brane inflation in a number of string
  motivated models. As opposed to their field theory counterparts ("standar
 d" cosmic strings)\, cosmic superstrings are thought to exist in different
  varieties\, with a spectrum of tensions\; the different strings types can
  meet at Y-junctions\; and strings interact with each-other and themselves
  in new ways. These different tensions and interactions depend on the para
 meters of the underling superstring theory\, namely $\\mu_F$ and $g_s$\, t
 he fundamental string tension and coupling. Observational signatures of co
 smic superstrings will therefore depend on $(\\mu_F\, g_s)$\, with differe
 nt signatures being sensitive to different combinations of these parameter
 s. Therefore the hope is that via (at least two) observations\, the parame
 ters $\\mu_F$ and $g_s$ could be pinned down. In this talk\, after a brief
  discussion of the evolution of cosmic superstring networks with junctions
 \, I will focus on their GW and CMB signatures (particularly discussing ho
 w these differ from those of "standard" cosmic strings). I will show how t
 hese signatures depend on the underlying parameters.\n\n
LOCATION:CMS\, Pav.B\, CTC Common Room (B1.19)
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