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A Topological Pseudodefects of a Supersymmetric SO(10) Model

  1. Sep 26, 2018 #1
    Here they discuss supersymmetry, SO(10) GUT, inflation, and domain walls.

    Topological Pseudodefects of a Supersymmetric SO(10) Model and Cosmology


    Topological pseudodefects of a supersymmetric SO(10)model and cosmology
    Ila Garg and Urjit A. Yajnik
    Phys. Rev. D 98, 063523 (2018) – Published 20 September 2018

    Obtaining realistic supersymmetry preserving vacua in the minimal renormalizable supersymmetric Spin(10) GUT model introduces considerations of the nontrivial topology of the vacuum manifold. The D-parity of low energy unification schemes gets lifted to a one-parameter subgroup U(1)D of Spin(10). Yet, the choice of the fields signaling spontaneous symmetry breaking leads to disconnected subsets in the vacuum manifold related by the D-parity. The resulting domain walls, existing due to topological reasons but not stable, are identified as topological pseudodefects. We obtain a class of one-parameter paths connecting D-parity flipped vacua and compute the energy barrier height along the same. We consider the various patterns of symmetry breaking which can result in either intermediate scale gauge groups or a supersymmetric extension of the standard model. If the onset of inflation is subsequent to grand unified theory (GUT) breaking, as could happen also if inflation is naturally explained by the same GUT, the existence of such pseudo-defects can leave signatures in the CMB. Specifically, this could have an impact on the scale invariance of the CMB fluctuations and Large Scale Structure data at the largest scale.
  2. jcsd
  3. Oct 2, 2018 #2
    Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
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