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Entropy production by domain wall decay in the NMSSM

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 نشر من قبل Naoya Omoto
 تاريخ النشر 2015
  مجال البحث فيزياء
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We consider domain walls in the $Z_3$ symmetric NMSSM. The spontaneous $Z_3$ discrete symmetry breaking produces domain walls, and the stable domain walls are problematic. Thus, we assume the $Z_3$ symmetry is slightly but explicitly broken and the domain walls decay. Such a decay causes a large late-time entropy production. We study its cosmological implications on unwanted relics such as moduli, gravitino, LSP and axion.



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