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arXiv · 1510.03595

Entropy production by domain wall decay in the NMSSM

Hironori Hattori·Tatsuo Kobayashi·Naoya Omoto·Osamu Seto
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Abstract

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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Hironori Hattori, Tatsuo Kobayashi, Naoya Omoto, Osamu Seto. 2015-10-13. Entropy production by domain wall decay in the NMSSM. https://doi.org/10.1103/physrevd.92.103518

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