• Corpus ID: 212657389

Heavy Thermal Relics from Zombie Collisions

@article{Kramer2020HeavyTR,
  title={Heavy Thermal Relics from Zombie Collisions},
  author={Eric David Kramer and Eric Kuflik and Noam Levi and Nadav Joseph Outmezguine and Joshua T. Ruderman},
  journal={arXiv: High Energy Physics - Phenomenology},
  year={2020}
}
We propose a new thermal freezeout mechanism which results in dark matter masses exceeding the unitarity bound by many orders of magnitude, without violating perturbative unitarity or modifying the standard cosmology. The process determining the relic abundance is $\chi \zeta^\dagger \to \zeta \zeta$, where $\chi$ is the dark matter candidate. For $ m_\zeta < m_\chi < 3 m_\zeta$, $\chi$ is cosmologically long-lived and scatters against the exponentially more abundant $\zeta$. Therefore, such a… 

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