On Axion Reheating in the String Landscape. (arXiv:1903.04495v1 [hep-th])
<a href="http://arxiv.org/find/hep-th/1/au:+Halverson_J/0/1/0/all/0/1">James Halverson</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Long_C/0/1/0/all/0/1">Cody Long</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Nelson_B/0/1/0/all/0/1">Brent Nelson</a>, <a href="http://arxiv.org/find/hep-th/1/au:+Salinas_G/0/1/0/all/0/1">Gustavo Salinas</a>
We demonstrate that asymmetric reheating arises in a large ensemble of string
compactifications with many axions and gauged dark sectors. This phenomenon may
help avoid numerous cosmological problems that may arise if the sectors were
reheated democratically. Distributions of couplings are presented for two
classes of axion reheatons, both of which exhibit very small couplings to most
of the gauge sectors. In one class, ratios of reheating couplings and also
preferred gauge groups are frequently determined by local regions in the string
geometry.
We demonstrate that asymmetric reheating arises in a large ensemble of string
compactifications with many axions and gauged dark sectors. This phenomenon may
help avoid numerous cosmological problems that may arise if the sectors were
reheated democratically. Distributions of couplings are presented for two
classes of axion reheatons, both of which exhibit very small couplings to most
of the gauge sectors. In one class, ratios of reheating couplings and also
preferred gauge groups are frequently determined by local regions in the string
geometry.
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