Cosmological gravitational particle production of stable spin-3/2 raritrons yields the observed dark matter abundance across wide ranges of mass relative to the Hubble scale at the end of inflation.
Completely dark matter from rapid-turn multifield inflation,
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Negative field-space curvature enhances post-inflationary Ricci scalar oscillations and boosts CGPP dark matter number density by up to an order of magnitude relative to flat field-space cases, with nontrivial relic abundance dependence on spectator mass and reheating temperature.
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Creation of spin-3/2 dark matter via cosmological gravitational particle production
Cosmological gravitational particle production of stable spin-3/2 raritrons yields the observed dark matter abundance across wide ranges of mass relative to the Hubble scale at the end of inflation.
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Cosmological gravitational particle production in multifield inflation
Negative field-space curvature enhances post-inflationary Ricci scalar oscillations and boosts CGPP dark matter number density by up to an order of magnitude relative to flat field-space cases, with nontrivial relic abundance dependence on spectator mass and reheating temperature.