2 papers
hep-ph2026
Cosmological gravitational particle production in multifield inflation
Edward W. Kolb, Sarunas Verner, Jingyuan Wang
We study cosmological gravitational particle production (CGPP) of dark matter in two-field inflationary backgrounds with both flat and curved field-space geometries. As a concrete…
hep-ph2026
Creation of spin-3/2 dark matter via cosmological gravitational particle production
Edward W. Kolb, Andrew J. Long, Evan McDonough +1
We study the cosmological gravitational particle production (CGPP) of spin-3/2 particles during and after cosmic inflation, and map the parameter space that can realize the observe…