Gravitational production of super-Hubble-mass particles: an analytic approach
Journal Article
·
· Journal of High Energy Physics (Online)
- Univ. of Wisconsin, Madison, WI (United States); University of Chicago
- Univ. of Chicago, IL (United States). Enrico Fermi Inst., and Kavli Inst. for Cosmological Physics
- Univ. of Michigan, Ann Arbor, MI (United States)
Through a mechanism similar to perturbative particle scattering, particles of mass mχ larger than the Hubble expansion rate Hinf during inflation can be gravitationally produced at the end of inflation without the exponential suppression powers of exp(-mχ/Hinf). Here we develop an analytic formalism for computing particle production for such massive particles. We apply our formalism to specific models that have been previously been studied only numerically, and we find that our analytical approximations reproduce those numerical estimates well.
- Research Organization:
- Univ. of Chicago, IL (United States); Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
- Grant/Contract Number:
- SC0009924; SC0017647; SC0007859
- OSTI ID:
- 1593927
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 1 Vol. 2019; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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