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Title: Gravitational production of super-Hubble-mass particles: an analytic approach

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2]; ORCiD logo [3]
  1. Univ. of Wisconsin, Madison, WI (United States); University of Chicago
  2. Univ. of Chicago, IL (United States). Enrico Fermi Inst., and Kavli Inst. for Cosmological Physics
  3. 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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Cited By (7)

Production of purely gravitational dark matter: the case of fermion and vector boson journal July 2019
Gravitational particle creation for dark matter and reheating journal February 2019
Production of Z bosons and neutrinos in early universe journal June 2019
The Peebles–Vilenkin quintessential inflation model revisited journal June 2019
Production of purely gravitational dark matter: the case of fermion and vector boson text January 2019
Gravitational particle creation for dark matter and reheating text January 2018
Production of Purely Gravitational Dark Matter: The Case of Fermion and Vector Boson text January 2019

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