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Title: Production of massive particles during reheating

Abstract

What is commonly called the reheat temperature, T[sub RH], is not the maximum temperature obtained after inflation. The maximum temperature is, in fact, much larger than T[sub RH]. As an application of this we consider the production of massive stable dark-matter particles of mass M[sub X] during reheating, and show that their abundance is suppressed as a power of T[sub RH]/M[sub X] rather than exp([minus]M[sub X]/T[sub RH]). We find that particles of mass as large as 2[times]10[sup 3] times the reheat temperature may be produced in interesting abundance. In addition to dark matter, our analysis is relevant for baryogenesis if the baryon asymmetry is produced by the baryon (or lepton) number violating decays of superheavy bosons, and also for relic ultra-high energy cosmic rays if decays of superheavy particles are responsible for the highest energy cosmic rays. [copyright] [ital 1999] [ital The American Physical Society]

Authors:
 [1];  [2];  [3]
  1. (NASA/Fermilab Astrophysics Center Fermilab National Accelerator Laboratory, Batavia, Illinois 60510-0500 (United States) Department of Physics, Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637-1433 (United States))
  2. (NASA/Fermilab Astrophysics Center Fermilab National Accelerator Laboratory, Batavia, Illinois 60510-0500 (United States) Department of Astronomy and Astrophysics, Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637-1433 (United States))
  3. (Theory Division, CERN, CH-1211 Geneva 23 (Switzerland))
Publication Date:
OSTI Identifier:
6470821
Alternate Identifier(s):
OSTI ID: 6470821
Resource Type:
Journal Article
Journal Name:
Physical Review, D
Additional Journal Information:
Journal Volume: 60:6; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BARYONS; COSMIC RAY SOURCES; COSMOLOGICAL MODELS; COSMOLOGY; INFLATIONARY UNIVERSE; NONLUMINOUS MATTER; PARTICLE PRODUCTION; ELEMENTARY PARTICLES; FERMIONS; HADRONS; MATHEMATICAL MODELS; MATTER 661300* -- Other Aspects of Physical Science-- (1992-)

Citation Formats

Chung, D.J., Kolb, E.W., and Riotto, A. Production of massive particles during reheating. United States: N. p., 1999. Web. doi:10.1103/PhysRevD.60.063504.
Chung, D.J., Kolb, E.W., & Riotto, A. Production of massive particles during reheating. United States. doi:10.1103/PhysRevD.60.063504.
Chung, D.J., Kolb, E.W., and Riotto, A. Wed . "Production of massive particles during reheating". United States. doi:10.1103/PhysRevD.60.063504.
@article{osti_6470821,
title = {Production of massive particles during reheating},
author = {Chung, D.J. and Kolb, E.W. and Riotto, A.},
abstractNote = {What is commonly called the reheat temperature, T[sub RH], is not the maximum temperature obtained after inflation. The maximum temperature is, in fact, much larger than T[sub RH]. As an application of this we consider the production of massive stable dark-matter particles of mass M[sub X] during reheating, and show that their abundance is suppressed as a power of T[sub RH]/M[sub X] rather than exp([minus]M[sub X]/T[sub RH]). We find that particles of mass as large as 2[times]10[sup 3] times the reheat temperature may be produced in interesting abundance. In addition to dark matter, our analysis is relevant for baryogenesis if the baryon asymmetry is produced by the baryon (or lepton) number violating decays of superheavy bosons, and also for relic ultra-high energy cosmic rays if decays of superheavy particles are responsible for the highest energy cosmic rays. [copyright] [ital 1999] [ital The American Physical Society]},
doi = {10.1103/PhysRevD.60.063504},
journal = {Physical Review, D},
issn = {0556-2821},
number = ,
volume = 60:6,
place = {United States},
year = {1999},
month = {9}
}