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Title: Early Universe synthesis of asymmetric dark matter nuggets

Abstract

We compute the mass function of bound states of asymmetric dark matter - nuggets - synthesized in the early Universe. We apply our results for the nugget density and binding energy computed from a nuclear model to obtain analytic estimates of the typical nugget size exiting synthesis. We numerically solve the Boltzmann equation for synthesis including two-to-two fusion reactions, estimating the impact of bottlenecks on the mass function exiting synthesis. These results provide the basis for studying the late Universe cosmology of nuggets in a future companion paper.

Authors:
 [1];  [2];  [2]
  1. Whitman College, Walla Walla, WA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1420193
Alternate Identifier(s):
OSTI ID: 1435114
Grant/Contract Number:
AC02-05CH11231
Resource Type:
Journal Article: Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 3; Related Information: © 2018 authors.; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Gresham, Moira I., Lou, Hou Keong, and Zurek, Kathryn M. Early Universe synthesis of asymmetric dark matter nuggets. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.97.036003.
Gresham, Moira I., Lou, Hou Keong, & Zurek, Kathryn M. Early Universe synthesis of asymmetric dark matter nuggets. United States. doi:10.1103/PhysRevD.97.036003.
Gresham, Moira I., Lou, Hou Keong, and Zurek, Kathryn M. Mon . "Early Universe synthesis of asymmetric dark matter nuggets". United States. doi:10.1103/PhysRevD.97.036003.
@article{osti_1420193,
title = {Early Universe synthesis of asymmetric dark matter nuggets},
author = {Gresham, Moira I. and Lou, Hou Keong and Zurek, Kathryn M.},
abstractNote = {We compute the mass function of bound states of asymmetric dark matter - nuggets - synthesized in the early Universe. We apply our results for the nugget density and binding energy computed from a nuclear model to obtain analytic estimates of the typical nugget size exiting synthesis. We numerically solve the Boltzmann equation for synthesis including two-to-two fusion reactions, estimating the impact of bottlenecks on the mass function exiting synthesis. These results provide the basis for studying the late Universe cosmology of nuggets in a future companion paper.},
doi = {10.1103/PhysRevD.97.036003},
journal = {Physical Review D},
number = 3,
volume = 97,
place = {United States},
year = {Mon Feb 12 00:00:00 EST 2018},
month = {Mon Feb 12 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevD.97.036003

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