Gravitational misalignment mechanism of Dark Matter production
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00540712" target="_blank" >RIV/68378271:_____/20:00540712 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1475-7516/2020/08/047" target="_blank" >https://doi.org/10.1088/1475-7516/2020/08/047</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1475-7516/2020/08/047" target="_blank" >10.1088/1475-7516/2020/08/047</a>
Alternative languages
Result language
angličtina
Original language name
Gravitational misalignment mechanism of Dark Matter production
Original language description
We consider Dark Matter composed of an oscillating singlet scalar field. On top of the mass term, the scalar is equipped with a potential spontaneously breaking Z2-symmetry. This potential dominates at early times and leads to the time-dependent expectation value of the scalar, which decreases in the expanding Universe. As it drops below some critical value, the symmetry gets restored, and the Dark Matter field starts to oscillate around zero. We arrange the spontaneous symmetry breaking through the interaction of the scalar with the Ricci curvature. In that way, superheavy Dark Matter can be produced at very early times. Depending on its mass, the production takes place at inflation (very large masses up to the Grand Unification scale), at preheating, or at radiation-dominated stage (masses 106−107 GeV).n
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Result continuities
Project
<a href="/en/project/GJ20-16531Y" target="_blank" >GJ20-16531Y: Implications of non-standard particle and gravitational models for cosmology.</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Cosmology and Astroparticle Physics
ISSN
1475-7516
e-ISSN
—
Volume of the periodical
2020
Issue of the periodical within the volume
8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
17
Pages from-to
1-17
UT code for WoS article
000590146600031
EID of the result in the Scopus database
2-s2.0-85090883032