Cogenesis of baryon and dark matter with PBHs and the QCD axion
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00603631" target="_blank" >RIV/68378271:_____/24:00603631 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0364455" target="_blank" >https://hdl.handle.net/11104/0364455</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.110.115013" target="_blank" >10.1103/PhysRevD.110.115013</a>
Alternative languages
Result language
angličtina
Original language name
Cogenesis of baryon and dark matter with PBHs and the QCD axion
Original language description
With entropy injection, an early matter-dominated epoch (EMD) impels the axion decay constant fa toward larger values to produce correct axion dark matter (DM) abundance, thereby unfolding the low-mass axion (ma less than or similar to 10-5 eV) parameter space to be searched for in axion experiments. We implement this proposition in a scenario where fa and the leptogenesis scale in a seesaw mechanism are equivalent. We show that if, instead, the EMD is provided by evaporating ultralight primordial black holes (PBHs), the scenario becomes strikingly testable with gravitational wave (GW) background alongside the axion searches. In particular, while being consistent with correct axion DM abundance, the scale fa >= 1012 GeV, corresponding to the unflavored regime of leptogenesis with hierarchical right-handed neutrinos, can be probed with GW and axion experiments, which is otherwise not testable at neutrino or collider experiments. Additionally, axions produced from PBH evaporation can give rise to dark radiation within reach of future
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
10303 - Particles and field physics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
110
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
115013
UT code for WoS article
001385922200004
EID of the result in the Scopus database
2-s2.0-85212425565