Fingerprints of GeV scale right-handed neutrinos on inflationary gravitational waves and PTA data
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00581922" target="_blank" >RIV/68378271:_____/23:00581922 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0350073" target="_blank" >https://hdl.handle.net/11104/0350073</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.108.L091706" target="_blank" >10.1103/PhysRevD.108.L091706</a>
Alternative languages
Result language
angličtina
Original language name
Fingerprints of GeV scale right-handed neutrinos on inflationary gravitational waves and PTA data
Original language description
We show that the seesaw mechanisms that exhibit right-handed neutrino mass-dependent nonstandard postinflationary cosmology make blue-tilted inflationary gravitational waves (GWs) compatible with the recent findings of nanohertz stochastic GW background by the pulsar-timing arrays (PTAs) for high reheating temperatures. The right-handed neutrino (RHN) mass scale has to be O(GeV). Remarkably, such a scenario produces a correlated signature testable by the future LIGO run. In addition to contributing to the active neutrino masses, O(GeV) RHNs generate baryon asymmetry of the Universe via low scale leptogenesis. They can be searched for in collider experiments. Therefore, the recent detection by PTAs is not only exciting for GWs in the nanohertz range, it paves the way to test and constrain well-studied mechanisms, such as seesaws, with a low frequency and a correlated measurement of high-frequency GW spectral features, complementary to particle physics searches.
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
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/EF20_079%2F0017754" target="_blank" >EF20_079/0017754: International mobility MSCA-IF IV FZU</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
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
108
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
L091706
UT code for WoS article
001131850700016
EID of the result in the Scopus database
2-s2.0-85179832181