NANOGrav signal and LIGO-Virgo primordial black holes from the Higgs field

We show that the NANOGrav signal can come from the Higgs field with a noncanonical kinetic term in terms of the scalar induced gravitational waves. The scalar induced gravitational waves generated in our model are also detectable by space-based gravitational wave observatories. Primordial black hole...

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Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2022-05, Vol.2022 (5), p.46
Main Authors: Yi, Zhu, Zhu, Zong-Hong
Format: Article
Language:English
Subjects:
Black holes
Gravitational waves
gravitational waves / theory
inflation
LIGO (observatory)
Observatories
primordial black holes
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Summary:We show that the NANOGrav signal can come from the Higgs field with a noncanonical kinetic term in terms of the scalar induced gravitational waves. The scalar induced gravitational waves generated in our model are also detectable by space-based gravitational wave observatories. Primordial black holes with stellar masses that can explain LIGO-Virgo events are also produced. Therefore, the NANOGrav signal and the BHs in LIGO-Virgo events may both originate from the Higgs field.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2022/05/046