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Yi, Zhu; Zhu, Zong-Hong
Journal of cosmology and astroparticle physics, 05/2022, Letnik: 2022, Številka: 5Journal Article
Abstract 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.
