NANOGrav signal and LIGO-Virgo Primordial Black Holes from Higgs inflation


Abstract in English

We show that the NANOGrav signal can come from the Higgs inflation 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.

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