http://arxiv.org/abs/2304.04065
We consider Galileon inflation in the Effective Field Theory (EFT) framework and examine the possibility for PBH formation during slow roll (SR) to ultra slow roll (USR) transitions. We show that loop corrections to the power spectrum, in this case, do not impose additional constraints on the masses of PBHs produced. We indicate that the remarkable non-renormalization property of Galileon due to generalized shift symmetry is responsible for protecting PBH formation from quantum loop corrections.
S. Choudhury, S. Panda and M. Sami
Tue, 11 Apr 23
26/63
Comments: 44 pages, 2 figures, Comments are welcome