NANOGrav and other PTA signals and PBH from the modified Higgs inflation Kingman Cheung, C. J. Ouseph and Po-Yan Tseng Eur. Phys. J. C, 84 9 (2024) 906 Published online: 06 September 2024 DOI: 10.1140/epjc/s10052-024-13268-6