Abstract
We revisit the question whether the running-mass inflation model allows theformation of Primordial Black Holes (PBHs) that are sufficiently long-livedto serve as candidates for Dark Matter. We incorporate recent cosmologicaldata, including the WMAP 7-year results. Moreover, we include ``the runningof the running'' of the spectral index of the power spectrum, as well as therenormalization group ``running of the running'' of the inflaton massterm. Our analysis indicates that formation of sufficiently heavy, and hencelong-lived, PBHs still remains possible in this scenario. As a by-product,we show that the additional term in the inflaton potential still does notallow significant negative running of the spectral index.
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