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arxiv 1102.2340 v3 pith:TRHBED6Z submitted 2011-02-11 hep-ph astro-ph.CO

Running-Mass Inflation Model and Primordial Black Holes

classification hep-ph astro-ph.CO
keywords runningblackformationholesindexinflationinflatonlong-lived
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We revisit the question whether the running-mass inflation model allows the formation of Primordial Black Holes (PBHs) that are sufficiently long-lived to serve as candidates for Dark Matter. We incorporate recent cosmological data, including the WMAP 7-year results. Moreover, we include "the running of the running" of the spectral index of the power spectrum, as well as the renormalization group "running of the running" of the inflaton mass term. Our analysis indicates that formation of sufficiently heavy, and hence long-lived, PBHs still remains possible in this scenario. As a by-product, we show that the additional term in the inflaton potential still does not allow significant negative running of the spectral index.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Blue-tilted Runnings and the JWST Early Galaxy Tension

    astro-ph.CO 2026-05 unverdicted novelty 4.0

    A blue-tilted spectrum with running parameters α_s ≈ 0.2 and β_s ≈ 0.2 resolves the JWST early-galaxy abundance tension at 1σ in a joint CMB analysis.

  2. Blue-tilted Runnings and the JWST Early Galaxy Tension

    astro-ph.CO 2026-05 unverdicted novelty 4.0

    Blue-tilted running spectrum with α_s ≈ 0.02 and β_s ≈ 0.02 resolves JWST early galaxy tension at 1σ in joint CMB analysis.