Journal
PHYSICS LETTERS B
Volume 733, Issue -, Pages 270-275Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2014.04.050
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Funding
- Council of Scientific and Industrial Research, India [09/093(0132)/2010]
- Lancaster-Manchester-Sheffield Consortium for Fundamental Physics under STFC [ST/J000418/1]
- STFC [ST/G00045X/1, ST/J000418/1, ST/L000520/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/J000418/1, ST/G00045X/1, ST/L000520/1] Funding Source: researchfish
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In this article we provide a new closed relationship between cosmic abundance of primordial gravitational waves and primordial blackholes that originated from initial inflationary perturbations for inflection-point models of inflation where inflation occurs below the Planck scale. The current Planck constraint on tensor-to-scalar ratio, running of the spectral tilt, and from the abundance of dark matter content in the universe, we can deduce a strict bound on the current abundance of primordial blackholes to be within a range, 9.99712 x 10(-3) < Omega(PBH)h(2) < 9.99736 x 10(-3). (C) 2014 The Authors. Published by Elsevier B.V.
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