Graviton mass constraint from CMB
N. Malsawmtluangi, P.K.Suresh
TL;DR
This paper investigates how primordial massive gravitational waves influence the CMB's BB-mode spectrum, using observational data to constrain the possible mass range of primordial gravitons across various inflation models.
Contribution
It provides new constraints on the mass of primordial gravitons by analyzing their effects on CMB polarization spectra with current observational data.
Findings
Constraints on the lower and upper bounds of primordial graviton mass.
Implications for inflation models based on CMB polarization data.
Refined limits using BICEP2/Keck Array and Planck data.
Abstract
The effect of primordial massive gravitational waves on the BB-mode correlation angular power spectrum of CMB is studied for several inflation models. The angular power spectrum with the BICEP2/Keck Array and Planck joint data suggests further constraint on the lower and upper bounds on the mass of primordial gravitons
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Taxonomy
TopicsCosmology and Gravitation Theories · Black Holes and Theoretical Physics · Geophysics and Gravity Measurements