IR finite graviton propagators in de Sitter spacetime Mir Faizal, Sudhaker Upadhyay and Bhabani Prasad Mandal Eur. Phys. J. C, 76 4 (2016) 189 Published online: 07 April 2016 DOI: 10.1140/epjc/s10052-016-4008-x