BCFW-type recurrent relations for tree amplitudes of D=11 supergravity

Abstract

We propose the on-shell superfield description for tree amplitudes of D=11 supergravity and the BCFW (Britto-Cachazo-Feng-Witten)-type recurrent relations for these superamplitudes.

Comments: RevTeX, 4+1 pages, no figures. V2. Missed multiplier and symbol have been inserted in (40), and a few coefficients and misprints have been corrected. V3: (Close to the) version published in PRL, 118 (2017); contains a link to supplemental material