MHV graviton scattering amplitudes and current algebra on the celestial sphere
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DOI: 10.1007/jhep02(2021)176
Abstract: Abstract The Cachazo-Strominger subleading soft graviton theorem for a positive helicity soft graviton is equivalent to the Ward identities for $$ \overline{\mathrm{SL}\left(2,\mathrm{\mathbb{C}}\right)} $$ SL 2 ℂ ¯ currents. This naturally gives rise to a $$… read more here.
Keywords: mhv graviton; graviton; celestial sphere; graviton scattering ... See more keywords