MHV graviton scattering amplitudes and current algebra on the celestial sphere
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
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
Positive helicity Einstein-Yang-Mills amplitudes from the double copy method
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.046008
Abstract: All positive helicity four-point gluon-graviton amplitudes in Einstein-Yang-Mills theory coupled to a dilaton and axion field are computed at the leading one-loop order using colour-kinematics duality. In particular, all relevant contributions in the gravitational and… read more here.
Keywords: einstein yang; positive helicity; helicity einstein; yang mills ... See more keywords