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hep-th2023★ 2 cited
Scalar-Graviton Amplitudes and Celestial Holography
Adam Ball, Shounak De, Akshay Yelleshpur Srikant +1
We compute scattering amplitudes involving one massive scalar and two, three, or four gravitons. We show that when the conformal dimension of the massive scalar is set to zero, the…
hep-th2023★ 1 cited
Dual resonant amplitudes from Drinfel'd twists
Rishabh Bhardwaj, Shounak De
We postulate the existence of a family of dual resonant, four-point tachyon amplitudes derived using invertible coproduct maps called Drinfel'd twists. A sub-family of these amplit…