# Zwanziger's pairwise little group on the celestial sphere

@inproceedings{Lippstreu2021ZwanzigersPL, title={Zwanziger's pairwise little group on the celestial sphere}, author={Luke Lippstreu}, year={2021} }

We generalize Zwanziger’s pairwise little group to include a boost subgroup. We do so by working in the celestial sphere representation of scattering amplitudes. We propose that due to late time soft photon and graviton exchanges, matter particles in the asymptotic states in massless QED and gravity transform under the Poincaré group with an additional pair of pairwise celestial representations for each pair of matter particles. We demonstrate that the massless abelian and gravitational… Expand

#### 2 Citations

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