A bstract Classical soft graviton theorem gives the gravitational wave-form at future null
infinity at late retarded time u for a general classical scattering. The large u expansion has
three known universal terms: the constant term, the term proportional to 1/u and the term
proportional to ln u/u 2, whose coefficients are determined solely in terms of the momenta of
incoming and the outgoing hard particles, including the momenta carried by outgoing
gravitational and electromagnetic radiation produced during scattering. For the constant …

Classical soft graviton theorem gives the gravitational wave-form at future null infinity at late
retarded time u for a general classical scattering. The large u expansion has three known
universal terms: the constant term, the term proportional to 1/u and the term proportional to ln
u/u 2, whose coefficients are determined solely in terms of the momenta of incoming and the
outgoing hard particles, including the momenta carried by outgoing gravitational and
electromagnetic radiation produced during scattering. For the constant term, also known as …