High Energy / Nuclear Theory / RIKEN Seminars

Laura Donnay, [HET Seminar], "Logarithmic soft graviton theorem from asymptotic symmetries"

Small Seminar Room (https://bnl.zoomgov.com/j/16010362754?pwd=Z1l1SS9JUDlyR1hSUHNyaDV1dTZHUT09)

Small Seminar Room



Abstract: Soft graviton theorems were recently shown to receive one-loop contributions that are logarithmic in the energy of the soft graviton. After a review of the deep connection between soft theorems and asymptotic symmetries, I will show that these logarithmic corrections are encoded in the Ward identity of the so-called superrotation symmetries of asymptotically flat spacetimes.