Conformally soft theorem in gauge theory
By M. Pate, A. Raclariu, Andrew Strominger. Physical Review D, 2019
144 citations recorded by the source corpus.
Asymptotic particle states in four-dimensional celestial scattering amplitudes are labelled by their $SL(2,\mathbb{C})$ Lorentz/conformal weights $(h,\bar{h})$ rather than the usual energy-momentum four-vector. These boost eigenstates involve a superposition of all energies. As such, celestial gluon (or photon) scattering cannot obey the usual (energetically) soft theorems. In this paper we show that tree-level celestial gluon scattering, in theories with sufficiently soft UV behavior, instead obeys conformally soft theorems involving $h \to 0$ or $\bar{h} \to 0$. Unlike the energetically soft theorem, the conformally soft theorem cannot be derived from low-energy effective field theory.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/8e337a6c2c37b82babf4d0113c7acaa43d157a9b
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
- A. Guevara
- M. Pate
- E. Himwich
- Andrew Strominger
- Sabrina Pasterski
- B. McInnes
- Dionysios Anninos
- Ashoke Sen
In Nuclear and High Energy Physics
- M. Pate
- A. Guevara
- E. Himwich
- Andrew Strominger
- Sabrina Pasterski
- Alok Laddha
- Miguel Campiglia
- J. Vines
In Statistical and Nonlinear Physics
- M. Pate
- A. Guevara
- E. Himwich
- Andrew Strominger
- Sabrina Pasterski
- Alok Laddha
- Ashoke Sen
- Miguel Campiglia
Citations in the corpus
- Holographic symmetry algebras for gauge theory and gravity (2021, methodology): “In 4D nonabelian gauge theory with group G, the leading soft theorem implies a standard closed 2D celestial G-current algebra [24,38,43,46,67].”