The momentum kernel of gauge and gravity theories

We derive an explicit formula for factorizing an n -point closed string amplitude into open string amplitudes. Our results are phrased in terms of a momentum kernel which in the limit of infinite string tension reduces to the corresponding field theory kernel. The same momentum kernel encodes the mo...

Full description

Saved in:
Bibliographic Details
Published inThe journal of high energy physics Vol. 2011; no. 1
Main Authors Bjerrum-Bohr, N. E. J., Damgaard, Poul H., Søndergaard, Thomas, Vanhove, Pierre
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.01.2011
Springer Nature B.V
Subjects
Amplitudes
Classical and Quantum Gravitation
Color
Elementary Particles
Field theory
Gauge theory
Gravitation
High energy physics
Kernels
Momentum
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Relativity Theory
String Theory
Strings
Yang-Mills theory
Superstrings and Heterotic Strings
Models of Quantum Gravity
Supersymmetric gauge theory
Online AccessGet full text

Cover

More Information
Summary:We derive an explicit formula for factorizing an n -point closed string amplitude into open string amplitudes. Our results are phrased in terms of a momentum kernel which in the limit of infinite string tension reduces to the corresponding field theory kernel. The same momentum kernel encodes the monodromy relations which lead to the minimal basis of color-ordered amplitudes in Yang-Mills theory. There are interesting consequences of the momentum kernel pertaining to soft limits of amplitudes. We also comment on surprising links between gravity and certain combinations of kinematic and color factors in gauge theory.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP01(2011)001