Form factors of boundary fields for A(2)-affine Toda field theory

Abstract

In this paper we carry out the boundary form factor program for the A(2)-affine Toda field theory at the self-dual point. The latter is an integrable model consisting of a pair of particles which are conjugated to each other and possessing two bound states resulting from the scattering processes 1 +1 -> 2 and 2+2-> 1. We obtain solutions up to four particle form factors for two families of fields which can be identified with spinless and spin-1 fields of the bulk theory. Previously known as well as new bulk form factor solutions are obtained as a particular limit of ours. Minimal solutions of the boundary form factor equations for all A(n)-affine Toda field theories are given, which will serve as starting point for a generalisation of our results to higher rank algebras.

24 pages LaTeX, 1 figure

References in corpus (3)

• On the boundary form factor program
• Boundary form factors of the sinh-Gordon model with Dirichlet boundary conditions at the self-dual point
• Spectrum of local boundary operators from boundary form factor bootstrap

Cited by in corpus (6)

• Boundary form factors in finite volume
• Form factors of boundary exponential operators in the sinh-Gordon model
• Higher particle form factors of branch point twist fields in integrable quantum field theories
• Finite temperature expectation values of boundary operators
• Explicit boundary form factors: the scaling Lee-Yang model
• Boundary Quantum Field Theories Perturbed by $\mathrm{T}\bar{\mathrm{T}}$: Towards a Form Factor Program