The nested SU(N) off-shell Bethe ansatz and exact form factors

Abstract

The form factor equations are solved for an SU(N) invariant S-matrix under the assumption that the anti-particle is identified with the bound state of N-1 particles. The solution is obtained explicitly in terms of the nested off-shell Bethe ansatz where the contribution from each level is written in terms of multiple contour integrals.

This work is dedicated to the 75th anniversary of H. Bethe's foundational work on the Heisenberg chain

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• Exact form factors of the SU(N) Gross-Neveu model and 1/N expansion
• Comments on World-Sheet Form Factors in AdS/CFT
• Exact form factors of the O(N) $\sigma$-model
• Summing Planar Diagrams by an Integrable Bootstrap II
• Summing Planar Diagrams by an Integrable Bootstrap
• Correlation Functions of the SU(infinity) Principal Chiral Model
• Bethe Ansatz and exact form factors of the O(N) Gross Neveu-model
• Asymptotic behaviour of two-point functions in multi-species models
• A study of integrable form factors in massless relativistic AdS_3
• Nontrivial Thermodynamics in 't Hooft's Large-$N$ Limit
• Free field representation of the ZF algebra of the SU(N)xSU(N) PCF model
• A study of integrable form factors in massless relativistic $Ad{S}_2$
• Asymptotic factorization of n-particle SU(N) form factors