2021/05/17 by Árpád Hegedűs, Hegedűs, Árpád
Physics and Astronomy · Mathematics · #Quantum Chromodynamics and Particle Interactions #Black Holes and Theoretical Physics #Algebraic structures and combinatorial models
paper · pdf · doi:10.48550/arxiv.2105.07713
In this paper we derive from field theory a L "uscher-formula, which gives\nthe leading exponentially small in volume corrections to the 1-particle\nform-factors in non-diagonally scattering integrable quantum field theories.\nOur final formula is expressed in terms of appropriate expressions of 1- and\n3-particle form-factors, and can be considered as the generalization of\nprevious results obtained for diagonally scattering bosonic integrable quantum\nfield theories. Since our formulas are also valid for fermions and operators\nwith non-zero Lorentz-spin, we demonstrated our results in the Massive Thirring\nModel, and checked our formula against 1-loop perturbation theory finding\nperfect agreement.\n