Form factors in the massless coset models su(2)_{k+1} \otimes su(2)_k /su(2)_{2k+1} - Part I

Details Form factors in the massless coset models su(2)_{k+1} \otimes su(2)_k /su(2)_{2k+1} - Part I Form factors in the massless coset models su(2)_{k+1} \otimes su(2)_k /su(2)_{2k+1} - Part I

2004-11-03

arxiv.org/abs/hep-th/0411043v2

Nucl.Phys. B714 (2005) 357-375

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, 4 eps figures, LaTeX; v2: non-unitary case k=-1 added (this extra result is not to be found in the published NPB ver

Scientific paper

10.1016/j.nuclphysb.2005.02.004

Massless flows between the coset model su(2)_{k+1} \otimes su(2)_k /su(2)_{2k+1} and the minimal model M_{k+2} are studied from the viewpoint of form factors. These flows include in particular the flow between the Tricritical Ising model and the Ising model. Form factors of the trace operator with an arbitrary number of particles are constructed, and numerical checks on the central charge are performed with four particles contribution. Large discrepancies with respect to the exact results are observed in most cases.

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