On the leveldependence of WessZuminoWitten threepoint functions
Abstract
Threepoint functions of WessZuminoWitten models are investigated. In particular, we study the leveldependence of threepoint functions in the models based on algebras su(3) and su(4). We find a correspondence with BerensteinZelevinsky triangles. Using previous work connecting those triangles to the fusion multiplicities, and the GepnerWitten depth rule, we explain how to construct the full threepoint functions. We show how their leveldependence is similar to that of the related fusion multiplicity. For example, the concept of threshold level plays a prominent role, as it does for fusion.
 Publication:

Nuclear Physics B
 Pub Date:
 November 2001
 DOI:
 10.1016/S05503213(01)003376
 arXiv:
 arXiv:hepth/0105294
 Bibcode:
 2001NuPhB.616..517R
 Keywords:

 High Energy Physics  Theory;
 Mathematical Physics
 EPrint:
 24 pages, no figures