Title:
Exact form factors of the O(N) σ-model
Author(s):
Babujian, Hrachya M.; Foerster, Angela; Karowski, Michael
Year of publication:
2013
Available Date:
2014-03-17T11:45:29.719Z
Abstract:
A general form factor formula for the O(N ) σ-model is constructed and applied
to several operators. The large N limits of these form factors are computed
and compared with the 1/N expansion of the O(N ) σ-model in terms of Feynman
graphs and full agreement is found. In particular, O(3) and O(4) form factors
are discussed. For the O(3) σ-model several low particle form factors are
calculated explicitly.
Part of Identifier:
ISSN (print): 1029-8479
Keywords:
Exact S-Matrix
Form Factors
Bethe Ansatz
Integrable Field Theories
Sigma Models
DDC-Classification:
530 Physik
Publication Type:
Wissenschaftlicher Artikel
Also published in:
Journal of High Energy Physics. - 2013 (2013), 11, Artikel Nr. 89/1-53
URL of the Original Publication:
DOI of the Original Publication:
Department/institution:
Physik
Institut für Theoretische Physik
Comments:
Der Artikel wurde in einer Open-Access-Zeitschrift publiziert.
