Exact form factors of the O(N) σ-model

dc.contributor.author	Babujian, Hratchya M.	pt_BR
dc.contributor.author	Foerster, Angela	pt_BR
dc.contributor.author	Karowski, Michael	pt_BR
dc.date.accessioned	2014-06-28T02:07:03Z	pt_BR
dc.date.issued	2013	pt_BR
dc.identifier.issn	1029-8479	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/96960	pt_BR
dc.description.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.	en
dc.format.mimetype	application/pdf	pt_BR
dc.language.iso	eng	pt_BR
dc.relation.ispartof	The journal of high energy physics. Trieste. No. 11 (Nov. 2013), 089, 53 p.	pt_BR
dc.rights	Open Access	en
dc.subject	Exact s-matrix	en
dc.subject	Teoria axiomatica de campos	pt_BR
dc.subject	Teoria de campos não-lineares	pt_BR
dc.subject	Bethe ansatz	en
dc.subject	Integrable field theories	en
dc.subject	Grupos O	pt_BR
dc.subject	Sigma models	en
dc.title	Exact form factors of the O(N) σ-model	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	000917185	pt_BR
dc.type.origin	Estrangeiro	pt_BR

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