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Roaming form factors for the tricritical to critical Ising flow.

Horváth, D. and Dorey, P. and Takács, G. (2016) 'Roaming form factors for the tricritical to critical Ising flow.', Journal of high energy physics., 2016 (7). 051.

Abstract

We study the massless flows described by the staircase model introduced by Al.B. Zamolodchikov through the analytic continuation of the sinh-Gordon S-matrix, focusing on the renormalisation group flow from the tricritical to the critical Ising model. We show that the properly defined roaming limits of certain sinh-Gordon form factors are identical to the form factors of the order and disorder operators for the massless flow. As a by-product, we also construct form factors for a semi-local field in the sinh-Gordon model, which can be associated with the twist field in the ultraviolet limiting free massless bosonic theory.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Full text:(VoR) Version of Record
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1007/JHEP07(2016)051
Publisher statement:Open Access, © The Author(s) 2016. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Date accepted:03 July 2016
Date deposited:30 March 2017
Date of first online publication:11 July 2016
Date first made open access:No date available

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