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Published in

Elsevier, Nuclear Physics B, 3(801), p. 187-206, 2008

DOI: 10.1016/j.nuclphysb.2008.01.025

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Form factors of boundary exponential operators in the sinh-Gordon model

Journal article published in 2008 by G. Takács ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Using the recently introduced boundary form factor bootstrap equations, the form factors of boundary exponential operators in the sinh-Gordon model are constructed. We also give a general method to evaluate the ultraviolet properties of boundary correlators by extending the bulk cumulant expansion to the boundary case. As an application, the ultraviolet scaling dimension and the normalization of the operators corresponding to the form factor solutions are checked against previously known results for boundary exponential operators. The construction presented in this paper can be applied to determine form factors of relevant primary boundary operators in general integrable boundary quantum field theories.