Composite operators and form factors in ${\mathcal N} = 4$ SYM
نویسندگان
چکیده
منابع مشابه
A note on composite operators in N = 4 SYM
We discuss composite operators in N = 4 super Yang-Mills theory and their realisations as superfields on different superspaces. The superfields that realise various operators on analytic superspace may be different in the free, interacting and quantum theories. In particular, in the quantum theory, there is a restricted class of operators that can be written as analytic tensor superfields. This...
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In this paper we study surface operators in N = 4 supersymmetric Yang-Mills theory. We compute surface operator observables, such as the expectation value of surface operators, the correlation function of surface operators with local operators, and the correlation function of surface operators with Wilson and ’t Hooft loops. The calculations are performed using three different realizations of s...
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In the past few years, much attention has been given to studying the planar limit for the scattering amplitudes in the N=4 supersymmetric Yang–Mills (SYM) theory. It is believed that the hidden symmetries responsible for integrability properties of the N=4 SYM theory completely fix the structure of the amplitudes (the S-matrix of the theory) [1]. In particular, this is manifested in the fact th...
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The properties of gauge-invariant composite operators and their correlation functions in N = 4 SYM are discussed in the analytic superspace formalism. A complete classification of the different types of operators in the theory is given. Operators can be either protected or unprotected according to whether they do not or do have anomalous dimensions, and the analytic superspace formalism allows ...
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We consider the low energy effective action corresponding to the 1-loop, planar, dilatation operator in the scalar sector of N = 4 SU(N) SYM theory. For a general class of non-holomorphic “long” operators, of bare dimension L ≫ 1, it is a sigma model action with 8-dimensional target space and agrees with a limit of the phase-space string sigma model action describing generic fast-moving strings...
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and Theoretical
سال: 2017
ISSN: 1751-8113,1751-8121
DOI: 10.1088/1751-8121/aa72fe