Instanton corrections to twist-two operators

A bstract We present the calculation of the leading instanton contribution to the scaling dimensions of twist-two operators with arbitrary spin and to their structure constants in the OPE of two half-BPS operators in N = 4 SYM. For spin-two operators we verify that, in agreement with N = 4 superconf...

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Bibliographic Details
Published inThe journal of high energy physics Vol. 2017; no. 6; pp. 1 - 32
Main Authors Alday, Luis F., Korchemsky, Gregory P.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.06.2017
Springer Nature B.V
Springer
SpringerOpen
Subjects
Classical and Quantum Gravitation
Elementary Particles
Extended Supersymmetry
High energy physics
High Energy Physics - Theory
Mathematical analysis
Operators
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Scaling
Solitons Monopoles and Instantons
String Theory
Supersymmetric Gauge Theory
Solitons Monopoles and Instantons
Supersymmetric Gauge Theory
Extended Supersymmetry
operator product expansion
Ward identity: conformal
instanton: correction
operator: Konishi
scaling: dimension
spin: high
correlation function
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Summary:A bstract We present the calculation of the leading instanton contribution to the scaling dimensions of twist-two operators with arbitrary spin and to their structure constants in the OPE of two half-BPS operators in N = 4 SYM. For spin-two operators we verify that, in agreement with N = 4 superconformal Ward identities, the obtained expressions coincide with those for the Konishi operator. For operators with high spin we find that the leading instanton correction vanishes. This arises as the result of a rather involved calculation and requires a better understanding.
ISSN:1029-8479
1126-6708
1029-8479
DOI:10.1007/JHEP06(2017)008