منابع مشابه
Spinning superstrings at two loops: strong-coupling corrections to dimensions of large-twist SYM operators
We consider folded (S, J) spinning strings in AdS5 × S5 (with one spin component in AdS5 and a one in S 5) corresponding to the Tr(DSΦJ) operators in the sl(2) sector of the N = 4 SYM theory in the special scaling limit in which both the string mass ∼ √ λ lnS and J are sent to infinity with their ratio fixed. Expanding in the parameter l = J √ λ lnS we compute the 2-loop string sigma model corr...
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We present a simple method to count the number of hadronic form factors based on the partial wave formalism and crossing symmetry. In particular, we show that the number of independent nucleon form factors of spin-n, twist2 operators (the vector current and energy-momentum tensor being special examples) is n+1. These generalized form factors define the generalized (offforward) parton distributi...
متن کاملThree loop anomalous dimensions of twist - 3 gauge operators in N = 4 SYM
We propose a closed expression for the three loop anomalous dimension of a class of twist-3 operators built with gauge fields and covariant derivatives. To this aim, we solve the long-range Bethe Ansatz equations at finite spin and provide a consistent analytical formula obtained assuming maximal transcendentality violation as suggested by the known one-loop anomalous dimension. The final resul...
متن کاملSpinning superstrings at 2-loops: strong-coupling corrections to dimensions of large-twist SYM operators
We consider folded (S, J) spinning strings in AdS5 × S5 (with one spin component in AdS5 and a one in S 5) corresponding to the Tr(DSΦJ) operators in the sl(2) sector of the N = 4 SYM theory in the special scaling limit in which both the string mass ∼ √ λ lnS and J are sent to infinity with their ratio fixed. Expanding in the parameter l = J √ λ lnS we compute the 2-loop string sigma model corr...
متن کاملA 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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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2005
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2005.09.043