Superconformal symmetry, correlation functions and the operator product expansion

DOI10.1016/S0550-3213(02)00096-2zbMATH Open1039.81551arXivhep-th/0112251MaRDI QIDQ5961236

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Publication date: 24 April 2002

Published in: (Search for Journal in Brave)

Abstract: Superconformal transformations are derived for the

N = 2, 4 s u p e r m u l t i p l e t s c o r r e s p o n d i n g t o t h e s i m p l e s t c h i r a l p r i m a r y o p e r a t o r s . T h e s e a r e a p p l i e d t o t w o, t h r e e a n d f o u r p o i n t c o r r e l a t i o n f u n c t i o n s . W h e n

N=4

, r e s u l t s a r e o b t a i n e d f o r t h e t h r e e p o i n t f u n c t i o n o f v a r i o u s d e s c e n d a n t o p e r a t o r s, i n c l u d i n g t h e e n e r g y m o m e n t u m t e n s o r a n d S U (4) c u r r e n t . F o r b o t h

N=2$ or 4 superconformal identities are derived for the functions of the two conformal invariants appearing in the four point function for the chiral primary operator. These are solved in terms of a single arbitrary function of the two conformal invariants and one or three single variable functions. The results are applied to the operator product expansion using the exact formula for the contribution of an operator in the operator product expansion in four dimensions to a scalar four point function. Explicit expressions representing exactly the contribution of both long and possible short supermultiplets to the chiral primary four point function are obtained. These are applied to give the leading perturbative and large N corrections to the scale dimensions of long supermultiplets.

Full work available at URL: https://arxiv.org/abs/hep-th/0112251

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