Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2001-07-24
Nucl.Phys. B626 (2002) 265-286
Physics
High Energy Physics
High Energy Physics - Theory
22 pages
Scientific paper
10.1016/S0550-3213(02)00023-8
Two- and three-point correlation functions of arbitrary protected operators are constructed in N=4 SYM using analytic superspace methods. The OPEs of two chiral primary multiplets are given. It is shown that the $n$-point functions of protected operators for $n\leq4$ are invariant under $U(1)_Y$ and it is argued that this implies that the two- and three-point functions are not renormalised. It is shown explicitly how unprotected operators can be accommodated in the analytic superspace formalism in a way which is fully compatible with analyticity. Some new extremal correlators are exhibited.
Heslop Paul J.
Howe P. S.
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