We compute two-point functions of chiral operators Tr Phi^3 in {cal N}=4 SU(N) supersymmetric Yang-Mills theory to the order g^4 in perturbation theory. We perform explicit calculations using {cal N}=1 superspace techniques and find that perturbative corrections to the correlators vanish for all N. While at order g^2 the cancellations can be ascribed to the nonrenormalization theorem valid for correlators of operators in the same multiplet as the stress tensor, at order g^4 this argument no longer applies and the actual cancellation occurs in a highly nontrivial way. Our result is obtained in complete generality, without the need of additional conjectures or assumptions. It gives further support to the belief that such correlators are not renormalized to all orders in g and to all orders in N

Penati, S., Santambrogio, A., & Zanon, D. (1999). Two point functions of chiral operators in N=4 SYM at order g**4. JOURNAL OF HIGH ENERGY PHYSICS, 9912(12).

Two point functions of chiral operators in N=4 SYM at order g**4

PENATI, SILVIA;
1999

Abstract

We compute two-point functions of chiral operators Tr Phi^3 in {cal N}=4 SU(N) supersymmetric Yang-Mills theory to the order g^4 in perturbation theory. We perform explicit calculations using {cal N}=1 superspace techniques and find that perturbative corrections to the correlators vanish for all N. While at order g^2 the cancellations can be ascribed to the nonrenormalization theorem valid for correlators of operators in the same multiplet as the stress tensor, at order g^4 this argument no longer applies and the actual cancellation occurs in a highly nontrivial way. Our result is obtained in complete generality, without the need of additional conjectures or assumptions. It gives further support to the belief that such correlators are not renormalized to all orders in g and to all orders in N
No
Articolo in rivista - Articolo scientifico
Scientifica
AdS/CFT, supersymmetric gauge theories, correlators
English
Penati, S., Santambrogio, A., & Zanon, D. (1999). Two point functions of chiral operators in N=4 SYM at order g**4. JOURNAL OF HIGH ENERGY PHYSICS, 9912(12).
Penati, S; Santambrogio, A; Zanon, D
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/3267
Citazioni
  • Scopus 53
  • ???jsp.display-item.citation.isi??? 60
Social impact