On operator mixing in N=4 SYM

被引：64

作者：

Bianchi, M ^{[1
]}

Eden, B ^{[1
]}

Rossi, G ^{[1
]}

Stanev, YS ^{[1
]}

机构：

[1] Univ Roma Tor Vergata, Ist Nazl Fis Nucl, Sezione Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

来源：

NUCLEAR PHYSICS B | 2002年 / 646卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(02)00817-9

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We resolve the mixing of the scalar operators of naive dimension 4 belonging to the representation 20' of the SU(4) R-symmetry in N = 4 SYM. We compute the order g(2) corrections to their anomalous dimensions and show the absence of instantonic contributions thereof. Ratios of the resulting expressions are irrational numbers, even in the large N limit where, however, we observe the expected decoupling of double-trace operators from single-trace ones. We briefly comment on the generalizations of our results required in order to make contact with the double scaling limit of the theory conjectured to be holographically dual to type IIB superstring on a pp-wave. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：69 / 101

页数：33

共 119 条

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