Abstract
Beisert et al. have identified an integrable SU (2, 2) quantum spin chain which gives the one-loop anomalous dimensions of certain operators in large Nc QCD. We derive a set of nonlinear integral equations (NLIEs) for this model, and compute the scattering matrix of the various (in particular, magnon) excitations.
| Original language | English |
|---|---|
| Pages (from-to) | 402-422 |
| Number of pages | 21 |
| Journal | Nuclear Physics, Section B |
| Volume | 798 |
| Issue number | 3 |
| DOIs | |
| State | Published - 1 Aug 2008 |
Bibliographical note
Funding Information:One of us (C.A.) thanks Shizuoka University and the University of Miami for support. This work was supported in part by a Korea Research Foundation Grant funded by the Korean government (MOEHRD) (KRF-2006-312-C00096) (C.A.), by the National Science Foundation under Grants PHY-0244261 and PHY-0554821 (R.N.), and by the Ministry of Education of Japan, a Grant-in-Aid for Scientific Research 17540354 (J.S.).
Keywords
- Anomalous dimension
- Integrability
- Nonlinear integral equation
- QCD
- Super-Yang-Mills theory