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Titolo:
A two-dimensional integrable axionic sigma-model and T-duality
Autore:
Balog, J; Forgacs, P; Palla, L;
Indirizzi:
Hungarian Acad Sci, Res Inst Particle & Nucl Phys, H-1525 Budapest 114, Hungary Hungarian Acad Sci Budapest Hungary 114 ys, H-1525 Budapest 114, Hungary Univ Tours, Lab Math & Phys Theor, F-37200 Tours, France Univ Tours Tours France F-37200 Math & Phys Theor, F-37200 Tours, France Lorand Eotvos Univ, Inst Theoret Phys, H-1117 Budapest, Hungary Lorand Eotvos Univ Budapest Hungary H-1117 hys, H-1117 Budapest, Hungary
Titolo Testata:
PHYSICS LETTERS B
fascicolo: 3-4, volume: 484, anno: 2000,
pagine: 367 - 374
SICI:
0370-2693(20000706)484:3-4<367:ATIASA>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSFORMATIONS; O(3); FAMILY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Balog, J Hungarian Acad Sci, Res Inst Particle & Nucl Phys, POB 49, H-1525Budapest114, Hungary Hungarian Acad Sci POB 49 Budapest Hungary 114 apest114, Hungary
Citazione:
J. Balog et al., "A two-dimensional integrable axionic sigma-model and T-duality", PHYS LETT B, 484(3-4), 2000, pp. 367-374

Abstract

An S-matrix is proposed fur the two dimensional O(3) sigma-model with a dynamical theta-term (axion model). Exploiting an Abelian T-duality transformation connecting the axion model to an integrable SU(2) x U(1) symmetric principal sigma-model, strong evidence is presented for the correctness of the proposed S-matrix by comparing the perturbatively calculated free energies with the ones previously obtained by the Thermodynamical Bethe Ansatz. This T-duality transformation also leads to a new Lax-pair for both models. The quantum non-integrability of the O(3) sigma-model with a constant theta-term, in contradistinction to the axion model, is illustrated by calculating the 2 --> 3 particle production amplitude to lowest order in theta. (C) 2000 Elsevier Science B.V. All rights reserved.

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Documento generato il 14/07/20 alle ore 10:11:10