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Particles and Fields
Eur. Phys. J. C 26, 293-297 (2002)
DOI: 10.1140/epjc/s2002-01047-8

On decoupling of massless modes in NCOS theories

S. Hyun1, S. Lee2, 3 and H. Shin2, 3

1  Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Korea
2  BK 21 Physics Research Division and Institute of Basic Science, Sungkyunkwan University, Suwon 440-746, Korea
3  School of Physics, Korea Institute for Advanced Study, Seoul 130-012, Korea


(Received: 23 April 2002 / Published online: 25 October 2002 )

Abstract
We revisit the decoupling phenomenon of massless modes in non-commutative open string (NCOS) theories. We check the decoupling by explicit computation in (2+1) or higher dimensional NCOS theories and recapitulate the validity of the decoupling to all orders in perturbation theory.



© Società Italiana di Fisica, Springer-Verlag 2002