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Alfaro, J. and Dobado González, Antonio and Espriu, D. (1999) Chiral Lagrangians and the QCD string. Physics Letters B, 460 (03/04/). pp. 447-454. ISSN 0370-2693
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Official URL: http://dx.doi.org/10.1016/S0370-2693(99)00809-6
Abstract
We propose a method to derive the low-energy effective action of QCD assuming that the long-distance properties of strong interactions can be described by a string theory. We bypass the usual problems related to the existence of the tachyon and absence of the adequate Adler zero by using a sigma model approach where excitations above the correct (chirally non-invariant) QCD vacuum are included. Two-dimensional conformal invariance then implies the vanishing of the O(p(4)) effective lagrangian coefficients. We interpret this result and discuss ways to go beyond this limit.
Item Type: | Article |
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Additional Information: | © 1999 Published by Elsevier Science B.V. All rights reserved. |
Uncontrolled Keywords: | Models, Supergravity, Fields |
Subjects: | Sciences > Physics |
ID Code: | 22720 |
Deposited On: | 09 Sep 2013 16:56 |
Last Modified: | 31 Dec 2020 00:01 |
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