String theory gives S matrix elements from which is not possible to read any gauge information. Using factorization we go off shell in the simplest and most naive way and we read which are the vertices suggested by string. To compare with the associated Effective Field Theory it is natural to use color ordered vertices. The α′=0 color ordered vertices suggested by string theory are more efficient than the usual ones since the three gluon color ordered vertex has three terms instead of six and the four gluon one has one term instead of three. They are written in the so called Gervais–Neveu gauge. The full Effective Field Theory is in a generalization of the Gervais–Neveu gauge with α′ corrections. Moreover a field redefinition is required to be mapped to the field used by string theory.

On the gauge chosen by the bosonic open string

PESANDO, Igor
2017-01-01

Abstract

String theory gives S matrix elements from which is not possible to read any gauge information. Using factorization we go off shell in the simplest and most naive way and we read which are the vertices suggested by string. To compare with the associated Effective Field Theory it is natural to use color ordered vertices. The α′=0 color ordered vertices suggested by string theory are more efficient than the usual ones since the three gluon color ordered vertex has three terms instead of six and the four gluon one has one term instead of three. They are written in the so called Gervais–Neveu gauge. The full Effective Field Theory is in a generalization of the Gervais–Neveu gauge with α′ corrections. Moreover a field redefinition is required to be mapped to the field used by string theory.
2017
918
129
161
http://www.elsevier.com/locate/nuclphysb
High Energy Physics - Theory; High Energy Physics - Theory; Nuclear and High Energy Physics
Pesando, Igor
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1647794
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