One loop corrections to coupling constants in string effective field theory

In the framework of a recently proposed method for computing exactly string amplitudes regularized in the infra-red, I determine the one-loop correlators for auxiliary fields in the symmetric Z_2\times Z_2 orbifold model. The D-field correlation function turns out to give the one-loop corrections fo...

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Detalles Bibliográficos
Autor principal: Petropoulos, P.M.
Lenguaje:eng
Publicado: 1996
Materias:
Particle Physics - Theory
Acceso en línea:http://cds.cern.ch/record/302387
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author Petropoulos, P.M.
author_facet Petropoulos, P.M.
author_sort Petropoulos, P.M.
collection CERN
description In the framework of a recently proposed method for computing exactly string amplitudes regularized in the infra-red, I determine the one-loop correlators for auxiliary fields in the symmetric Z_2\times Z_2 orbifold model. The D-field correlation function turns out to give the one-loop corrections for the gauge couplings, which amounts to a string-theory supersymmetry Ward identity. The two-point function for uncharged F fields leads to the one-loop renormalization of the moduli K\"ahler metric, and eventually to the corrections for the Yukawa couplings.
id cern-302387
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1996
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spelling cern-3023872023-03-14T18:08:47Zhttp://cds.cern.ch/record/302387engPetropoulos, P.M.One loop corrections to coupling constants in string effective field theoryParticle Physics - TheoryIn the framework of a recently proposed method for computing exactly string amplitudes regularized in the infra-red, I determine the one-loop correlators for auxiliary fields in the symmetric Z_2\times Z_2 orbifold model. The D-field correlation function turns out to give the one-loop corrections for the gauge couplings, which amounts to a string-theory supersymmetry Ward identity. The two-point function for uncharged F fields leads to the one-loop renormalization of the moduli K\"ahler metric, and eventually to the corrections for the Yukawa couplings.In the framework of a recently proposed method for computing exactly string amplitudes regularized in the infra-red, I determine the one-loop correlators for auxiliary fields in the symmetric $Z_2\times Z_2$ orbifold model. The $D$-field correlation function turns out to give the one-loop corrections for the gauge couplings, which amounts to a string-theory supersymmetry Ward identity. The two-point function for uncharged $F$ fields leads to the one-loop renormalization of the moduli K\"ahler metric, and eventually to the corrections for the Yukawa couplings.hep-th/9605012CERN-TH-96-009CERN-TH-96-09CERN-TH-96-009oai:cds.cern.ch:3023871996
spellingShingle Particle Physics - Theory
Petropoulos, P.M.
One loop corrections to coupling constants in string effective field theory
title One loop corrections to coupling constants in string effective field theory
title_full One loop corrections to coupling constants in string effective field theory
title_fullStr One loop corrections to coupling constants in string effective field theory
title_full_unstemmed One loop corrections to coupling constants in string effective field theory
title_short One loop corrections to coupling constants in string effective field theory
title_sort one loop corrections to coupling constants in string effective field theory
topic Particle Physics - Theory
url http://cds.cern.ch/record/302387
work_keys_str_mv AT petropoulospm oneloopcorrectionstocouplingconstantsinstringeffectivefieldtheory

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