On the BRST invariance of string theory

Radiative corrections to string scattering amplitude generate, in general, BRST anomalies due to the massless particle tadpole, the on-shell external two-point function singularities, and the intermediate unphysical cut singularities. It is proved that they originate from the boundaries of moduli sp...

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Main Author: Rey, Soo-Jong
Format: Others
Published: 1988
Online Access:https://thesis.library.caltech.edu/31/1/Rey_sj_1988.pdf
Rey, Soo-Jong (1988) On the BRST invariance of string theory. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/MDK4-NY02. https://resolver.caltech.edu/CaltechETD:etd-01052005-142036 <https://resolver.caltech.edu/CaltechETD:etd-01052005-142036>
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spelling ndltd-CALTECH-oai-thesis.library.caltech.edu-312019-12-22T03:05:36Z On the BRST invariance of string theory Rey, Soo-Jong Radiative corrections to string scattering amplitude generate, in general, BRST anomalies due to the massless particle tadpole, the on-shell external two-point function singularities, and the intermediate unphysical cut singularities. It is proved that they originate from the boundaries of moduli space. Unitarity, analyticity, and BRST invariance are restored only after we add appropriate local counterterms to the scattering amplitudes. We show that counterterms have physical interpretations as the Fischler-Susskind mechanism, the mass renormalization, and the contact interactions respectively. 1988 Thesis NonPeerReviewed application/pdf https://thesis.library.caltech.edu/31/1/Rey_sj_1988.pdf https://resolver.caltech.edu/CaltechETD:etd-01052005-142036 Rey, Soo-Jong (1988) On the BRST invariance of string theory. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/MDK4-NY02. https://resolver.caltech.edu/CaltechETD:etd-01052005-142036 <https://resolver.caltech.edu/CaltechETD:etd-01052005-142036> https://thesis.library.caltech.edu/31/
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sources NDLTD
description Radiative corrections to string scattering amplitude generate, in general, BRST anomalies due to the massless particle tadpole, the on-shell external two-point function singularities, and the intermediate unphysical cut singularities. It is proved that they originate from the boundaries of moduli space. Unitarity, analyticity, and BRST invariance are restored only after we add appropriate local counterterms to the scattering amplitudes. We show that counterterms have physical interpretations as the Fischler-Susskind mechanism, the mass renormalization, and the contact interactions respectively.
author Rey, Soo-Jong
spellingShingle Rey, Soo-Jong
On the BRST invariance of string theory
author_facet Rey, Soo-Jong
author_sort Rey, Soo-Jong
title On the BRST invariance of string theory
title_short On the BRST invariance of string theory
title_full On the BRST invariance of string theory
title_fullStr On the BRST invariance of string theory
title_full_unstemmed On the BRST invariance of string theory
title_sort on the brst invariance of string theory
publishDate 1988
url https://thesis.library.caltech.edu/31/1/Rey_sj_1988.pdf
Rey, Soo-Jong (1988) On the BRST invariance of string theory. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/MDK4-NY02. https://resolver.caltech.edu/CaltechETD:etd-01052005-142036 <https://resolver.caltech.edu/CaltechETD:etd-01052005-142036>
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