BRST anomalies and mass renormalisation with anomalous U(1) gauge symmetries in string theory.

Title: BRST anomalies and mass renormalisation with anomalous U(1) gauge symmetries in string theory.
Identifier: AAI9224830
identifier: 9224830
Creator: Lee, Christopher Ji-Hua.
Contributor: Adviser: Michael Dine
Date: 1992
Language: English
Publisher: City University of New York.
Subject: Physics, Elementary Particles and High Energy
Abstract: The heterotic string, when compactified from ten to four dimensional spacetime, has a gauge group that often includes apparently anomalous U(1) gauge symmetries which lead to the generation of masses at one-loop. It is shown how the masses, and fermion masses in particular, can be calculated consistently from the effective action, field theory and in the string theory. The resulting mass shifts violate symmetries, the BRST symmetry in particular. Mass renormalisation is carried out in the BRST framework for both bosons and fermions using local properties and is shown to be a consistent procedure by explicit calculations up to one-loop.
Type: dissertation
Source: PQT Legacy CUNY.xlsx
degree: Ph.D.

Media: BRST anomalies and mass renormalisation with anomalous U(1) gauge symmetries in string theory.