Grand unified theories in higher dimensions: from the heterotic string to Randall-Sundrum.

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dc.contributor.advisorCleaver, Gerald B.
dc.contributor.authorDundee, G. Benjamin (George Benjamin).
dc.contributor.departmentPhysics.en
dc.contributor.otherBaylor University. Dept. of Physics.en
dc.date.accessioned2007-02-19T20:24:20Z
dc.date.available2007-02-19T20:24:20Z
dc.date.copyright2006-09-18
dc.date.issued2007-02-19T20:24:20Z
dc.descriptionIncludes bibliographical references (p. 115-123).en
dc.description.abstractWe explore the phenomenology of effective field theories in two different cases. First, we look at a mirror universe model, using an orbifold compactification of the heterotic string, in the free fermionic approach. An expected non-chiral Pati-Salam mirror universe model is transformed into a chiral model with enhanced hidden sector gauge symmetry and reduced observable sector gauge symmetry: $[SU(4)_C\times SU(2)_L\times SU(2)_R]^{O}\times [SU(4)_C\times SU(2)_L\times SU(2)_R]^{H}$, is necessarily transformed into a chiral $[SU(4)_C\times SU(2)_L]^{O}\times [SO(10)\times SU(2)_R]^{H}$. Second, we look at a non-supersymmetric flipped SU(5) theory built within the Randall-Sundrum framework. We derive the low energy running of the couplings, and show how the effects of the numbers and types of representations used for model building can be constrained by looking at universal contributions from KK modes to the beta functions. We show that the Yukawa couplings are, in general, exponentially small, leading to an exponentially short proton lifetime.en
dc.description.degreeM.S.en
dc.description.statementofresponsibilityby G. Benjamin Dundee.en
dc.format.extentviii, 123 p. : ill.en
dc.format.extent1561159 bytes
dc.format.extent311909 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2104/4905
dc.language.isoen_USen
dc.rightsBaylor University theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. Contact librarywebmaster@baylor.edu for inquiries about permission.en
dc.rights.accessrightsWorldwide accessen
dc.subjectGrand unified theories (Nuclear physics).en
dc.subjectParticles (Nuclear physics).en
dc.subjectString models.en
dc.titleGrand unified theories in higher dimensions: from the heterotic string to Randall-Sundrum.en
dc.typeThesisen

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