Embedded defects and symmetry breaking in flipped SU(5)

Anne-Christine Davis and Nathan F. Lepora
Phys. Rev. D 52, 7265 – Published 15 December 1995
PDFExport Citation

Abstract

We explicitly show the analogy between the symmetry-breaking scheme for the GUT flipped SU(5) with that of the Weinberg-Salam theory of electroweak interactions. This allows us to construct the embedded defect spectrum of the flipped SU(5) theory. We find that the spectrum consists of twelve gauge-equivalent unstable leptoquark strings, which are analogous to W strings in electroweak theory, and another string that is gauge inequivalent to the leptoquark strings which we call the ‘‘V string.’’ The V string is analogous to the Z string of electroweak theory, correspondingly admitting a stable semilocal limit. Using data on the running coupling constants we indicate that in the nonsupersymmetric case V strings can be stable for part of the physically viable parameter space. Cosmological consequences are briefly discussed. © 1995 The American Physical Society.

  • Received 17 May 1995

DOI:https://doi.org/10.1103/PhysRevD.52.7265

©1995 American Physical Society

Authors & Affiliations

Anne-Christine Davis

  • Theory Division, CERN, Geneva 23, CH-1211, Switzerland
  • Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Silver Street, Cambridge CB3 9EW, United Kingdom

Nathan F. Lepora

  • Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Silver Street, Cambridge CB3 9EW, United Kingdom

References (Subscription Required)

Click to Expand
Issue

Vol. 52, Iss. 12 — 15 December 1995

Reuse & Permissions
Access Options
Editorial
General Relativity Still Making Waves
September 24, 2015

Clifford Will discusses the importance of Einstein’s general theory of relativity and its relevance for physics research today.

General Relativity
2015 - General Relativity’s Centennial

The editors of the Physical Review journals have curated a collection of landmark papers on General Relativity to celebrate its centennial. These papers are currently free to read.

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×