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2 results

  • 26 - Grand Unified Theories

  • from Part IV - Selected Topics beyond the Standard Model
  • Wolfgang Bietenholz, Universidad Nacional Autónoma de México, Uwe-Jens Wiese, Universität Bern, Switzerland
  • Book:
    Uncovering Quantum Field Theory and the Standard Model
    Published online:
    06 February 2025
    Print publication:
    02 January 2025, pp 545-579

  • Summary

    This chapter provides an extensive discussion of Grand Unified Theories (GUTs) and related subjects. It begins with the SU(5) GUT, its fermion multiplets, and the resulting transitions between leptons and quarks, which enable in particular proton decay. In this context, we discuss the baryon asymmetry in the Universe, as well as possible topological defects dating back to the early Universe, according to the Kibble mechanism, such as domain walls, cosmic strings, or magnetic monopoles. That takes us to a review of Dirac and ‘t Hooft–Polaykov monopoles, Julia–Zee dyons, and the effects named after Callan–Rubakov and Witten. Next we discuss fermion masses in the framework of the GUTs with the gauge groups SU(5) and Spin(10). Then we consider small unified theories (without QCD) with a variety of gauge groups. Finally, we summarize the status and prospects of the GUT approach.

  • A mechanism of supernova explosion driven by magnetic monopoles

  • Qiu-He Peng, Liu Jing-Jing, Chih-Kang Chou
  • Journal:
    Proceedings of the International Astronomical Union / Volume 13 / Issue S337 / September 2017
    Published online by Cambridge University Press:
    04 June 2018, pp. 390-391
    Print publication:
    September 2017
    • Article
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  • Taking Rubakov-Callen effect (that nucleons may decay catalyzed by magnetic monopoles) as the energy source, we propose a unified model of supernova driven by magnetic monopoles in this paper.